)]}' { "log": [ { "commit": "335bc70b6b5fdc9b4e28cb56c27f10124064f9da", "tree": "7f5a1594a09cdcb2ea9a5d768ea72c0256f6aa3c", "parents": [ "404cbbd52f10d1d5719ad82ce8ba903890779255", "66832eb4baaaa9abe4c993ddf9113a79e39b9915" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jan 18 14:29:37 2011 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jan 18 14:29:37 2011 -0800" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Validate cpu early in perf_event_alloc()\n perf: Find_get_context: fix the per-cpu-counter check\n perf: Fix contexted inheritance\n" }, { "commit": "66832eb4baaaa9abe4c993ddf9113a79e39b9915", "tree": "bc1b60069c5313231a5ddca0f0dcab953489bb1e", "parents": [ "22a4ec729017ba613337a28f306f94ba5023fe2e" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Jan 18 17:10:32 2011 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jan 18 19:34:23 2011 +0100" }, "message": "perf: Validate cpu early in perf_event_alloc()\n\nStarting from perf_event_alloc()-\u003eperf_init_event(), the kernel\nassumes that event-\u003ecpu is either -1 or the valid CPU number.\n\nChange perf_event_alloc() to validate this argument early. This\nalso means we can remove the similar check in\nfind_get_context().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: gregkh@suse.de\nCc: stable@kernel.org\nLKML-Reference: \u003c20110118161032.GC693@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "22a4ec729017ba613337a28f306f94ba5023fe2e", "tree": "a0e6ad7131088b4e1cf1072f76f9b34ead7e9065", "parents": [ "c5ed5145591774bd9a2960ba4ca45a02fc70aad1" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Jan 18 17:10:08 2011 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jan 18 19:34:23 2011 +0100" }, "message": "perf: Find_get_context: fix the per-cpu-counter check\n\nIf task \u003d\u003d NULL, find_get_context() should always check that cpu\nis correct.\n\nAfaics, the bug was introduced by 38a81da2 \"perf events: Clean\nup pid passing\", but even before that commit \"\u0026\u0026 cpu !\u003d -1\" was\nnot exactly right, -ESRCH from find_task_by_vpid() is not\naccurate.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: gregkh@suse.de\nCc: stable@kernel.org\nLKML-Reference: \u003c20110118161008.GB693@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c5ed5145591774bd9a2960ba4ca45a02fc70aad1", "tree": "f7e53164a33e1a0a41a4b3a7b508835361e39689", "parents": [ "ad7f4e3f7b966ac09c8f98dbc5024813a1685775" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Jan 17 13:45:37 2011 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jan 18 15:10:35 2011 +0100" }, "message": "perf: Fix contexted inheritance\n\nLinus reported that the RCU lockdep annotation bits triggered for this\nrcu_dereference() because we\u0027re not holding rcu_read_lock().\n\nGoing over the code I cannot convince myself its correct:\n\n - holding a ref on the parent_ctx, doesn\u0027t avoid it being uncloned\n concurrently (as the comment says), so we can race with a free.\n\n - holding parent_ctx-\u003emutex doesn\u0027t avoid the above free from taking\n place either, it would at best avoid parent_ctx from being freed.\n\nI.e. the warning is correct. To fix the bug, serialize against the\nunclone_ctx() call by extending the reach of the parent_ctx-\u003elock.\n\nReported-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "008d23e4852d78bb2618f2035f8b2110b6a6b968", "tree": "81c88f744f6f3fc84132527c1ddc0b4da410c5e2", "parents": [ "8f685fbda43deccd130d192c9fcef1444649eaca", "bfc672dcf323877228682aff79dff8ecd9f30ff8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 13 10:05:56 2011 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 13 10:05:56 2011 -0800" }, "message": "Merge branch \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)\n Documentation/trace/events.txt: Remove obsolete sched_signal_send.\n writeback: fix global_dirty_limits comment runtime -\u003e real-time\n ppc: fix comment typo singal -\u003e signal\n drivers: fix comment typo diable -\u003e disable.\n m68k: fix comment typo diable -\u003e disable.\n wireless: comment typo fix diable -\u003e disable.\n media: comment typo fix diable -\u003e disable.\n remove doc for obsolete dynamic-printk kernel-parameter\n remove extraneous \u0027is\u0027 from Documentation/iostats.txt\n Fix spelling milisec -\u003e ms in snd_ps3 module parameter description\n Fix spelling mistakes in comments\n Revert conflicting V4L changes\n i7core_edac: fix typos in comments\n mm/rmap.c: fix comment\n sound, ca0106: Fix assignment to \u0027channel\u0027.\n hrtimer: fix a typo in comment\n init/Kconfig: fix typo\n anon_inodes: fix wrong function name in comment\n fix comment typos concerning \"consistent\"\n poll: fix a typo in comment\n ...\n\nFix up trivial conflicts in:\n - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c)\n - fs/ext4/ext4.h\n\nAlso fix missed \u0027diabled\u0027 typo in drivers/net/bnx2x/bnx2x.h while at it.\n" }, { "commit": "4158755d3136f4cb05c1a8a260e9c06f93baeb48", "tree": "4ca2b7b020582a4b353af84d5684a91d4bcf995d", "parents": [ "5632ab12e9e1fcd7e94058567e181d8f35e83798" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Jan 03 18:20:01 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 07 15:08:51 2011 +0100" }, "message": "perf_events: Add perf_event_time()\n\nAdds perf_event_time() to try and centralize access to event\ntiming and in particular ctx-\u003etime. Prepares for cgroup support.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4d22059c.122ae30a.5e0e.ffff8b8b@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5632ab12e9e1fcd7e94058567e181d8f35e83798", "tree": "70b077bd489e889bb049ded097119ea382a254f3", "parents": [ "0b3fcf178deefd7b64154c2c0760a2c63df0b74f" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Jan 03 18:20:01 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 07 15:08:51 2011 +0100" }, "message": "perf_events: Generalize use of event_filter_match()\n\nReplace all occurrences of:\n\tevent-\u003ecpu !\u003d -1 \u0026\u0026 event-\u003ecpu \u003d\u003d smp_processor_id()\nby a call to:\n\tevent_filter_match(event)\n\nThis makes the code more consistent and will make the cgroup\npatch smaller.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4d220593.2308e30a.48c5.ffff8ae9@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0b3fcf178deefd7b64154c2c0760a2c63df0b74f", "tree": "b84509c9ac5935ac41f6fc9c444bc406cd2c54d8", "parents": [ "23a2f3ab46596d9fd0b0e592d2101bea90970594" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Jan 03 18:20:01 2011 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jan 07 15:08:50 2011 +0100" }, "message": "perf_events: Move code around to prepare for cgroup\n\nIn particular this patch move perf_event_exit_task() before\ncgroup_exit() to allow for cgroup support. The cgroup_exit()\nfunction detaches the cgroups attached to a task.\n\nOther movements include hoisting some definitions and inlines\nat the top of perf_event.c\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4d22058b.cdace30a.4657.ffff95b1@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4b7bd364700d9ac8372eff48832062b936d0793b", "tree": "0dbf78c95456a0b02d07fcd473281f04a87e266d", "parents": [ "c0d8768af260e2cbb4bf659ae6094a262c86b085", "90a8a73c06cc32b609a880d48449d7083327e11a" ], "author": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Wed Dec 22 18:57:02 2010 +0100" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Wed Dec 22 18:57:02 2010 +0100" }, "message": "Merge branch \u0027master\u0027 into for-next\n\nConflicts:\n\tMAINTAINERS\n\tarch/arm/mach-omap2/pm24xx.c\n\tdrivers/scsi/bfa/bfa_fcpim.c\n\nNeeded to update to apply fixes for which the old branch was too\noutdated.\n" }, { "commit": "abe43400579d5de0078c2d3a760e6598e183f871", "tree": "1f6faf8a1ab60f3f9bfb26265c84c2725e6c4aaa", "parents": [ "2e80a82a49c4c7eca4e35734380f28298ba5db19" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Nov 17 23:17:37 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:36:43 2010 +0100" }, "message": "perf: Sysfs enumeration\n\nSimple sysfs emumeration of the PMUs.\n\nUse a \"event_source\" bus, and add PMU devices using their name.\n\nEach PMU device has a type attribute which contrains the value needed\nfor perf_event_attr::type to identify this PMU.\n\nThis is the minimal stub needed to start using this interface,\nwe\u0027ll consider extending the sysfs usage later.\n\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nCc: Greg KH \u003cgregkh@suse.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101117222056.316982569@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2e80a82a49c4c7eca4e35734380f28298ba5db19", "tree": "c60fe1cc6696c893a2c6c5891981bf8e81d9ab90", "parents": [ "9f58a205c62d0dad1df38d076324a89b1a0f1d65" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Nov 17 23:17:36 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:36:43 2010 +0100" }, "message": "perf: Dynamic pmu types\n\nExtend the perf_pmu_register() interface to allow for named and\ndynamic pmu types.\n\nBecause we need to support the existing static types we cannot use\ndynamic types for everything, hence provide a type argument.\n\nIf we want to enumerate the PMUs they need a name, provide one.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101117222056.259707703@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "006b20fe4c69189b0d854e5eabf269e50ca86cdd", "tree": "948b08825a36114c85ddc2bfcd965c261e32810f", "parents": [ "5f29805a4f4627e766f862ff9f10c14f5f314359", "d949750fed168b6553ca11ed19e4affd19d7a4d7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:22:25 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:22:27 2010 +0100" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nMerge reason: We want to apply a dependent patch.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ce677831a4abd0f9f957c90ac6f6a0d0472bafb4", "tree": "755fb098fa0e27bfa710272cd5686dabc7922360", "parents": [ "5167695753c63444a9e6cbbef136200a16c7a225" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Sun Oct 24 21:50:42 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:14:31 2010 +0100" }, "message": "perf: Fix off by one in perf_swevent_init()\n\nThe perf_swevent_enabled[] array has PERF_COUNT_SW_MAX elements.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101024195041.GT5985@bicker\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c277443cfc29b1623b4923219ff0bdb48b91b589", "tree": "0655516f81164a42dfb06e416b54c50cac33f433", "parents": [ "c079c791c5a0627fc7b752d31d72e274e0596ba8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 08 15:29:02 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:16:31 2010 +0100" }, "message": "perf: Stop all counters on reboot\n\nUse the reboot notifier to detach all running counters on reboot, this\nsolves a problem with kexec where the new kernel doesn\u0027t expect\nrunning counters (rightly so).\n\nIt will however decrease the coverage of the NMI watchdog. Making a\nkexec specific reboot notifier callback would be best, however that\nwould require touching all notifier callback handlers as they are not\nproperly structured to deal with new state.\n\nAs a compromise, place the perf reboot notifier at the very last\nposition in the list.\n\nReported-by: Yinghai Lu \u003cyinghai@kernel.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nCc: Don Zickus \u003cdzickus@redhat.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5167695753c63444a9e6cbbef136200a16c7a225", "tree": "6394b1e620027882556beb2e899449805dd3c3cc", "parents": [ "6313e3c21743cc88bb5bd8aa72948ee1e83937b6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Dec 07 14:18:20 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:14:08 2010 +0100" }, "message": "perf: Fix duplicate events with multiple-pmu vs software events\n\nBecause the multi-pmu bits can share contexts between struct pmu\ninstances we could get duplicate events by iterating the pmu list.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c980d1091810df13f21aabbce545fd98f545bbf7", "tree": "ccf26c6f97ac4965dee6daa7a91dde6b4108b94e", "parents": [ "6844c09d849aeb00e8ddfe9525e8567a531c22d0" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Dec 04 23:02:20 2010 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Dec 04 23:02:20 2010 -0200" }, "message": "perf events: Make sample_type identity fields available in all PERF_RECORD_ events\n\nIf perf_event_attr.sample_id_all is set it will add the PERF_SAMPLE_ identity\ninfo:\n\nTID, TIME, ID, CPU, STREAM_ID\n\nAs a trailer, so that older perf tools can process new files, just ignoring the\nextra payload.\n\nWith this its possible to do further analysis on problems in the event stream,\nlike detecting reordering of MMAP and FORK events, etc.\n\nV2: Fixup header size in comm, mmap and task processing, as we have to take into\naccount different sample_types for each matching event, noticed by Thomas Gleixner.\n\nThomas also noticed a problem in v2 where if we didn\u0027t had space in the buffer we\nwouldn\u0027t restore the header size.\n\nTested-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "6844c09d849aeb00e8ddfe9525e8567a531c22d0", "tree": "6377067b6979199b249596aa6f3c9204d38cb8eb", "parents": [ "614b6780eb0c393d2fb49ff62d61f29b877bd07e" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Fri Dec 03 16:36:35 2010 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Dec 04 22:56:48 2010 -0200" }, "message": "perf events: Separate the routines handling the PERF_SAMPLE_ identity fields\n\nThose will be made available in sample like events like MMAP, EXEC, etc in a\nfollowup patch. So precalculate the extra id header space and have a separate\nroutine to fill them up.\n\nV2: Thomas noticed that the id header needs to be precalculated at\ninherit_events too:\n\nLKML-Reference: \u003calpine.LFD.2.00.1012031245220.2653@localhost6.localdomain6\u003e\n\nTested-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003c1291318772-30880-2-git-send-email-acme@infradead.org\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "614b6780eb0c393d2fb49ff62d61f29b877bd07e", "tree": "6c366435b7960dfa84f5592486a2fad8f4526205", "parents": [ "e4b546a3643fbfc510d5ef7db538e4d3ab00effb" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Dec 03 16:24:32 2010 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Sat Dec 04 22:56:11 2010 -0200" }, "message": "perf events: Fix event inherit fallout of precalculated headers\n\nThe precalculated header size is not updated when an event is inherited. That\nresults in bogus sample entries for all child events. Bug introduced in c320c7b.\n\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLKML-Reference: \u003calpine.LFD.2.00.1012031245220.2653@localhost6.localdomain6\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "c320c7b7d380e630f595de1236d9d085b035d5b4", "tree": "e1544fa8cc259a1d300fac9104dd3c46458572fe", "parents": [ "068ffaa8bfb67c2ddb3ecaf38cc90f94a1a92fe3" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Oct 20 12:50:11 2010 -0200" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Tue Nov 30 19:19:04 2010 -0200" }, "message": "perf events: Precalculate the header space for PERF_SAMPLE_ fields\n\nPERF_SAMPLE_{CALLCHAIN,RAW} have variable lenghts per sample, but the others\ncan be precalculated, reducing a bit the per sample cost.\n\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ian Munsie \u003cimunsie@au1.ibm.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "fa9f90be745d3b600a9d97a063be404c5e5d9071", "tree": "b1d3a0c309c2518effde9df050c2714d116f98e9", "parents": [ "73d8c34f3d78ccf90a431c221df10377affce650" ], "author": { "name": "Jesper Juhl", "email": "jj@chaosbits.net", "time": "Sun Nov 28 21:39:34 2010 +0100" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Sun Nov 28 23:08:04 2010 +0100" }, "message": "Kill off a bunch of warning: ‘inline’ is not at beginning of declaration\n\nThese warnings are spewed during a build of a \u0027allnoconfig\u0027 kernel\n(especially the ones from u64_stats_sync.h show up a lot) when building\nwith -Wextra (which I often do)..\nThey are\n a) annoying\n b) easy to get rid of.\nThis patch kills them off.\n\ninclude/linux/u64_stats_sync.h:70:1: warning: ‘inline’ is not at beginning of declaration\ninclude/linux/u64_stats_sync.h:77:1: warning: ‘inline’ is not at beginning of declaration\ninclude/linux/u64_stats_sync.h:84:1: warning: ‘inline’ is not at beginning of declaration\ninclude/linux/u64_stats_sync.h:96:1: warning: ‘inline’ is not at beginning of declaration\ninclude/linux/u64_stats_sync.h:115:1: warning: ‘inline’ is not at beginning of declaration\ninclude/linux/u64_stats_sync.h:127:1: warning: ‘inline’ is not at beginning of declaration\nkernel/time.c:241:1: warning: ‘inline’ is not at beginning of declaration\nkernel/time.c:257:1: warning: ‘inline’ is not at beginning of declaration\nkernel/perf_event.c:4513:1: warning: ‘inline’ is not at beginning of declaration\nmm/page_alloc.c:4012:1: warning: ‘inline’ is not at beginning of declaration\n\nSigned-off-by: Jesper Juhl \u003cjj@chaosbits.net\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "963988262c3c8f4234f64a0dde59446a295e07bb", "tree": "4bdb97b340fe0432f7259bfcc7b64b4bc8d65c2d", "parents": [ "5d508e820a23d9b6e8a149dfaa8ba5cbedf3d95c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Nov 24 18:55:29 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:14:55 2010 +0100" }, "message": "perf: Ignore non-sampling overflows\n\nSome arch implementations call perf_event_overflow() by \u0027accident\u0027,\nignore this.\n\nReported-by: Francis Moreau \u003cfrancis.moro@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5d508e820a23d9b6e8a149dfaa8ba5cbedf3d95c", "tree": "f11741710e4a2bb6b5c50e0d0b8c8cea0e6d9d6d", "parents": [ "2e939d1da9b5628642314c1e68b4319e61263c94" ], "author": { "name": "Franck Bui-Huu", "email": "fbuihuu@gmail.com", "time": "Tue Nov 23 16:21:45 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:14:55 2010 +0100" }, "message": "perf: Don\u0027t bother to init the hrtimer for no SW sampling counters\n\nSigned-off-by: Franck Bui-Huu \u003cfbuihuu@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1290525705-6265-3-git-send-email-fbuihuu@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2e939d1da9b5628642314c1e68b4319e61263c94", "tree": "6f950949dcacdb1332b8001351fb317777df4930", "parents": [ "6c7e550f13f8ad82efb6a5653ae628c2543c1768" ], "author": { "name": "Franck Bui-Huu", "email": "fbuihuu@gmail.com", "time": "Tue Nov 23 16:21:44 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:14:55 2010 +0100" }, "message": "perf: Limit event refresh to sampling event\n\nSigned-off-by: Franck Bui-Huu \u003cfbuihuu@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1290525705-6265-2-git-send-email-fbuihuu@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6c7e550f13f8ad82efb6a5653ae628c2543c1768", "tree": "1c994b999648fbe51ffe4312e2d6827aedd5f012", "parents": [ "35d3778a8fe3c8b4a7513565e34d3bde00ce43ec" ], "author": { "name": "Franck Bui-Huu", "email": "fbuihuu@gmail.com", "time": "Tue Nov 23 16:21:43 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:14:54 2010 +0100" }, "message": "perf: Introduce is_sampling_event()\n\nand use it when appropriate.\n\nSigned-off-by: Franck Bui-Huu \u003cfbuihuu@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1290525705-6265-1-git-send-email-fbuihuu@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6c869e772c72d509d0db243a56c205ef48a29baf", "tree": "9a290f1742526a8816f94560cb09bc0a09c910de", "parents": [ "e4e91ac410356da3a518188f371e9d3b52ee38ee", "ee6dcfa40a50fe12a3ae0fb4d2653c66c3ed6556" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:07:02 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:07:02 2010 +0100" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nConflicts:\n\tarch/x86/kernel/apic/hw_nmi.c\n\nMerge reason: Resolve conflict, queue up dependent patch.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee6dcfa40a50fe12a3ae0fb4d2653c66c3ed6556", "tree": "e77ac01a6bf2106f7a2c22f00e43cb2960d72ba5", "parents": [ "cc2067a51424dd25c10c1b1230b4222d8baec94d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 26 13:49:04 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:00:59 2010 +0100" }, "message": "perf: Fix the software context switch counter\n\nStephane noticed that because the perf_sw_event() call is inside the\nperf_event_task_sched_out() call it won\u0027t get called unless we\nhave a per-task counter.\n\nReported-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dddd3379a619a4cb8247bfd3c94ca9ae3797aa2e", "tree": "9b090784b46956d236b51c4addfcd97f575f205e", "parents": [ "02a9d03772aa1ff33a26180a2da0bfb191240eda" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Nov 24 10:05:55 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:00:56 2010 +0100" }, "message": "perf: Fix inherit vs. context rotation bug\n\nIt was found that sometimes children of tasks with inherited events had\none extra event. Eventually it turned out to be due to the list rotation\nno being exclusive with the list iteration in the inheritance code.\n\nCure this by temporarily disabling the rotation while we inherit the events.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ae51ce9061b1ddc0fde363913c932bee5b9bc5fd", "tree": "40fd3d633714d2a53fdbd2bdd172fb61232d999a", "parents": [ "072b198a4ad48bd722ec6d203d65422a4698eae7", "423478cde453eebdfcfebf4b8d378d8f5d49b853" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 20:07:12 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 20:07:12 2010 +0100" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core\n" }, { "commit": "61c32659b12c44e62de32fbf99f7e4ca783dc38b", "tree": "231c285da4178f7602deb75241b3bb5b02caf898", "parents": [ "9c0729dc8062bed96189bd14ac6d4920f3958743" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Nov 18 01:39:17 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Nov 18 14:37:40 2010 +0100" }, "message": "tracing: New flag to allow non privileged users to use a trace event\n\nThis adds a new trace event internal flag that allows them to be\nused in perf by non privileged users in case of task bound tracing.\n\nThis is desired for syscalls tracepoint because they don\u0027t leak\nglobal system informations, like some other tracepoints.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\n" }, { "commit": "8882135bcd332f294df5455747ea43ba9e6f77ad", "tree": "758f26d26750fd5007e885cc28125f7c1fa24ca6", "parents": [ "fcf48a725a176ba12aa7be64c50190deaa2f86df" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Nov 09 19:01:43 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 13:18:46 2010 +0100" }, "message": "perf: Fix owner-list vs exit\n\nOleg noticed that a perf-fd keeping a reference on the creating task\nleads to a few funny side effects.\n\nThere\u0027s two different aspects to this:\n\n - kernel based perf-events, these should not take out\n a reference on the creating task and appear on the task\u0027s\n event list since they\u0027re not bound to fds nor visible\n to userspace.\n\n - fork() and pthread_create(), these can lead to the creating\n task dying (and thus the task\u0027s event-list becomming useless)\n but keeping the list and ref alive until the event is closed.\n\nCombined they lead to malfunction of the ptrace hw_tracepoints.\n\nCure this by not considering kernel based perf_events for the\nowner-list and destroying the owner-list when the owner dies.\n\nReported-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nLKML-Reference: \u003c1289576883.2084.286.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fcf48a725a176ba12aa7be64c50190deaa2f86df", "tree": "5d611ba5b1eb4dd821c93ca2f9d08078b563305a", "parents": [ "0e2af2a9abf94b408ff70679b692a8644fed4aab", "3c502e7a0255d82621ff25d60cc816624830497e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 10:37:51 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 10:37:51 2010 +0100" }, "message": "Merge branch \u0027perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent\n" }, { "commit": "3c502e7a0255d82621ff25d60cc816624830497e", "tree": "1f30638f22ef9ed748fac1f73cb18169efe49ae7", "parents": [ "6c0aca288e726405b01dacb12cac556454d34b2a" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Nov 04 17:33:01 2010 -0500" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Nov 12 14:51:55 2010 +0100" }, "message": "perf,hw_breakpoint: Initialize hardware api earlier\n\nWhen using early debugging, the kernel does not initialize the\nhw_breakpoint API early enough and causes the late initialization of\nthe kernel debugger to fail. The boot arguments are:\n\n earlyprintk\u003dvga ekgdboc\u003dkbd kgdbwait\n\nThen simply type \"go\" at the kdb prompt and boot. The kernel will\nlater emit the message:\n\n kgdb: Could not allocate hwbreakpoints\n\nAnd at that point the kernel debugger will cease to work correctly.\n\nThe solution is to initialize the hw_breakpoint at the same time that\nall the other perf call backs are initialized instead of using a\ncore_initcall() initialization which happens well after the kernel\ndebugger can make use of hardware breakpoints.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nCC: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCC: Ingo Molnar \u003cmingo@elte.hu\u003e\nCC: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4CD3396D.1090308@windriver.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "eed01528a45dc4138e9a08064b4b6cc1a9426899", "tree": "c7b4256b4158abc74338f14ac2071ec33c52d7e6", "parents": [ "7e55055e5bb00085051ca59c570c83a820e1e0ee" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue Oct 26 16:08:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 10 22:58:39 2010 +0100" }, "message": "perf_events: Fix time tracking in samples\n\nThis patch corrects time tracking in samples. Without this patch\nboth time_enabled and time_running are bogus when user asks for\nPERF_SAMPLE_READ.\n\nOne uses PERF_SAMPLE_READ to sample the values of other counters\nin each sample. Because of multiplexing, it is necessary to know\nboth time_enabled, time_running to be able to scale counts correctly.\n\nIn this second version of the patch, we maintain a shadow\ncopy of ctx-\u003etime which allows us to compute ctx-\u003etime without\ncalling update_context_time() from NMI context. We avoid the\nissue that update_context_time() must always be called with\nctx-\u003elock held.\n\nWe do not keep shadow copies of the other event timings\nbecause if the lead event is overflowing then it is active\nand thus it\u0027s been scheduled in via event_sched_in() in\nwhich case neither tstamp_stopped, tstamp_running can be modified.\n\nThis timing logic only applies to samples when PERF_SAMPLE_READ\nis used.\n\nNote that this patch does not address timing issues related\nto sampling inheritance between tasks. This will be addressed\nin a future patch.\n\nWith this patch, the libpfm4 example task_smpl now reports\ncorrect counts (shown on 2.4GHz Core 2):\n\n$ task_smpl -p 2400000000 -e unhalted_core_cycles:u,instructions_retired:u,baclears noploop 5\nnoploop for 5 seconds\nIIP:0x000000004006d6 PID:5596 TID:5596 TIME:466,210,211,430 STREAM_ID:33 PERIOD:2,400,000,000 ENA\u003d1,010,157,814 RUN\u003d1,010,157,814 NR\u003d3\n\t2,400,000,254 unhalted_core_cycles:u (33)\n\t2,399,273,744 instructions_retired:u (34)\n\t53,340 baclears (35)\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4cc6e14b.1e07e30a.256e.5190@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d7842da470f244d258f21c5f72cd8388b3541d04", "tree": "02196f905f3c27ab9dfc85b26dbb32348d943d60", "parents": [ "9ffcfa6f1f63eeac15555b745c292eb9f59130f6" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Wed Oct 20 15:25:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 22 14:18:27 2010 +0200" }, "message": "perf_events: Fix for transaction recovery in group_sched_in()\n\nThis new version (see commit 8e5fc1a) is much simpler and ensures that\nin case of error in group_sched_in() during event_sched_in(), the\nevents up to the failed event go through regular event_sched_out().\nBut the failed event and the remaining events in the group have their\ntimings adjusted as if they had also gone through event_sched_in() and\nevent_sched_out(). This ensures timing uniformity across all events in\na group. This also takes care of the tstamp_stopped problem in case\nthe group could never be scheduled. The tstamp_stopped is updated as\nif the event had actually run.\n\nWith this patch, the following now reports correct time_enabled,\nin case the NMI watchdog is active:\n\n$ task -e unhalted_core_cycles,instructions_retired,baclears,baclears\nnoploop 1\nnoploop for 1 seconds\n\n0 unhalted_core_cycles (100.00% scaling, ena\u003d997,552,872, run\u003d0)\n0 instructions_retired (100.00% scaling, ena\u003d997,552,872, run\u003d0)\n0 baclears (100.00% scaling, ena\u003d997,552,872, run\u003d0)\n0 baclears (100.00% scaling, ena\u003d997,552,872, run\u003d0)\n\nAnd the older test case also works:\n\n$ task -einstructions_retired,baclears,baclears -e\nunhalted_core_cycles,baclears,baclears sleep 5\n\n1680885 instructions_retired (69.39% scaling, ena\u003d950756, run\u003d291006)\n 10735 baclears (69.39% scaling, ena\u003d950756, run\u003d291006)\n 10735 baclears (69.39% scaling, ena\u003d950756, run\u003d291006)\n\n 0 unhalted_core_cycles (100.00% scaling, ena\u003d817932, run\u003d0)\n 0 baclears (100.00% scaling, ena\u003d817932, run\u003d0)\n 0 baclears (100.00% scaling, ena\u003d817932, run\u003d0)\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4cbeeebc.8ee7d80a.5a28.0d5f@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9ffcfa6f1f63eeac15555b745c292eb9f59130f6", "tree": "803cc11f312da98713fdfc366b7ec79351dffa55", "parents": [ "96681fc3c9e7d1f89ab64e5eec40b6467c97680f" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Wed Oct 20 15:25:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 22 14:18:27 2010 +0200" }, "message": "perf_events: Revert: Fix transaction recovery in group_sched_in()\n\nThis patch reverts commit 8e5fc1a (perf_events: Fix transaction\nrecovery in group_sched_in()) because it had one flaw in case the\ngroup could never be scheduled. It would cause time_enabled to get\nnegative.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4cbeeeb7.0aefd80a.6e40.0e2f@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5d70f79b5ef6ea2de4f72a37b2d96e2601e40a22", "tree": "a0d6de0930ba83ecf4629c2e2e261f5eaa2d8f33", "parents": [ "888a6f77e0418b049f83d37547c209b904d30af4", "750ed158bf6c782d2813da1bca2c824365a0b777" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 21 12:54:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 21 12:54:49 2010 -0700" }, "message": "Merge branch \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (163 commits)\n tracing: Fix compile issue for trace_sched_wakeup.c\n [S390] hardirq: remove pointless header file includes\n [IA64] Move local_softirq_pending() definition\n perf, powerpc: Fix power_pmu_event_init to not use event-\u003ectx\n ftrace: Remove recursion between recordmcount and scripts/mod/empty\n jump_label: Add COND_STMT(), reducer wrappery\n perf: Optimize sw events\n perf: Use jump_labels to optimize the scheduler hooks\n jump_label: Add atomic_t interface\n jump_label: Use more consistent naming\n perf, hw_breakpoint: Fix crash in hw_breakpoint creation\n perf: Find task before event alloc\n perf: Fix task refcount bugs\n perf: Fix group moving\n irq_work: Add generic hardirq context callbacks\n perf_events: Fix transaction recovery in group_sched_in()\n perf_events: Fix bogus AMD64 generic TLB events\n perf_events: Fix bogus context time tracking\n tracing: Remove parent recording in latency tracer graph options\n tracing: Use one prologue for the preempt irqs off tracer function tracers\n ...\n" }, { "commit": "7e54a5a0b655734326dc78c2b5efc1eb35497bb6", "tree": "71346dfdb01ef387ad1aaaccbf72b3127814ce92", "parents": [ "82cd6def9806dcb6a325fb6abbc1d61388a15f6a" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 22:32:45 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:59 2010 +0200" }, "message": "perf: Optimize sw events\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "82cd6def9806dcb6a325fb6abbc1d61388a15f6a", "tree": "569ce440f8a0619adb8c3791d6b68eecdb2fd29c", "parents": [ "8b92538d84e50062560ba33adbaed7887b6e4a42" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 17:57:23 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:58 2010 +0200" }, "message": "perf: Use jump_labels to optimize the scheduler hooks\n\nTrades a call + conditional + ret for an unconditional jmp.\n\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101014203625.501657727@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d580ff8699e8811a9af37e9de4dea375401bdeec", "tree": "f2789d8a8628b856ad902c0bfbb1899e6cc67697", "parents": [ "c6be5a5cb62592d9d661899a2aa78236eb00ffa5" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 17:43:23 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:55 2010 +0200" }, "message": "perf, hw_breakpoint: Fix crash in hw_breakpoint creation\n\nhw_breakpoint creation needs to account stuff per-task to ensure there\nis always sufficient hardware resources to back these things due to\nptrace.\n\nWith the perf per pmu context changes the event initialization no\nlonger has access to the event context, for the simple reason that we\nneed to first find the pmu (result of initialization) before we can\nfind the context.\n\nThis makes hw_breakpoints unhappy, because it can no longer do per\ntask accounting, cure this by frobbing a task pointer in the event::hw\nbits for now...\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20101014203625.391543667@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c6be5a5cb62592d9d661899a2aa78236eb00ffa5", "tree": "510a7b92a65a2faf7395f6ab37be44328f0186cf", "parents": [ "e7d0bc047548d76feee6b23f7d3d9da927189a50" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 16:59:46 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:54 2010 +0200" }, "message": "perf: Find task before event alloc\n\nSo that we can pass the task pointer to the event allocation, so that\nwe can use task associated data during event initialization.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101014203625.340789919@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e7d0bc047548d76feee6b23f7d3d9da927189a50", "tree": "be1cd1fc48f6458a2efa4d0bfac53808938208dc", "parents": [ "74c3337c2fc6389d3a57a622a936036b6db6b2e8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 16:54:51 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:52 2010 +0200" }, "message": "perf: Fix task refcount bugs\n\nCurrently it looks like find_lively_task_by_vpid() takes a task ref\nand relies on find_get_context() to drop it.\n\nThe problem is that perf_event_create_kernel_counter() shouldn\u0027t be\ndropping task refs.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nLKML-Reference: \u003c20101014203625.278436085@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "74c3337c2fc6389d3a57a622a936036b6db6b2e8", "tree": "d87232b7cc19eef0f1fe0a0bb167868513819b31", "parents": [ "e360adbe29241a0194e10e20595360dd7b98a2b3" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Oct 15 11:40:29 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:51 2010 +0200" }, "message": "perf: Fix group moving\n\nMatt found we trigger the WARN_ON_ONCE() in perf_group_attach() when we take\nthe move_group path in perf_event_open().\n\nSince we cannot de-construct the group (we rely on it to move the events), we\nhave to simply ignore the double attach. The group state is context invariant\nand doesn\u0027t need changing.\n\nReported-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1287135757.29097.1368.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e360adbe29241a0194e10e20595360dd7b98a2b3", "tree": "ef5fa5f50a895096bfb25bc11b25949603158238", "parents": [ "8e5fc1a7320baf6076391607515dceb61319b36a" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Oct 14 14:01:34 2010 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:50 2010 +0200" }, "message": "irq_work: Add generic hardirq context callbacks\n\nProvide a mechanism that allows running code in IRQ context. It is\nmost useful for NMI code that needs to interact with the rest of the\nsystem -- like wakeup a task to drain buffers.\n\nPerf currently has such a mechanism, so extract that and provide it as\na generic feature, independent of perf so that others may also\nbenefit.\n\nThe IRQ context callback is generated through self-IPIs where\npossible, or on architectures like powerpc the decrementer (the\nbuilt-in timer facility) is set to generate an interrupt immediately.\n\nArchitectures that don\u0027t have anything like this get to do with a\ncallback from the timer tick. These architectures can call\nirq_work_run() at the tail of any IRQ handlers that might enqueue such\nwork (like the perf IRQ handler) to avoid undue latencies in\nprocessing the work.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nAcked-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n[ various fixes ]\nSigned-off-by: Huang Ying \u003cying.huang@intel.com\u003e\nLKML-Reference: \u003c1287036094.7768.291.camel@yhuang-dev\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8e5fc1a7320baf6076391607515dceb61319b36a", "tree": "24a5e7ac4bbd8a960fa90ce2a668b9475a3f0b16", "parents": [ "ba0cef3d149ce4db293c572bf36ed352b11ce7b9" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Fri Oct 15 16:54:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:49 2010 +0200" }, "message": "perf_events: Fix transaction recovery in group_sched_in()\n\nThe group_sched_in() function uses a transactional approach to schedule\na group of events. In a group, either all events can be scheduled or\nnone are. To schedule each event in, the function calls event_sched_in().\nIn case of error, event_sched_out() is called on each event in the group.\n\nThe problem is that event_sched_out() does not completely cancel the\neffects of event_sched_in(). Furthermore event_sched_out() changes the\nstate of the event as if it had run which is not true is this particular\ncase.\n\nThose inconsistencies impact time tracking fields and may lead to events\nin a group not all reporting the same time_enabled and time_running values.\nThis is demonstrated with the example below:\n\n$ task -eunhalted_core_cycles,baclears,baclears -e unhalted_core_cycles,baclears,baclears sleep 5\n1946101 unhalted_core_cycles (32.85% scaling, ena\u003d829181, run\u003d556827)\n 11423 baclears (32.85% scaling, ena\u003d829181, run\u003d556827)\n 7671 baclears (0.00% scaling, ena\u003d556827, run\u003d556827)\n\n2250443 unhalted_core_cycles (57.83% scaling, ena\u003d962822, run\u003d405995)\n 11705 baclears (57.83% scaling, ena\u003d962822, run\u003d405995)\n 11705 baclears (57.83% scaling, ena\u003d962822, run\u003d405995)\n\nNotice that in the first group, the last baclears event does not\nreport the same timings as its siblings.\n\nThis issue comes from the fact that tstamp_stopped is updated\nby event_sched_out() as if the event had actually run.\n\nTo solve the issue, we must ensure that, in case of error, there is\nno change in the event state whatsoever. That means timings must\nremain as they were when entering group_sched_in().\n\nTo do this we defer updating tstamp_running until we know the\ntransaction succeeded. Therefore, we have split event_sched_in()\nin two parts separating the update to tstamp_running.\n\nSimilarly, in case of error, we do not want to update tstamp_stopped.\nTherefore, we have split event_sched_out() in two parts separating\nthe update to tstamp_stopped.\n\nWith this patch, we now get the following output:\n\n$ task -eunhalted_core_cycles,baclears,baclears -e unhalted_core_cycles,baclears,baclears sleep 5\n2492050 unhalted_core_cycles (71.75% scaling, ena\u003d1093330, run\u003d308841)\n 11243 baclears (71.75% scaling, ena\u003d1093330, run\u003d308841)\n 11243 baclears (71.75% scaling, ena\u003d1093330, run\u003d308841)\n\n1852746 unhalted_core_cycles (0.00% scaling, ena\u003d784489, run\u003d784489)\n 9253 baclears (0.00% scaling, ena\u003d784489, run\u003d784489)\n 9253 baclears (0.00% scaling, ena\u003d784489, run\u003d784489)\n\nNote that the uneven timing between groups is a side effect of\nthe process spending most of its time sleeping, i.e., not enough\nevent rotations (but that\u0027s a separate issue).\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4cb86b4c.41e9d80a.44e9.3e19@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c530ccd9a1864a44a7ff35826681229ce9f2357a", "tree": "51cb7ae96aa2b6e144686e850255344b2d94b888", "parents": [ "f92f6e6ee35d2779aa62e70f78ad8e1cd417eb52" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Fri Oct 15 15:26:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 18 19:58:46 2010 +0200" }, "message": "perf_events: Fix bogus context time tracking\n\nYou can only call update_context_time() when the context\nis active, i.e., the thread it is attached to is still running.\n\nHowever, perf_event_read() can be called even when the context\nis inactive, e.g., user read() the counters. The call to\nupdate_context_time() must be conditioned on the status of\nthe context, otherwise, bogus time_enabled, time_running may\nbe returned. Here is an example on AMD64. The task program\nis an example from libpfm4. The -p prints deltas every 1s.\n\n$ task -p -e cpu_clk_unhalted sleep 5\n 2,266,610 cpu_clk_unhalted (0.00% scaling, ena\u003d2,158,982, run\u003d2,158,982)\n\t 0 cpu_clk_unhalted (0.00% scaling, ena\u003d2,158,982, run\u003d2,158,982)\n\t 0 cpu_clk_unhalted (0.00% scaling, ena\u003d2,158,982, run\u003d2,158,982)\n\t 0 cpu_clk_unhalted (0.00% scaling, ena\u003d2,158,982, run\u003d2,158,982)\n\t 0 cpu_clk_unhalted (0.00% scaling, ena\u003d2,158,982, run\u003d2,158,982)\n5,242,358,071 cpu_clk_unhalted (99.95% scaling, ena\u003d5,000,359,984, run\u003d2,319,270)\n\nWhereas if you don\u0027t read deltas, e.g., no call to perf_event_read() until\nthe process terminates:\n\n$ task -e cpu_clk_unhalted sleep 5\n 2,497,783 cpu_clk_unhalted (0.00% scaling, ena\u003d2,376,899, run\u003d2,376,899)\n\nNotice that time_enable, time_running are bogus in the first example\ncausing bogus scaling.\n\nThis patch fixes the problem, by conditionally calling update_context_time()\nin perf_event_read().\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c4cb856dc.51edd80a.5ae0.38fb@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6268464b370e234e0255330190f9bd5d19386ad7", "tree": "5742641092ce64227dd2086d78baaede57da1f80", "parents": [ "7df01d96b295e400167e78061b81d4c91630b12d", "0fdf13606b67f830559abdaad15980c7f4f05ec4" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Oct 15 12:45:00 2010 +0200" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Fri Oct 15 12:45:00 2010 +0200" }, "message": "Merge remote branch \u0027tip/perf/core\u0027 into oprofile/core\n\nConflicts:\n\tarch/arm/oprofile/common.c\n\tkernel/perf_event.c\n" }, { "commit": "ad0cf3478de8677f720ee06393b3147819568d6a", "tree": "cd007170b0f20f724924ff53897bf534847e14c4", "parents": [ "29979aa8bd69becd94cbad59093807a417ce2a9e" ], "author": { "name": "John Blackwood", "email": "john.blackwood@ccur.com", "time": "Tue Sep 28 18:03:11 2010 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 12 11:45:01 2010 +0200" }, "message": "perf: Fix incorrect copy_from_user() usage\n\nperf events: repair incorrect use of copy_from_user\n\nThis makes the perf_event_period() return 0 instead of\n-EFAULT on success.\n\nSigned-off-by: John Blackwood\u003cjohn.blackwood@ccur.com\u003e\nSigned-off-by: Joe Korty \u003cjoe.korty@ccur.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20100928220311.GA18145@tsunami.ccur.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ad0f7cfaa85fc033523a09ab1f3dd6b8ded3dff5", "tree": "2565121e4b9945d953e02c77a2e53065b3789aa4", "parents": [ "86c8c04792f152c5469023885510140dd34817bc", "c7a27aa4652c63172489a73f3961455650a79a7f" ], "author": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Mon Oct 11 19:26:50 2010 +0200" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Mon Oct 11 19:26:50 2010 +0200" }, "message": "Merge branch \u0027oprofile/urgent\u0027 (early part) into oprofile/perf\n" }, { "commit": "84c7991059c9c4530cc911137c5bf508a41ed129", "tree": "1fc9f7c8139f680f3d899328128a38e5087c30c7", "parents": [ "3bf101ba42a1c89b5afbc7492e7647dae5e18735" ], "author": { "name": "Matt Fleming", "email": "matt@console-pimps.org", "time": "Sun Oct 03 21:41:13 2010 +0100" }, "committer": { "name": "Robert Richter", "email": "robert.richter@amd.com", "time": "Mon Oct 11 17:45:49 2010 +0200" }, "message": "perf: New helper function for pmu name\n\nIntroduce perf_pmu_name() helper function that returns the name of the\npmu. This gives us a generic way to get the name of a pmu regardless of\nhow an architecture identifies it internally.\n\nSigned-off-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Robert Richter \u003crobert.richter@amd.com\u003e\n" }, { "commit": "540804b5c52065a87d826f7714b18a3ec0b269f9", "tree": "71144b372d615c9c188860f9eaea062bdb8cb1c5", "parents": [ "d6dad199a10423ce37b8bfec1f055c380dc4a3d5" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Mon Oct 04 12:00:02 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 04 12:47:20 2010 +0200" }, "message": "perf_events: Fix invalid pointer when pid is invalid\n\nThis patch fixes an error in perf_event_open() when the pid\nprovided by the user is invalid. find_lively_task_by_vpid()\ndoes not return NULL on error but an error code. Without the\nfix the error code was silently passed to find_get_context()\nwhich would eventually cause a invalid pointer dereference.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nCc: peterz@infradead.org\nCc: paulus@samba.org\nCc: davem@davemloft.net\nCc: fweisbec@gmail.com\nCc: perfmon2-devel@lists.sf.net\nCc: eranian@gmail.com\nCc: robert.richter@amd.com\nLKML-Reference: \u003c4ca9a5d1.e8e9d80a.3dbb.ffff8f2e@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "41945f6ccf1e86f87fddf6b32db9cf431c05fb54", "tree": "cf64d47bfff06ff4560efcaa23a067fa99db34dd", "parents": [ "8b8e2ec1eeca7f6941bc81cefc9663018d6ceb57" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 16 19:17:24 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 21 13:55:44 2010 +0200" }, "message": "perf: Avoid RCU vs preemption assumptions\n\nThe per-pmu per-cpu context patch converted things from\nget_cpu_var() to this_cpu_ptr(), but that only works if\nrcu_read_lock() actually disables preemption, and since\nthere is no such guarantee, we need to fix that.\n\nUse the newly introduced {get,put}_cpu_ptr().\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nLKML-Reference: \u003c20100917093009.308453028@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e9d2b064149ff7ef4acbc65a1b9374ac8b218d3e", "tree": "6ce885c6052a6e05046b9937376107e4bcf378fe", "parents": [ "917bdd1c9b7b0f4c22f2504c2f0c1074c8ab9df7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Sep 17 11:28:50 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 17 12:48:48 2010 +0200" }, "message": "perf: Undo the per cpu-context timer stuff\n\nRevert the timer per cpu-context timers because of unfortunate\nnohz interaction. Fixing that would have been somewhat ugly, so\ngo back to driving things from the regular tick. Provide a\njiffies interval feature for people who want slower rotations.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nLKML-Reference: \u003c20100917093009.519845633@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "917bdd1c9b7b0f4c22f2504c2f0c1074c8ab9df7", "tree": "63b408a2b5951580d5c1bba7d64932ddee2c6d12", "parents": [ "b04243ef7006cda301819f54ee7ce0a3632489e3" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Sep 17 11:28:49 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 17 12:48:48 2010 +0200" }, "message": "perf: Fix perf_event_exit_cpu_context()\n\nUse the right cpu-context.. spotted by preempt warning on\nhot-unplug\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nLKML-Reference: \u003c20100917093009.461794357@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b04243ef7006cda301819f54ee7ce0a3632489e3", "tree": "e8e83c53d40dce08ad5bfc37ec1e58b3a5aa7adc", "parents": [ "d14b12d7adbf214f33eb59f800b5c3d5ed9268e8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Sep 17 11:28:48 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 17 12:48:48 2010 +0200" }, "message": "perf: Complete software pmu grouping\n\nAside from allowing software events into a !software group,\nallow adding !software events to pure software groups.\n\nOnce we\u0027ve moved the software group and attached the first\n!software event, the group will no longer be a pure software\ngroup and hence no longer be eligible for movement, at which\npoint the straight ctx comparison is correct again.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c20100917093009.410784731@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d14b12d7adbf214f33eb59f800b5c3d5ed9268e8", "tree": "005705157545c70db6b751f38ae28702714fb1ed", "parents": [ "74704ac6ea402d50c9543cb28247e6d9f521f7ae" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Fri Sep 17 11:28:47 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 17 12:48:47 2010 +0200" }, "message": "perf_events: Fix broken event grouping\n\nEvents were not grouped anymore. The reason was that in\nperf_event_open(), the field event-\u003egroup_leader was\ninitialized before the function looked up the group_fd\nto find the event leader. This patch fixes this by\nreordering the code correctly.\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nLKML-Reference: \u003c20100917093009.360420946@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "38a81da2205f94e8a2a834b51a6b99c91fc7c2e8", "tree": "5227c665f37d1c472608a44aaad0a04be68befb2", "parents": [ "2ebd4ffb6d0cb877787b1e42be8485820158857e" ], "author": { "name": "Matt Helsley", "email": "matthltc@us.ibm.com", "time": "Mon Sep 13 13:01:20 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 15 10:44:00 2010 +0200" }, "message": "perf events: Clean up pid passing\n\nThe kernel perf event creation path shouldn\u0027t use find_task_by_vpid()\nbecause a vpid exists in a specific namespace. find_task_by_vpid() uses\ncurrent\u0027s pid namespace which isn\u0027t always the correct namespace to use\nfor the vpid in all the places perf_event_create_kernel_counter() (and\nthus find_get_context()) is called.\n\nThe goal is to clean up pid namespace handling and prevent bugs like:\n\n\thttps://bugzilla.kernel.org/show_bug.cgi?id\u003d17281\n\nInstead of using pids switch find_get_context() to use task struct\npointers directly. The syscall is responsible for resolving the pid to\na task struct. This moves the pid namespace resolution into the syscall\nmuch like every other syscall that takes pid parameters.\n\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Robin Green \u003cgreenrd@greenrd.org\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Mahesh Salgaonkar \u003cmahesh@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003ca134e5e392ab0204961fd1a62c84a222bf5874a9.1284407763.git.matthltc@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2ebd4ffb6d0cb877787b1e42be8485820158857e", "tree": "21db710a8f3de28f9554674e947da796a23d2e92", "parents": [ "d958077d007d98125766d11e82da2fd6497b91d6" ], "author": { "name": "Matt Helsley", "email": "matthltc@us.ibm.com", "time": "Mon Sep 13 13:01:19 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 15 10:44:00 2010 +0200" }, "message": "perf events: Split out task search into helper\n\nSplit out the code which searches for non-exiting tasks into its own\nhelper. Creating this helper not only makes the code slightly more\nreadable it prepares to move the search out of find_get_context() in\na subsequent commit.\n\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Robin Green \u003cgreenrd@greenrd.org\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Mahesh Salgaonkar \u003cmahesh@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003c561205417b450b8a4bf7488374541d64b4690431.1284407762.git.matthltc@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0c67b40872326a5340cab51d79a192a5fbaeb484", "tree": "e92b420dcb1375e159842d8ffa03a5230976ab3a", "parents": [ "cde8e88498c8de69271fcb6d4dd974979368fa67" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 13 11:15:58 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 13 17:08:42 2010 +0200" }, "message": "perf: Fix free_event()\n\nWith the context rework stuff we can actually end up freeing an event\nbefore it gets attached to a context.\n\nReported-by: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cde8e88498c8de69271fcb6d4dd974979368fa67", "tree": "34eb745cc6f3e5a5dbe0918f4920424be70bcfff", "parents": [ "b0b2072df3b544f56b90173c2cde7a374c51546b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 13 11:06:55 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 13 17:08:42 2010 +0200" }, "message": "perf: Sanitize the RCU logic\n\nSimplify things and simply synchronize against two RCU variants for\nPMU unregister -- we don\u0027t care about performance, its module unload\nif anything.\n\nReported-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e5f4d3394a52ac351f1a479fe136d92fa5228eff", "tree": "57adeb66c5e98bf86613c15295e07cbb07952be3", "parents": [ "cee010ec5211b96f33c5c2208f5c14ebb04b634a" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Sep 10 17:38:06 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 10 17:41:55 2010 +0200" }, "message": "perf: Fix perf_init_event()\n\nWe ought to return -ENOENT when non of the registered PMUs\nrecognise the requested event.\n\nThis fixes a boot crash that occurs if no PMU is available\nbut the NMI watchdog tries to register an event.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cee010ec5211b96f33c5c2208f5c14ebb04b634a", "tree": "dae35fd772d7e18db94b320a0ffc97e55e719d0e", "parents": [ "3b8fad3e2f5f69bfd8e42d099ca8582fb2342edf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Sep 10 12:51:54 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 10 16:24:33 2010 +0200" }, "message": "perf: Ensure we call add_event_to_ctx() with the right locks held\n\nEven though we call it from the inherit path, where the child is\nnot yet accessible, we need to hold ctx-\u003elock, add_event_to_ctx()\nassumes IRQs are disabled.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4e231c7962ce711c7d8c2a4dc23ecd1e8fc28363", "tree": "05af30e5c2f1084d8e77c89f0e55beaafa2194c0", "parents": [ "1b9a644fece117cfa5474a2388d6b89d1baf8ddf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 09 21:01:59 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 21:07:09 2010 +0200" }, "message": "perf: Fix up delayed_put_task_struct()\n\nI missed a perf_event_ctxp user when converting it to an array. Pull this\nlast user into perf_event.c as well and fix it up.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1b9a644fece117cfa5474a2388d6b89d1baf8ddf", "tree": "c89be6de269578501a365f7526a81fb64cb6ba93", "parents": [ "89a1e18731959e9953fae15ddc1a983eb15a4f19" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 07 18:32:22 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:34 2010 +0200" }, "message": "perf: Optimize context ops\n\nAssuming we don\u0027t mix events of different pmus onto a single context\n(with the exeption of software events inside a hardware group) we can\nnow assume that all events on a particular context belong to the same\npmu, hence we can disable the pmu for the entire context operations.\n\nThis reduces the amount of hardware writes.\n\nThe exception for swevents comes from the fact that the sw pmu disable\nis a nop.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "89a1e18731959e9953fae15ddc1a983eb15a4f19", "tree": "5a52e77acb23f47254c94e23eb6ed35a422fce1d", "parents": [ "8dc85d547285668e509f86c177bcd4ea055bcaaf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 07 17:34:50 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:34 2010 +0200" }, "message": "perf: Provide a separate task context for swevents\n\nSince software events are always schedulable, mixing them up with\nhardware events (who are not) can lead to funny scheduling oddities.\n\nGiving them their own context solves this.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8dc85d547285668e509f86c177bcd4ea055bcaaf", "tree": "5474dd6c31952b342f0a3f1bcec09e3049129264", "parents": [ "eb184479874238393ac186c4e054d24311c34aaa" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 02 16:50:03 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:33 2010 +0200" }, "message": "perf: Multiple task contexts\n\nProvide the infrastructure for multiple task contexts.\n\nA more flexible approach would have resulted in more pointer chases\nin the scheduling hot-paths. This approach has the limitation of a\nstatic number of task contexts.\n\nSince I expect most external PMUs to be system wide, or at least node\nwide (as per the intel uncore unit) they won\u0027t actually need a task\ncontext.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eb184479874238393ac186c4e054d24311c34aaa", "tree": "ac7206becfb3e0d18600252d8f5aa15478c32390", "parents": [ "97dee4f3206622f31396dede2b5ddb8670458f56" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 07 15:55:13 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:33 2010 +0200" }, "message": "perf: Clean up perf_event_context allocation\n\nUnify the two perf_event_context allocation sites.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "97dee4f3206622f31396dede2b5ddb8670458f56", "tree": "0698df23dc32aa44cfc75968163825841c534160", "parents": [ "108b02cfce04ee90b0a07ee0b104baffd39f5934" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 07 15:35:33 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:33 2010 +0200" }, "message": "perf: Move some code around\n\nMove all inherit code near each other.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "108b02cfce04ee90b0a07ee0b104baffd39f5934", "tree": "e209d5fe01cda90df2cc0241c6247fd934cc5087", "parents": [ "b5ab4cd563e7ab49b27957704112a8ecade54e1f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 06 14:32:03 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:32 2010 +0200" }, "message": "perf: Per-pmu-per-cpu contexts\n\nAllocate per-cpu contexts per pmu.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5ab4cd563e7ab49b27957704112a8ecade54e1f", "tree": "a5d1194e001a1203c679e1f0014d3b40118a725d", "parents": [ "b28ab83c595e767f2028276b7398d17f2253cec0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 06 16:32:21 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:32 2010 +0200" }, "message": "perf: Per cpu-context rotation timer\n\nGive each cpu-context its own timer so that it is a self contained\nentity, this eases the way for per-pmu-per-cpu contexts as well as\nprovides the basic infrastructure to allow different rotation\ntimes per pmu.\n\nThings to look at:\n - folding the tick and these TICK_NSEC timers\n - separate task context rotation\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b28ab83c595e767f2028276b7398d17f2253cec0", "tree": "ae52b2d4c10d1317ec7a5906bea56847e95b5f43", "parents": [ "c3f00c70276d8ae82578c8b773e2db657f69a478" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 06 14:48:15 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:32 2010 +0200" }, "message": "perf: Remove the swevent hash-table from the cpu context\n\nSeparate the swevent hash-table from the cpu_context bits in\npreparation for per pmu cpu contexts.\n\nThis keeps the swevent hash a global entity.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c3f00c70276d8ae82578c8b773e2db657f69a478", "tree": "d941c7ffd4ca6918140690023a2611be3b055006", "parents": [ "15ac9a395a753cb28c674e7ea80386ffdff21785" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Aug 18 14:37:15 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:31 2010 +0200" }, "message": "perf: Separate find_get_context() from event initialization\n\nSeparate find_get_context() from the event allocation and\ninitialization so that we may make find_get_context() depend\non the event pmu in a later patch.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "15ac9a395a753cb28c674e7ea80386ffdff21785", "tree": "63879e3031a6ed8e372ffd254ef97ff703a4d478", "parents": [ "a4eaf7f14675cb512d69f0c928055e73d0c6d252" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 06 15:51:45 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:31 2010 +0200" }, "message": "perf: Remove the sysfs bits\n\nNeither the overcommit nor the reservation sysfs parameter were\nactually working, remove them as they\u0027ll only get in the way.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a4eaf7f14675cb512d69f0c928055e73d0c6d252", "tree": "e8a0f631fc28d4bd9becd2e9e2c71743c64ee3ec", "parents": [ "fa407f35e0298d841e4088f95a7f9cf6e725c6d5" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Jun 16 14:37:10 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:30 2010 +0200" }, "message": "perf: Rework the PMU methods\n\nReplace pmu::{enable,disable,start,stop,unthrottle} with\npmu::{add,del,start,stop}, all of which take a flags argument.\n\nThe new interface extends the capability to stop a counter while\nkeeping it scheduled on the PMU. We replace the throttled state with\nthe generic stopped state.\n\nThis also allows us to efficiently stop/start counters over certain\ncode paths (like IRQ handlers).\n\nIt also allows scheduling a counter without it starting, allowing for\na generic frozen state (useful for rotating stopped counters).\n\nThe stopped state is implemented in two different ways, depending on\nhow the architecture implemented the throttled state:\n\n 1) We disable the counter:\n a) the pmu has per-counter enable bits, we flip that\n b) we program a NOP event, preserving the counter state\n\n 2) We store the counter state and ignore all read/overflow events\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa407f35e0298d841e4088f95a7f9cf6e725c6d5", "tree": "8ffb9141278688835de02e1940a8535c54a87cd7", "parents": [ "ad5133b7030d04ce7701aa7cbe98f561347c79c2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Jun 24 12:35:12 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:30 2010 +0200" }, "message": "perf: Shrink hw_perf_event\n\nUse hw_perf_event::period_left instead of hw_perf_event::remaining\nand win back 8 bytes.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ad5133b7030d04ce7701aa7cbe98f561347c79c2", "tree": "b0593f2cdc40432ad2d91c5eaa9485df328ab97b", "parents": [ "33696fc0d141bbbcb12f75b69608ea83282e3117" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Jun 15 12:22:39 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:30 2010 +0200" }, "message": "perf: Default PMU ops\n\nProvide default implementations for the pmu txn methods, this\nallows us to remove some conditional code.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "33696fc0d141bbbcb12f75b69608ea83282e3117", "tree": "72e08dba377d57eb7dd8c08a937a6de10e8af9c4", "parents": [ "24cd7f54a0d47e1d5b3de29e2456bfbd2d8447b7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Jun 14 08:49:00 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:29 2010 +0200" }, "message": "perf: Per PMU disable\n\nChanges perf_disable() into perf_pmu_disable().\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "24cd7f54a0d47e1d5b3de29e2456bfbd2d8447b7", "tree": "a37d3a4cb101e3f67635a1920f447c9e9e8d8ab2", "parents": [ "9ed6060d286b1eb55974d09080f442f809408c42" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 17:32:03 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:29 2010 +0200" }, "message": "perf: Reduce perf_disable() usage\n\nSince the current perf_disable() usage is only an optimization,\nremove it for now. This eases the removal of the __weak\nhw_perf_enable() interface.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9ed6060d286b1eb55974d09080f442f809408c42", "tree": "529961474ca96bef34ec0b75e35fe991aee0e80d", "parents": [ "b0a873ebbf87bf38bf70b5e39a7cadc96099fa13" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 17:36:35 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:28 2010 +0200" }, "message": "perf: Unindent labels\n\nFixup random annoying style bits.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b0a873ebbf87bf38bf70b5e39a7cadc96099fa13", "tree": "63ab672b847aed295f99b9b2a3bbcfd5d3d35bd9", "parents": [ "51b0fe39549a04858001922919ab355dee9bdfcf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 13:35:08 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:28 2010 +0200" }, "message": "perf: Register PMU implementations\n\nSimple registration interface for struct pmu, this provides the\ninfrastructure for removing all the weak functions.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "51b0fe39549a04858001922919ab355dee9bdfcf", "tree": "024768dd0c87e890edf76e129820ea0cdf16a257", "parents": [ "2aa61274efb9f532deaebc9812675a27af1994cb" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 13:35:57 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:46:27 2010 +0200" }, "message": "perf: Deconstify struct pmu\n\nsed -ie \u0027s/const struct pmu\\\u003e/struct pmu/g\u0027 `git grep -l \"const struct pmu\\\u003e\"`\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nCc: stephane eranian \u003ceranian@googlemail.com\u003e\nCc: Robert Richter \u003crobert.richter@amd.com\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@gmail.com\u003e\nCc: Lin Ming \u003cming.m.lin@intel.com\u003e\nCc: Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nCc: Deng-Cheng Zhu \u003cdengcheng.zhu@gmail.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Michael Cree \u003cmcree@orcon.net.nz\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2aa61274efb9f532deaebc9812675a27af1994cb", "tree": "c2f70525dc152e0ddce60f1a3021473cc6a3f298", "parents": [ "359d5106a2ff4ffa2ba129ec8f54743c341dabfc", "5e11637e2c929e34dcc0fbbfb48bdb638937701a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:40:06 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:40:08 2010 +0200" }, "message": "Merge branch \u0027perf/urgent\u0027 into perf/core\n\nMerge reason: Pick up pending fixes before applying dependent new changes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5e11637e2c929e34dcc0fbbfb48bdb638937701a", "tree": "ed782662362ee0ea5ac888588664aeb97e6f1312", "parents": [ "9cb627d5f38830ca19aa0dca52d1d3a633018bf7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 13:35:08 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:38:52 2010 +0200" }, "message": "perf: Fix CPU hotplug\n\nSince we have UP_PREPARE, we should also have UP_CANCELED.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa66f07aa1f0950e1dc78b7ab39728b3f8aa77a1", "tree": "4ad4612c2fc07f159e192fae9145f9d87a697592", "parents": [ "5225c45899e872383ca39f5533d28ec63c54b39e" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Aug 26 16:40:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 30 12:16:55 2010 +0200" }, "message": "perf_events: Fix time tracking for events with pid !\u003d -1 and cpu !\u003d -1\n\nPer-thread events with a cpu filter, i.e., cpu !\u003d -1, were not\nreporting correct timings when the thread never ran on the\nmonitored cpu. The time enabled was reported as a negative\nvalue.\n\nThis patch fixes the problem by updating tstamp_stopped,\ntstamp_running in event_sched_out() for events with filters and\nwhich are marked as INACTIVE.\n\nThe function group_sched_out() is modified to systematically\ncall into event_sched_out() to avoid duplicating the timing\nadjustment code twice.\n\nWith the patch, I now get:\n\n$ task_cpu -i -e unhalted_core_cycles,unhalted_core_cycles\nnoploop 2 noploop for 2 seconds\nCPU0 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU0 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU1 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU1 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU2 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU2 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU3 4,747,990,931 unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d1,991,136,594)\nCPU3 4,747,990,931 unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d1,991,136,594)\n\nSigned-off-by: Stephane Eranian \u003ceranian@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus@samba.org\nCc: davem@davemloft.net\nCc: fweisbec@gmail.com\nCc: perfmon2-devel@lists.sf.net\nCc: eranian@google.com\nLKML-Reference: \u003c4c76802d.aae9d80a.115d.70fe@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c8710ad38900153af7a3e6762e99c062cfa46443", "tree": "a0c0632274c4eb72f51e99a5861f71cffe65ea60", "parents": [ "6016ee13db518ab1cd0cbf43fc2ad5712021e338", "86397dc3ccfc0e17b7550d05eaf15fe91f6498dd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 19 12:48:09 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 19 12:48:09 2010 +0200" }, "message": "Merge branch \u0027tip/perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core\n" }, { "commit": "7ae07ea3a48d30689ee037cb136bc21f0b37d8ae", "tree": "2cb895a0794bcb2e45a4f48ef7e93302c1f6332c", "parents": [ "927c7a9e92c4f69097a6e9e086d11fc2f8a5b40b" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Aug 14 20:45:13 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 19 01:32:53 2010 +0200" }, "message": "perf: Humanize the number of contexts\n\nInstead of hardcoding the number of contexts for the recursions\nbarriers, define a cpp constant to make the code more\nself-explanatory.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\n" }, { "commit": "927c7a9e92c4f69097a6e9e086d11fc2f8a5b40b", "tree": "d98bde726caf6b27d465852b5683cf08485df007", "parents": [ "f72c1a931e311bb7780fee19e41a89ac42cab50e" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 01 16:20:36 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 19 01:32:31 2010 +0200" }, "message": "perf: Fix race in callchains\n\nNow that software events don\u0027t have interrupt disabled anymore in\nthe event path, callchains can nest on any context. So seperating\nnmi and others contexts in two buffers has become racy.\n\nFix this by providing one buffer per nesting level. Given the size\nof the callchain entries (2040 bytes * 4), we now need to allocate\nthem dynamically.\n\nv2: Fixed put_callchain_entry call after recursion.\n Fix the type of the recursion, it must be an array.\n\nv3: Use a manual pr cpu allocation (temporary solution until NMIs\n can safely access vmalloc\u0027ed memory).\n Do a better separation between callchain reference tracking and\n allocation. Make the \"put\" path lockless for non-release cases.\n\nv4: Protect the callchain buffers with rcu.\n\nv5: Do the cpu buffers allocations node affine.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nTested-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Borislav Petkov \u003cbp@amd64.org\u003e\n" }, { "commit": "f72c1a931e311bb7780fee19e41a89ac42cab50e", "tree": "470aa111c535af47d8444a249c83b5d360806e69", "parents": [ "56962b4449af34070bb1994621ef4f0265eed4d8" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 01 02:31:21 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 19 01:32:11 2010 +0200" }, "message": "perf: Factorize callchain context handling\n\nStore the kernel and user contexts from the generic layer instead\nof archs, this gathers some repetitive code.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nTested-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Borislav Petkov \u003cbp@amd64.org\u003e\n" }, { "commit": "56962b4449af34070bb1994621ef4f0265eed4d8", "tree": "b4c5dfee35d272c71cba80e75a51cb3e7070e430", "parents": [ "70791ce9ba68a5921c9905ef05d23f62a90bc10c" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Jun 30 23:03:51 2010 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Aug 19 01:30:59 2010 +0200" }, "message": "perf: Generalize some arch callchain code\n\n- Most archs use one callchain buffer per cpu, except x86 that needs\n to deal with NMIs. Provide a default perf_callchain_buffer()\n implementation that x86 overrides.\n\n- Centralize all the kernel/user regs handling and invoke new arch\n handlers from there: perf_callchain_user() / perf_callchain_kernel()\n That avoid all the user_mode(), current-\u003emm checks and so...\n\n- Invert some parameters in perf_callchain_*() helpers: entry to the\n left, regs to the right, following the traditional (dst, src).\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nTested-by: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Borislav Petkov \u003cbp@amd64.org\u003e\n" }, { "commit": "c4efd6b569b2646e1346a08a4c40286f8bcb5f11", "tree": "bf33e8594ac4e628cc95f2ef25513788b8273601", "parents": [ "4aed2fd8e3181fea7c09ba79cf64e7e3f4413bf9", "0bcfe75807944106a3aa655a54bb610d62f3a7f5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:39:22 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 06 09:39:22 2010 -0700" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)\n sched: Use correct macro to display sched_child_runs_first in /proc/sched_debug\n sched: No need for bootmem special cases\n sched: Revert nohz_ratelimit() for now\n sched: Reduce update_group_power() calls\n sched: Update rq-\u003eclock for nohz balanced cpus\n sched: Fix spelling of sibling\n sched, cpuset: Drop __cpuexit from cpu hotplug callbacks\n sched: Fix the racy usage of thread_group_cputimer() in fastpath_timer_check()\n sched: run_posix_cpu_timers: Don\u0027t check -\u003eexit_state, use lock_task_sighand()\n sched: thread_group_cputime: Simplify, document the \"alive\" check\n sched: Remove the obsolete exit_state/signal hacks\n sched: task_tick_rt: Remove the obsolete -\u003esignal !\u003d NULL check\n sched: __sched_setscheduler: Read the RLIMIT_RTPRIO value lockless\n sched: Fix comments to make them DocBook happy\n sched: Fix fix_small_capacity\n powerpc: Exclude arch_sd_sibiling_asym_packing() on UP\n powerpc: Enable asymmetric SMT scheduling on POWER7\n sched: Add asymmetric group packing option for sibling domain\n sched: Fix capacity calculations for SMT4\n sched: Change nohz idle load balancing logic to push model\n ...\n" }, { "commit": "4cb6948e5365ab874bb71ac35fb6b7c6dd305765", "tree": "0af0f44cce9043f3d66b7259536c6c99b790d9b0", "parents": [ "89275d59b572b92b1e2f6ddb63c49deecb801ff9", "7e27d6e778cd87b6f2415515d7127eba53fe5d02" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 18 10:46:31 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 18 10:46:35 2010 +0200" }, "message": "Merge commit \u0027v2.6.35-rc3\u0027 into sched/core\n\nMerge reason: Update to the latest -rc.\n" }, { "commit": "c726b61c6a5acc54c55ed7a0e7638cc4c5a100a8", "tree": "3f44aa013d31d34951e9610e79ff14c1148ad6ac", "parents": [ "7be7923633a142402266d642ccebf74f556a649b", "018378c55b03f88ff513aba4e0e93b8d4a9cf241" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 18:55:20 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 18:55:57 2010 +0200" }, "message": "Merge branch \u0027perf/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core\n" }, { "commit": "e78505958cf123048fb48cb56b79cebb8edd15fb", "tree": "3688d124cdc906cbe9f6587c8671ba0a14c95262", "parents": [ "a6e6dea68c18f705957573ee5596097c7e82d0e5" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 14:43:08 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:37 2010 +0200" }, "message": "perf: Convert perf_event to local_t\n\nSince now all modification to event-\u003ecount (and -\u003eprev_count\nand -\u003eperiod_left) are local to a cpu, change then to local64_t so we\navoid the LOCK\u0027ed ops.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a6e6dea68c18f705957573ee5596097c7e82d0e5", "tree": "2e8d302800fa4c57cc6604d856e6d680d3ee120f", "parents": [ "b5e58793c7a8ec35e72ea6ec6c353499dd189809" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 14:27:58 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:37 2010 +0200" }, "message": "perf: Add perf_event::child_count\n\nOnly child counters adding back their values into the parent counter\nare responsible for cross-cpu updates to event-\u003ecount.\n\nSo if we pull that out into a new child_count variable, we get an\nevent-\u003ecount that is only modified locally.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5e58793c7a8ec35e72ea6ec6c353499dd189809", "tree": "b416db400eb1f67c0b078bd15d60aa9a561d7edf", "parents": [ "1996bda2a42480c275656233e631ee0966574be4" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 14:43:12 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:36 2010 +0200" }, "message": "perf: Add perf_event_count()\n\nCreate a helper function for those sites that want to read the event count.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d57e34fdd60be7ffd0b1d86bfa1a553df86b7172", "tree": "f6044a0b2c2a757d56ad47e88cfa662bfc5bf424", "parents": [ "ca5135e6b4a3cbc7e187737520fbc4b508f6f7a2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 28 19:41:35 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:35 2010 +0200" }, "message": "perf: Simplify the ring-buffer logic: make perf_buffer_alloc() do everything needed\n\nCurrently there are perf_buffer_alloc() + perf_buffer_init() + some\nseparate bits, fold it all into a single perf_buffer_alloc() and only\nleave the attachment to the event separate.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ca5135e6b4a3cbc7e187737520fbc4b508f6f7a2", "tree": "b9bf928206d397f9c0474b1d2ea8f777cf4d22d7", "parents": [ "68aa00ac0a82e9a876c799bf6be7622b8f1c8517" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 28 19:33:23 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:35 2010 +0200" }, "message": "perf: Rename perf_mmap_data to perf_buffer\n\nRename to clarify code.\n\ns/perf_mmap_data/perf_buffer/g and selective s/data/buffer/g\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8d2cacbbb8deadfae78aa16e4e1ee619bdd7019e", "tree": "79fcb319d1c99e348b0a04056e016c85c3666b35", "parents": [ "3af9e859281bda7eb7c20b51879cf43aa788ac2e" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 25 17:49:05 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:34 2010 +0200" }, "message": "perf: Cleanup {start,commit,cancel}_txn details\n\nClarify some of the transactional group scheduling API details\nand change it so that a successfull -\u003ecommit_txn also closes\nthe transaction.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1274803086.5882.1752.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3af9e859281bda7eb7c20b51879cf43aa788ac2e", "tree": "cddb7fc788abc826551e12bba5892c6b26942392", "parents": [ "8ed92280be013180e24c84456ab6babcb07037cc" ], "author": { "name": "Eric B Munson", "email": "ebmunson@us.ibm.com", "time": "Tue May 18 15:30:49 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:34 2010 +0200" }, "message": "perf: Add non-exec mmap() tracking\n\nAdd the capacility to track data mmap()s. This can be used together\nwith PERF_SAMPLE_ADDR for data profiling.\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\n[Updated code for stable perf ABI]\nSigned-off-by: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003c1274193049-25997-1-git-send-email-ebmunson@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8ed92280be013180e24c84456ab6babcb07037cc", "tree": "5b0826219599532cc1a17ed823bd2358a2bef666", "parents": [ "ecc55f84b2e9741f29daa787ded93986df6cbe17" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 15:13:59 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:33 2010 +0200" }, "message": "perf, trace: Remove superfluous rcu_read_lock()\n\n__DO_TRACE() already calls the callbacks under rcu_read_lock_sched(),\nwhich is sufficient for our needs, avoid doing it again.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ecc55f84b2e9741f29daa787ded93986df6cbe17", "tree": "9da1012eb14faf8133e7e432b0da581ed55de6ee", "parents": [ "e768aee89c687a50e6a2110e30c5cae1fbf0d2da" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 21 15:11:34 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 09 11:12:33 2010 +0200" }, "message": "perf, trace: Inline perf_swevent_put_recursion_context()\n\nInline perf_swevent_put_recursion_context into perf_tp_event(), this\nshrinks the per trace template code footprint and saves a function\ncall.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "c676329abb2b8359d9a5d734dec0c81779823fd6" }