)]}' { "log": [ { "commit": "ca2b84cb3c4a0d4d2143b46ec072cdff5d1b3b87", "tree": "7163bac040f11c444b24cab53c4a784df73fa4f3", "parents": [ "ac44021fccd8f1f2b267b004f23a2e8d7ef05f7b" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Mon Mar 23 15:12:24 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Apr 03 12:23:06 2009 +0200" }, "message": "kmemtrace: use tracepoints\n\nkmemtrace now uses tracepoints instead of markers. We no longer need to\nuse format specifiers to pass arguments.\n\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\n[ folded: Use the new TP_PROTO and TP_ARGS to fix the build. ]\n[ folded: fix build when CONFIG_KMEMTRACE is disabled. ]\n[ folded: define tracepoints when CONFIG_TRACEPOINTS is enabled. ]\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nLKML-Reference: \u003cae61c0f37156db8ec8dc0d5778018edde60a92e3.1237813499.git.eduard.munteanu@linux360.ro\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "645dae969c3b8651c5bc7c54a1835ec03820f85f", "tree": "bcc9a1fb2c9aa62696980209d751f8493fdefb12", "parents": [ "a095bdbb136f7bed96b7adf5aa1dd27bb2f839bf" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Thu Mar 19 15:46:17 2009 +1100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 02 00:50:30 2009 +0200" }, "message": "tracing, net: fix net tree and tracing tree merge interaction\n\nToday\u0027s linux-next build (powerpc ppc64_defconfig) failed like this:\n\n In file included from net/core/skbuff.c:69:\n include/trace/skb.h:4: error: expected \u0027)\u0027 before \u0027(\u0027 token\n include/trace/skb.h:4: error: expected \u0027)\u0027 before \u0027(\u0027 token\n [...]\n\nCaused by commit 2939b0469d04ba9ac791aca9a81625d7eb50662b (\"tracing:\nreplace TP\u003cvar\u003e with TP_\u003cvar\u003e\") from the tracing tree interacting with\ncommit 4893d39e865b2897bf9fcd329697d37032d853a1 (\"Network Drop Monitor:\nAdd trace declaration for skb frees\") from the net tree.\n\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8302294f43250dc337108c51882a6007f2b1e2e0", "tree": "85acd4440799c46a372df9cad170fa0c21e59096", "parents": [ "4fe70410d9a219dabb47328effccae7e7f2a6e26", "2e572895bf3203e881356a4039ab0fa428ed2639" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Apr 01 21:54:19 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Apr 02 00:49:02 2009 +0200" }, "message": "Merge branch \u0027tracing/core-v2\u0027 into tracing-for-linus\n\nConflicts:\n\tinclude/linux/slub_def.h\n\tlib/Kconfig.debug\n\tmm/slob.c\n\tmm/slub.c\n" }, { "commit": "5393f3162d3a85317e1e22c33539905fa5258e5f", "tree": "451945b944458996f21aa4cc62aa3e6c2a5d0e49", "parents": [ "35c7f6de7339f40a591a8aeccacdc429b1953674" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Tue Mar 24 09:44:28 2009 +0000" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue Mar 24 14:24:10 2009 -0700" }, "message": "net: Add dependent headers to trace/skb.h\n\nThe tracing header needs to include definitions for the macros used and\nthe types referenced. This lets automated tracing tools like SystemTap\nmake use of the tracepoint without any specific knowledge of its\nmeaning (leaving that to the user).\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCC: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "4893d39e865b2897bf9fcd329697d37032d853a1", "tree": "04ba3529c2142651c6974a13f0f6c5654059b471", "parents": [ "26ccfc37da21e6f02d5e805c38ca7551c16b2fe0" ], "author": { "name": "Neil Horman", "email": "nhorman@tuxdriver.com", "time": "Wed Mar 11 09:48:26 2009 +0000" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Fri Mar 13 12:09:27 2009 -0700" }, "message": "Network Drop Monitor: Add trace declaration for skb frees\n\nSigned-off-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\n\n include/trace/skb.h | 8 ++++++++\n net/core/Makefile | 2 ++\n net/core/net-traces.c | 29 +++++++++++++++++++++++++++++\n 3 files changed, 39 insertions(+)\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "39842323ceb368d2ea36ab7696aedbe296e13b61", "tree": "6050a0e282eaaf500f3809b1e53256b24b570d92", "parents": [ "5d592b44b29a1d73e13d5c9e3426eed843bdc359" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Thu Mar 12 14:36:03 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Mar 12 21:20:58 2009 -0400" }, "message": "tracing: tracepoints for softirq entry/exit - tracepoints\n\nIntroduce softirq entry/exit tracepoints. These are useful for\naugmenting existing tracers, and to figure out softirq frequencies and\ntimings.\n\n[\n s/irq_softirq_/softirq_/ for trace point names and\n Fixed printf format in TRACE_FORMAT macro\n - Steven Rostedt\n]\n\nLKML-Reference: \u003c20090312183603.GC3352@redhat.com\u003e\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "30a8fecc2d34f086df34fe2f2b926f080e002600", "tree": "a6959a40a6a3065b61ddcf4954861dfd8892a843", "parents": [ "2314c4ae1461c9e8b26cf8b9a851f280bc5769e1" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 12:41:38 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 12:41:38 2009 -0400" }, "message": "tracing: flip the TP_printk and TP_fast_assign in the TRACE_EVENT macro\n\nImpact: clean up\n\nIn trying to stay consistant with the C style format in the TRACE_EVENT\nmacro, it makes more sense to do the printk after the assigning of\nthe variables.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "157587d7ac555458da9f682e3250135e468470a6", "tree": "81033336672eb821f3833a1667bedfc646a3a6f5", "parents": [ "d6e2ca4c05be6a5ab16030a9f227301bd6acc9f0" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:15:34 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:35:12 2009 -0400" }, "message": "tracing: remove obsolete TRACE_EVENT_FORMAT macro\n\nImpact: clean up\n\nThe TRACE_EVENT_FORMAT macro is no longer used by trace points\nand only the DECLARE_TRACE, TRACE_FORMAT or TRACE_EVENT macros should\nbe used by them. Although the TRACE_EVENT_FORMAT macro is still used\nby the internal tracing utility, it should not be used in core\nkernel code.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "d6e2ca4c05be6a5ab16030a9f227301bd6acc9f0", "tree": "ee5521921ab200ccba02d8e603cda4a9afc43776", "parents": [ "12b5fdb8bbb2d2fc31746d7b672c12fd8897aa08" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 09 23:23:30 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:35:11 2009 -0400" }, "message": "tracing: convert irq trace points to new macros\n\nImpact: enhancement\n\nConverted the two irq trace point macros. The entry macro copies\nthe name of the irq handler, thus it is better to simply use the\nTRACE_FORMAT macro which uses the trace_printk.\n\nThe return of the handler does not need to record the name, thus\nthe faster C style handler is more approriate.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "12b5fdb8bbb2d2fc31746d7b672c12fd8897aa08", "tree": "e3fa71cd3b5613d105b1a081cec23b2a51842867", "parents": [ "da4d03020c2af32f73e8bfbab0a66620d85bb9bb" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 09 23:03:44 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:35:09 2009 -0400" }, "message": "tracing: convert the sched trace points to the TRACE_EVENT macros\n\nImpact: enhancement\n\nThis patch converts the rest of the sched trace points to use the new\nmore powerful TRACE_EVENT macro.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "da4d03020c2af32f73e8bfbab0a66620d85bb9bb", "tree": "3ee6d7d69754df7910454315a6011c14d8664d01", "parents": [ "9cc26a261d43e5898287a1f5808132f8f05ceb1c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 09 17:14:30 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:35:07 2009 -0400" }, "message": "tracing: new format for specialized trace points\n\nImpact: clean up and enhancement\n\nThe TRACE_EVENT_FORMAT macro looks quite ugly and is limited in its\nability to save data as well as to print the record out. Working with\nIngo Molnar, we came up with a new format that is much more pleasing to\nthe eye of C developers. This new macro is more C style than the old\nmacro, and is more obvious to what it does.\n\nHere\u0027s the example. The only updated macro in this patch is the\nsched_switch trace point.\n\nThe old method looked like this:\n\n TRACE_EVENT_FORMAT(sched_switch,\n TP_PROTO(struct rq *rq, struct task_struct *prev,\n struct task_struct *next),\n TP_ARGS(rq, prev, next),\n TP_FMT(\"task %s:%d \u003d\u003d\u003e %s:%d\",\n prev-\u003ecomm, prev-\u003epid, next-\u003ecomm, next-\u003epid),\n TRACE_STRUCT(\n TRACE_FIELD(pid_t, prev_pid, prev-\u003epid)\n TRACE_FIELD(int, prev_prio, prev-\u003eprio)\n TRACE_FIELD_SPECIAL(char next_comm[TASK_COMM_LEN],\n next_comm,\n TP_CMD(memcpy(TRACE_ENTRY-\u003enext_comm,\n next-\u003ecomm,\n TASK_COMM_LEN)))\n TRACE_FIELD(pid_t, next_pid, next-\u003epid)\n TRACE_FIELD(int, next_prio, next-\u003eprio)\n ),\n TP_RAW_FMT(\"prev %d:%d \u003d\u003d\u003e next %s:%d:%d\")\n );\n\nThe above method is hard to read and requires two format fields.\n\nThe new method:\n\n /*\n * Tracepoint for task switches, performed by the scheduler:\n *\n * (NOTE: the \u0027rq\u0027 argument is not used by generic trace events,\n * but used by the latency tracer plugin. )\n */\n TRACE_EVENT(sched_switch,\n\n\tTP_PROTO(struct rq *rq, struct task_struct *prev,\n\t\t struct task_struct *next),\n\n\tTP_ARGS(rq, prev, next),\n\n\tTP_STRUCT__entry(\n\t\t__array(\tchar,\tprev_comm,\tTASK_COMM_LEN\t)\n\t\t__field(\tpid_t,\tprev_pid\t\t\t)\n\t\t__field(\tint,\tprev_prio\t\t\t)\n\t\t__array(\tchar,\tnext_comm,\tTASK_COMM_LEN\t)\n\t\t__field(\tpid_t,\tnext_pid\t\t\t)\n\t\t__field(\tint,\tnext_prio\t\t\t)\n\t),\n\n\tTP_printk(\"task %s:%d [%d] \u003d\u003d\u003e %s:%d [%d]\",\n\t\t__entry-\u003eprev_comm, __entry-\u003eprev_pid, __entry-\u003eprev_prio,\n\t\t__entry-\u003enext_comm, __entry-\u003enext_pid, __entry-\u003enext_prio),\n\n\tTP_fast_assign(\n\t\tmemcpy(__entry-\u003enext_comm, next-\u003ecomm, TASK_COMM_LEN);\n\t\t__entry-\u003eprev_pid\t\u003d prev-\u003epid;\n\t\t__entry-\u003eprev_prio\t\u003d prev-\u003eprio;\n\t\tmemcpy(__entry-\u003eprev_comm, prev-\u003ecomm, TASK_COMM_LEN);\n\t\t__entry-\u003enext_pid\t\u003d next-\u003epid;\n\t\t__entry-\u003enext_prio\t\u003d next-\u003eprio;\n\t)\n );\n\nThis macro is called TRACE_EVENT, it is broken up into 5 parts:\n\n TP_PROTO: the proto type of the trace point\n TP_ARGS: the arguments of the trace point\n TP_STRUCT_entry: the structure layout of the entry in the ring buffer\n TP_printk: the printk format\n TP_fast_assign: the method used to write the entry into the ring buffer\n\nThe structure is the definition of how the event will be saved in the\nring buffer. The printk is used by the internal tracing in case of\nan oops, and the kernel needs to print out the format of the record\nto the console. This the TP_printk gives a means to show the records\nin a human readable format. It is also used to print out the data\nfrom the trace file.\n\nThe TP_fast_assign is executed directly. It is basically like a C function,\nwhere the __entry is the handle to the record.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "2939b0469d04ba9ac791aca9a81625d7eb50662b", "tree": "573f10c39f34c670fdc6832415642738c5afb3f9", "parents": [ "156b5f172a64103bcb13b6d26288388b9019caa3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 09 15:47:18 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Mar 10 00:35:04 2009 -0400" }, "message": "tracing: replace TP\u003cvar\u003e with TP_\u003cvar\u003e\n\nImpact: clean up\n\nThe macros TPPROTO, TPARGS, TPFMT, TPRAWFMT, and TPCMD all look a bit\nugly. This patch adds an underscore to their names.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "af438c0f114b6f731b923b5c07150f6159471502", "tree": "640002ad0a9d59037edb85d4424dcd3461c38fe8", "parents": [ "10dd3ebe213c31bff14b4dae3c5d32a76b1fad7c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 06 12:47:08 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Mar 06 12:47:08 2009 +0100" }, "message": "tracing, power-trace: make it build even if the power-tracer is turned off\n\nImpact: build fix\n\nThe \u0027struct power_trace\u0027 definition is needed (for the event tracer) even if\nthe power-tracer plugin is turned off in the .config.\n\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nLKML-Reference: \u003c20090306104106.GF31042@elte.hu\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "efed792d6738964f399a508ef9e831cd60fa4657", "tree": "b4b5e472bafb3d5d0d8ea26680e1d8cc87365c30", "parents": [ "28b1bd1cbc33cae95a309691d814399a69cf3070" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Mar 04 12:32:55 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Mar 04 18:49:58 2009 +0100" }, "message": "tracing: add lockdep tracepoints for lock acquire/release\n\nAugment the traces with lock names when lockdep is available:\n\n 1) | down_read_trylock() {\n 1) | _spin_lock_irqsave() {\n 1) | /* lock_acquire: \u0026sem-\u003ewait_lock */\n 1) 4.201 us | }\n 1) | _spin_unlock_irqrestore() {\n 1) | /* lock_release: \u0026sem-\u003ewait_lock */\n 1) 3.523 us | }\n 1) | /* lock_acquire: try read \u0026mm-\u003emmap_sem */\n 1) + 13.386 us | }\n 1) 1.635 us | find_vma();\n 1) | handle_mm_fault() {\n 1) | __do_fault() {\n 1) | filemap_fault() {\n 1) | find_lock_page() {\n 1) | find_get_page() {\n 1) | /* lock_acquire: read rcu_read_lock */\n 1) | /* lock_release: rcu_read_lock */\n 1) 5.697 us | }\n 1) 8.158 us | }\n 1) + 11.079 us | }\n 1) | _spin_lock() {\n 1) | /* lock_acquire: __pte_lockptr(page) */\n 1) 3.949 us | }\n 1) 1.460 us | page_add_file_rmap();\n 1) | _spin_unlock() {\n 1) | /* lock_release: __pte_lockptr(page) */\n 1) 3.115 us | }\n 1) | unlock_page() {\n 1) 1.421 us | page_waitqueue();\n 1) 1.220 us | __wake_up_bit();\n 1) 6.519 us | }\n 1) + 34.328 us | }\n 1) + 37.452 us | }\n 1) | up_read() {\n 1) | /* lock_release: \u0026mm-\u003emmap_sem */\n 1) | _spin_lock_irqsave() {\n 1) | /* lock_acquire: \u0026sem-\u003ewait_lock */\n 1) 3.865 us | }\n 1) | _spin_unlock_irqrestore() {\n 1) | /* lock_release: \u0026sem-\u003ewait_lock */\n 1) 8.562 us | }\n 1) + 17.370 us | }\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: \u003d?ISO-8859-1?Q?T\u003dF6r\u003dF6k?\u003d Edwin \u003cedwintorok@gmail.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1236166375.5330.7209.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d20e3b03842bfeb9d21817ff19054c277cc3eac0", "tree": "5de7ef8a95f9391a264df358336842c9301f3868", "parents": [ "f2034f1e1adaac6713a6d48b5a2d4f3aa3e63ccb" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 02 10:53:15 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Mar 02 10:53:15 2009 -0500" }, "message": "tracing: add TRACE_FIELD_SPECIAL to record complex entries\n\nTom Zanussi pointed out that the simple TRACE_FIELD was not enough to\nrecord trace data that required memcpy. This patch addresses this issue\nby adding a TRACE_FIELD_SPECIAL. The format is similar to TRACE_FIELD\nbut looks like so:\n\n TRACE_FIELD_SPECIAL(type_item, item, cmd)\n\nWhat TRACE_FIELD gave was:\n\n TRACE_FIELD(type, item, assign)\n\nThe TRACE_FIELD would be used in declaring a structure:\n\n struct {\n\ttype\titem;\n };\n\nAnd later assign it via:\n\n entry-\u003eitem \u003d assign;\n\nWhat TRACE_FIELD_SPECIAL gives us is:\n\nIn the declaration of the structure:\n\n struct {\n\ttype_item;\n };\n\nAnd the assignment:\n\n cmd;\n\nThis change log will explain the one example used in the patch:\n\n TRACE_EVENT_FORMAT(sched_switch,\n\tTPPROTO(struct rq *rq, struct task_struct *prev,\n\t\tstruct task_struct *next),\n\tTPARGS(rq, prev, next),\n\tTPFMT(\"task %s:%d \u003d\u003d\u003e %s:%d\",\n\t prev-\u003ecomm, prev-\u003epid, next-\u003ecomm, next-\u003epid),\n\tTRACE_STRUCT(\n\t\tTRACE_FIELD(pid_t, prev_pid, prev-\u003epid)\n\t\tTRACE_FIELD(int, prev_prio, prev-\u003eprio)\n\t\tTRACE_FIELD_SPECIAL(char next_comm[TASK_COMM_LEN],\n\t\t\t\t next_comm,\n\t\t\t\t TPCMD(memcpy(TRACE_ENTRY-\u003enext_comm,\n\t\t\t\t\t\t next-\u003ecomm,\n\t\t\t\t\t\t TASK_COMM_LEN)))\n\t\tTRACE_FIELD(pid_t, next_pid, next-\u003epid)\n\t\tTRACE_FIELD(int, next_prio, next-\u003eprio)\n\t),\n\tTPRAWFMT(\"prev %d:%d \u003d\u003d\u003e next %s:%d:%d\")\n\t);\n\n The struct will be create as:\n\n struct {\n\tpid_t\t\tprev_pid;\n\tint\t\tprev_prio;\n\tchar next_comm[TASK_COMM_LEN];\n\tpid_t\t\tnext_pid;\n\tint\t\tnext_prio;\n };\n\nNote the TRACE_ENTRY in the cmd part of TRACE_SPECIAL. TRACE_ENTRY will\nbe set by the tracer to point to the structure inside the trace buffer.\n\n entry-\u003eprev_pid\t\u003d prev-\u003epid;\n entry-\u003eprev_prio\t\u003d prev-\u003eprio;\n memcpy(entry-\u003enext_comm, next-\u003ecomm, TASK_COMM_LEN);\n entry-\u003enext_pid\t\u003d next-\u003epid;\n entry-\u003enext_prio\t\u003d next-\u003eprio\n\nReported-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "f2034f1e1adaac6713a6d48b5a2d4f3aa3e63ccb", "tree": "8bedd2378076b3ec4e5ba5085e749349db2034c1", "parents": [ "629928041c53771f9902753d50fef6b35f36d33d" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 02:54:39 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 04:04:14 2009 -0500" }, "message": "tracing: create the C style tracing for the irq subsystem\n\nThis patch utilizes the TRACE_EVENT_FORMAT macro to enable the C style\nfaster tracing for the irq subsystem trace points.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "629928041c53771f9902753d50fef6b35f36d33d", "tree": "e960bf1f0311a2d00eadebfc1304662a149e32fe", "parents": [ "fd99498989f3b3feeab89dcadf537138ba136d24" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 02:47:59 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 04:04:13 2009 -0500" }, "message": "tracing: create the C style tracing for the sched subsystem\n\nThis patch utilizes the TRACE_EVENT_FORMAT macro to enable the C style\nfaster tracing for the sched subsystem trace points.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "3d7ba938da8481b4f7f9ed3d943dbae49389b284", "tree": "ee1fc21396f016decc6694a1d0908fc7a3da2ccc", "parents": [ "0ec2ef1505b3e1f54b07bf64f184c92859c3e13f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Feb 27 23:45:52 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 03:06:31 2009 -0500" }, "message": "tracing: add subsystem sched for sched events\n\nAdd the TRACE_SYSTEM sched for the sched events.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "0ec2ef1505b3e1f54b07bf64f184c92859c3e13f", "tree": "a3720a444e043442c445e6bb95547caaff38ba93", "parents": [ "b628b3e629b1436710e59a21cc020fbb04a52ce1" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Feb 27 23:41:43 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 03:06:13 2009 -0500" }, "message": "tracing: add subsystem irq for irq events\n\nAdd the TRACE_SYSTEM irq for the irq events.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "eb594e45f6979cd10b18d87f7b3f02119e00a108", "tree": "eb27cea51205ad527a0b1582c9b02d434f7129bc", "parents": [ "0cfe82451dfa3ebf4e69158f2eb450f2fbb6b715" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Feb 27 17:36:06 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sat Feb 28 02:58:50 2009 -0500" }, "message": "tracing: move trace point formats to files in include/trace directory\n\nImpact: clean up\n\nTo further facilitate the ease of adding trace points for developers, this\npatch creates include/trace/trace_events.h and\ninclude/trace/trace_event_types.h.\n\nThe former file will hold the trace/\u003ctype\u003e.h files and the latter will hold\nthe trace/\u003ctype\u003e_event_types.h files.\n\nTo create new tracepoints and to have them automatically\nappear in the event tracer, a developer makes the trace/\u003ctype\u003e.h file\nwhich includes \u003clinux/tracepoint.h\u003e and the trace/\u003ctype\u003e_event_types.h file.\n\nThe trace/\u003ctype\u003e_event_types.h file will hold the TRACE_FORMAT\nmacros.\n\nThen add the trace/\u003ctype\u003e.h file to trace/trace_events.h,\nand add the trace/\u003ctype\u003e_event_types.h to the trace_event_types.h file.\n\nNo need to modify files elsewhere.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "af39241b90a345556b8884adff87096afe71b050", "tree": "a913e3f15b1fb91555b5cb5899270274ce4c2c46", "parents": [ "8656e7a2fa6afcd8682990f804a2a9674568738f" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Thu Feb 26 10:11:05 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Feb 26 18:43:50 2009 +0100" }, "message": "tracing, genirq: add irq enter and exit trace events\n\nImpact: add new tracepoints\n\nAdd them to the generic IRQ code, that way every architecture\ngets these new tracepoints, not just x86.\n\nUsing Steve\u0027s new \u0027TRACE_FORMAT\u0027, I can get function graph\ntrace as follows using the original two IRQ tracepoints:\n\n 3) | handle_IRQ_event() {\n 3) | /* (irq_handler_entry) irq\u003d28 handler\u003deth0 */\n 3) | e1000_intr_msi() {\n 3) 2.460 us | __napi_schedule();\n 3) 9.416 us | }\n 3) | /* (irq_handler_exit) irq\u003d28 handler\u003deth0 return\u003dhandled */\n 3) + 22.935 us | }\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Mathieu Desnoyers \u003ccompudj@krystal.dyndns.org\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eef62a6826b8ab530cefff5aa55c1661a209c803", "tree": "f24c7f08b9a6ed443c09f26509cf2cf26fb8a19c", "parents": [ "d7350c3f45694104e820041969c8185c5f99e57c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Feb 25 15:49:52 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Feb 25 21:44:22 2009 -0500" }, "message": "tracing: rename DEFINE_TRACE_FMT to just TRACE_FORMAT\n\nThere\u0027s been a bit confusion to whether DEFINE/DECLARE_TRACE_FMT should\nbe a DEFINE or a DECLARE. Ingo Molnar suggested simply calling it\nTRACE_FORMAT.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "f3fe8e4a38fd19dbb3f8ffb1826aa840ae304a65", "tree": "9df43f7711f836173adebcefe2f4776bd3e30340", "parents": [ "b77e38aa240c3bd9c55c98b9f7c81541e042eae5" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Feb 24 10:22:57 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Feb 24 21:54:07 2009 -0500" }, "message": "tracing: add schedule events to event trace\n\nThis patch changes the trace/sched.h to use the DECLARE_TRACE_FMT\nsuch that they are automatically registered with the event tracer.\n\nAnd it also adds the tracing sched headers to kernel/trace/events.c\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "b5f9fd0f8a05c9bafb91a9a85b9110938d8e585b", "tree": "14e84d393f5dd1235fc6e256564d80e965daf3a7", "parents": [ "45141d4667d208421ca787a3301542b6a5e0b112" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Wed Feb 11 13:57:25 2009 -0500" }, "committer": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Feb 13 09:06:18 2009 -0500" }, "message": "tracing: convert c/p state power tracer to use tracepoints\n\nConvert the c/p state \"power\" tracer to use tracepoints. Avoids a\nfunction call when the tracer is disabled.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\n" }, { "commit": "1292211058aaf872eeb2a0e2677d237916b4501f", "tree": "7127ffe80e42faed85bf45b4182c97a39f299642", "parents": [ "7447dce96f2233d250bc39a4a10a42f7c3dd46fc" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Feb 07 22:16:12 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Feb 09 10:51:38 2009 +0100" }, "message": "tracing/power: move the power trace headers to a dedicated file\n\nImpact: cleanup\n\nMove the power tracer headers to trace/power.h to keep ftrace.h and power bits\nmore easy to maintain as separated topics.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e1d8aa9f1dd655a3534b22fcfbecb70cdb125766", "tree": "eb01b005a1d378515d5839bf1c7ea9836355ec9c", "parents": [ "002bb86d8d42f18937aef396c3ecd65c7e02e21a" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Jan 12 23:15:46 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 14 12:11:43 2009 +0100" }, "message": "tracing: add a new workqueue tracer\n\nImpact: new tracer\n\nThe workqueue tracer provides some statistical informations\nabout each cpu workqueue thread such as the number of the\nworks inserted and executed since their creation. It can help\nto evaluate the amount of work each of them have to perform.\nFor example it can help a developer to decide whether he should\nchoose a per cpu workqueue instead of a singlethreaded one.\n\nIt only traces statistical informations for now but it will probably later\nprovide event tracing too.\n\nSuch a tracer could help too, and be improved, to help rt priority sorted\nworkqueue development.\n\nTo have a snapshot of the workqueues state at any time, just do\n\ncat /debugfs/tracing/trace_stat/workqueues\n\nIe:\n\n 1 125 125 reiserfs/1\n 1 0 0 scsi_tgtd/1\n 1 0 0 aio/1\n 1 0 0 ata/1\n 1 114 114 kblockd/1\n 1 0 0 kintegrityd/1\n 1 2147 2147 events/1\n\n 0 0 0 kpsmoused\n 0 105 105 reiserfs/0\n 0 0 0 scsi_tgtd/0\n 0 0 0 aio/0\n 0 0 0 ata_aux\n 0 0 0 ata/0\n 0 0 0 cqueue\n 0 0 0 kacpi_notify\n 0 0 0 kacpid\n 0 149 149 kblockd/0\n 0 0 0 kintegrityd/0\n 0 1000 1000 khelper\n 0 2270 2270 events/0\n\nChanges in V2:\n\n_ Drop the static array based on NR_CPU and dynamically allocate the stat array\n with num_possible_cpus() and other cpu mask facilities....\n_ Trace workqueue insertion at a bit lower level (insert_work instead of queue_work) to handle\n even the workqueue barriers.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "36994e58a48fb8f9651c7dc845a6de298aba5bfc", "tree": "fac4b8a1c30560e91460651487f3a57ef7f2b5cc", "parents": [ "7a51cffbd10886c0557677dd916c090097c691ef" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Dec 29 13:42:23 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 30 09:36:13 2008 +0100" }, "message": "tracing/kmemtrace: normalize the raw tracer event to the unified tracing API\n\nImpact: new tracer plugin\n\nThis patch adapts kmemtrace raw events tracing to the unified tracing API.\n\nTo enable and use this tracer, just do the following:\n\n echo kmemtrace \u003e /debugfs/tracing/current_tracer\n cat /debugfs/tracing/trace\n\nYou will have the following output:\n\n # tracer: kmemtrace\n #\n #\n # ALLOC TYPE REQ GIVEN FLAGS POINTER NODE CALLER\n # FREE | | | | | | | |\n # |\n\ntype_id 1 call_site 18446744071565527833 ptr 18446612134395152256\ntype_id 0 call_site 18446744071565585597 ptr 18446612134405955584 bytes_req 4096 bytes_alloc 4096 gfp_flags 208 node -1\ntype_id 1 call_site 18446744071565585534 ptr 18446612134405955584\ntype_id 0 call_site 18446744071565585597 ptr 18446612134405955584 bytes_req 4096 bytes_alloc 4096 gfp_flags 208 node -1\ntype_id 0 call_site 18446744071565636711 ptr 18446612134345164672 bytes_req 240 bytes_alloc 240 gfp_flags 208 node -1\ntype_id 1 call_site 18446744071565585534 ptr 18446612134405955584\ntype_id 0 call_site 18446744071565585597 ptr 18446612134405955584 bytes_req 4096 bytes_alloc 4096 gfp_flags 208 node -1\ntype_id 0 call_site 18446744071565636711 ptr 18446612134345164912 bytes_req 240 bytes_alloc 240 gfp_flags 208 node -1\ntype_id 1 call_site 18446744071565585534 ptr 18446612134405955584\ntype_id 0 call_site 18446744071565585597 ptr 18446612134405955584 bytes_req 4096 bytes_alloc 4096 gfp_flags 208 node -1\ntype_id 0 call_site 18446744071565636711 ptr 18446612134345165152 bytes_req 240 bytes_alloc 240 gfp_flags 208 node -1\ntype_id 0 call_site 18446744071566144042 ptr 18446612134346191680 bytes_req 1304 bytes_alloc 1312 gfp_flags 208 node -1\ntype_id 1 call_site 18446744071565585534 ptr 18446612134405955584\ntype_id 0 call_site 18446744071565585597 ptr 18446612134405955584 bytes_req 4096 bytes_alloc 4096 gfp_flags 208 node -1\ntype_id 1 call_site 18446744071565585534 ptr 18446612134405955584\n\nThat was to stay backward compatible with the format output produced in\ninux/tracepoint.h.\n\nThis is the default ouput, but note that I tried something else.\n\nIf you change an option:\n\necho kmem_minimalistic \u003e /debugfs/trace_options\n\nand then cat /debugfs/trace, you will have the following output:\n\n # tracer: kmemtrace\n #\n #\n # ALLOC TYPE REQ GIVEN FLAGS POINTER NODE CALLER\n # FREE | | | | | | | |\n # |\n\n - C 0xffff88007c088780 file_free_rcu\n + K 4096 4096 000000d0 0xffff88007cad6000 -1 getname\n - C 0xffff88007cad6000 putname\n + K 4096 4096 000000d0 0xffff88007cad6000 -1 getname\n + K 240 240 000000d0 0xffff8800790dc780 -1 d_alloc\n - C 0xffff88007cad6000 putname\n + K 4096 4096 000000d0 0xffff88007cad6000 -1 getname\n + K 240 240 000000d0 0xffff8800790dc870 -1 d_alloc\n - C 0xffff88007cad6000 putname\n + K 4096 4096 000000d0 0xffff88007cad6000 -1 getname\n + K 240 240 000000d0 0xffff8800790dc960 -1 d_alloc\n + K 1304 1312 000000d0 0xffff8800791d7340 -1 reiserfs_alloc_inode\n - C 0xffff88007cad6000 putname\n + K 4096 4096 000000d0 0xffff88007cad6000 -1 getname\n - C 0xffff88007cad6000 putname\n + K 992 1000 000000d0 0xffff880079045b58 -1 alloc_inode\n + K 768 1024 000080d0 0xffff88007c096400 -1 alloc_pipe_info\n + K 240 240 000000d0 0xffff8800790dca50 -1 d_alloc\n + K 272 320 000080d0 0xffff88007c088780 -1 get_empty_filp\n + K 272 320 000080d0 0xffff88007c088000 -1 get_empty_filp\n\nYeah I shall confess kmem_minimalistic should be: kmem_alternative.\n\nWhatever, I find it more readable but this a personal opinion of course.\nWe can drop it if you want.\n\nOn the ALLOC/FREE column, + means an allocation and - a free.\n\nOn the type column, you have K \u003d kmalloc, C \u003d cache, P \u003d page\n\nI would like the flags to be GFP_* strings but that would not be easy to not\nbreak the column with strings....\n\nAbout the node...it seems to always be -1. I don\u0027t know why but that shouldn\u0027t\nbe difficult to find.\n\nI moved linux/tracepoint.h to trace/tracepoint.h as well. I think that would\nbe more easy to find the tracer headers if they are all in their common\ndirectory.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "468a15bb4cc61694495cc5ed7ffca29e87c79b69", "tree": "51274b853cc427666925f917203487a69d01c3d9", "parents": [ "0ca59dd948a51c95d5a366d35f897bc5ef9df55d" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue Dec 16 08:07:03 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 25 13:10:21 2008 +0100" }, "message": "sched, trace: update trace_sched_wakeup()\n\nImpact: extend the wakeup tracepoint with the info whether the wakeup was real\n\nAdd the information needed to distinguish \u0027real\u0027 wakeups from \u0027false\u0027\nwakeups.\n\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c71dd42db2c6f1637b92502a214587431c1a6ad2", "tree": "778c7da5c7539cbab90cdbead19d6597529187a7", "parents": [ "3bddb9a3246f6df5cf3b7655cb541ac10203bb71" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 19 01:09:51 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 19 01:05:38 2008 +0100" }, "message": "tracing: fix warnings in kernel/trace/trace_sched_switch.c\n\nthese warnings:\n\n kernel/trace/trace_sched_switch.c: In function ‘tracing_sched_register’:\n kernel/trace/trace_sched_switch.c:96: warning: passing argument 1 of ‘register_trace_sched_wakeup_new’ from incompatible pointer type\n kernel/trace/trace_sched_switch.c:112: warning: passing argument 1 of ‘unregister_trace_sched_wakeup_new’ from incompatible pointer type\n kernel/trace/trace_sched_switch.c: In function ‘tracing_sched_unregister’:\n kernel/trace/trace_sched_switch.c:121: warning: passing argument 1 of ‘unregister_trace_sched_wakeup_new’ from incompatible pointer type\n\nTrigger because sched_wakeup_new tracepoints need the same trace\nsignature as sched_wakeup - which was changed recently.\n\nFix it.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9dfc3bc7d21864d47797d64b8d531d4dbbc0b618", "tree": "fdf0eb86fdb7a7ecfb4f7bc718ac26875f3f94a2", "parents": [ "da485e0cb16726797e99a595a399b9fc721b91bc", "cbc34ed1ac36690f75fd272e19e7b4fc29aae5a2", "2bed8446819a7c5033aa1da138d9f230ae212edc", "ffc2238af8431d930d2c15f16feecf1fd6d75642" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 16 12:03:38 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 16 12:03:38 2008 +0100" }, "message": "Merge branches \u0027tracing/fastboot\u0027, \u0027tracing/ftrace\u0027, \u0027tracing/function-graph-tracer\u0027 and \u0027tracing/hw-branch-tracing\u0027 into tracing/core\n" }, { "commit": "cbc34ed1ac36690f75fd272e19e7b4fc29aae5a2", "tree": "be0c1e0d4ed4eab1c9385198372dc64de50c9f1b", "parents": [ "f3134de60624829a57741c1f3796847d4de165f6" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Dec 10 08:08:22 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 12 12:08:26 2008 +0100" }, "message": "sched: fix tracepoints in scheduler\n\nThe trace point only caught one of many places where a task changes cpu,\nput it in the right place to we get all of them.\n\nChange the signature while we\u0027re at it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "da485e0cb16726797e99a595a399b9fc721b91bc", "tree": "9efcec80a90920631de0aa216331af655a396d8d", "parents": [ "8001530d5af707eb9a158839c8f651eb6c1cb3c2" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Dec 11 16:14:23 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 12 09:26:13 2008 +0100" }, "message": "tracing/fastboot: include missing headers\n\nFor now include/trace/boot.h doesn\u0027t need to include necessary headers\nfor its functions and structures because the files that include it already\ndo it.\n\nBut boot.h could be needed as well for further uses on other files.\nSo, this patch adds the necessary headers for future purposes...\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8001530d5af707eb9a158839c8f651eb6c1cb3c2", "tree": "052788f8eb59b13bb7d1edf691150dbc7a54901b", "parents": [ "f3134de60624829a57741c1f3796847d4de165f6" ], "author": { "name": "Stephen Rothwell", "email": "sfr@canb.auug.org.au", "time": "Thu Dec 11 16:10:08 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Dec 12 09:26:12 2008 +0100" }, "message": "tracing/fastboot: fix len of func buffer\n\nImpact: fix possible stack overrun\n\nThis is a port of a patch included in the mainline (KSYM_SYMBOL_LEN fixes).\nThe current func len is not large enough to contain the max symbol len, the\nright size must be KSYM_SYMBOL_LEN.\n\nSigned-off-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0bfc24559d7945506184d86739fe365a181f06b7", "tree": "5c152128faac7080f4802ce03d1c6b6bc7173227", "parents": [ "5f3ea37c7716db4e894a480e0c18b24399595b6b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 11:59:56 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 13:04:35 2008 +0100" }, "message": "blktrace: port to tracepoints, update\n\nPort to the new tracepoints API: split DEFINE_TRACE() and DECLARE_TRACE()\nsites. Spread them out to the usage sites, as suggested by\nMathieu Desnoyers.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\n" }, { "commit": "5f3ea37c7716db4e894a480e0c18b24399595b6b", "tree": "db6784635d024894f641b340dcd7c5060c446077", "parents": [ "509dceef6470442d8c7b8a43ec34125205840b3c" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu Oct 30 08:34:33 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 26 12:13:34 2008 +0100" }, "message": "blktrace: port to tracepoints\n\nThis was a forward port of work done by Mathieu Desnoyers, I changed it to\nencode the \u0027what\u0027 parameter on the tracepoint name, so that one can register\ninterest in specific events and not on classes of events to then check the\n\u0027what\u0027 parameter.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7e066fb870fcd1025ec3ba7bbde5d541094f4ce1", "tree": "52acda06de25c029b9834110d7bf6b4abc50353b", "parents": [ "32f85742778dfc2c74975cf0b9f5bdb13470cb32" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Fri Nov 14 17:47:47 2008 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 16 09:01:36 2008 +0100" }, "message": "tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()\n\nImpact: API *CHANGE*. Must update all tracepoint users.\n\nAdd DEFINE_TRACE() to tracepoints to let them declare the tracepoint\nstructure in a single spot for all the kernel. It helps reducing memory\nconsumption, especially when declaring a lot of tracepoints, e.g. for\nkmalloc tracing.\n\n*API CHANGE WARNING*: now, DECLARE_TRACE() must be used in headers for\ntracepoint declarations rather than DEFINE_TRACE(). This is the sane way\nto do it. The name previously used was misleading.\n\nUpdates scheduler instrumentation to follow this API change.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "74239072830ef3f1398edeb1bc1076fc330fd4a2", "tree": "60a244c6c88d9943760ded98a1a29ce018292107", "parents": [ "3f5ec13696fd4a33bde42f385406cbb1d3cc96fd" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Nov 11 23:24:42 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 12 10:17:19 2008 +0100" }, "message": "tracing/fastboot: Use the ring-buffer timestamp for initcall entries\n\nImpact: Split the boot tracer entries in two parts: call and return\n\nNow that we are using the sched tracer from the boot tracer, we want\nto use the same timestamp than the ring-buffer to have consistent time\ncaptures between sched events and initcall events.\n\nSo we get rid of the old time capture by the boot tracer and split the\ninitcall events in two parts: call and return. This way we have the\nring buffer timestamp of both.\n\nAn example trace:\n\n[ 27.904149584] calling net_ns_init+0x0/0x1c0 @ 1\n[ 27.904429624] initcall net_ns_init+0x0/0x1c0 returned 0 after 0 msecs\n[ 27.904575926] calling reboot_init+0x0/0x20 @ 1\n[ 27.904655399] initcall reboot_init+0x0/0x20 returned 0 after 0 msecs\n[ 27.904800228] calling sysctl_init+0x0/0x30 @ 1\n[ 27.905142914] initcall sysctl_init+0x0/0x30 returned 0 after 0 msecs\n[ 27.905287211] calling ksysfs_init+0x0/0xb0 @ 1\n ##### CPU 0 buffer started ####\n init-1 [000] 27.905395: 1:120:R + [001] 11:115:S\n ##### CPU 1 buffer started ####\n \u003cidle\u003e-0 [001] 27.905425: 0:140:R \u003d\u003d\u003e [001] 11:115:R\n init-1 [000] 27.905426: 1:120:D \u003d\u003d\u003e [000] 0:140:R\n \u003cidle\u003e-0 [000] 27.905431: 0:140:R + [000] 4:115:S\n \u003cidle\u003e-0 [000] 27.905451: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n ksoftirqd/0-4 [000] 27.905456: 4:115:S \u003d\u003d\u003e [000] 0:140:R\n udevd-11 [001] 27.905458: 11:115:R + [001] 14:115:R\n \u003cidle\u003e-0 [000] 27.905459: 0:140:R + [000] 4:115:S\n \u003cidle\u003e-0 [000] 27.905462: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n udevd-11 [001] 27.905462: 11:115:R \u003d\u003d\u003e [001] 14:115:R\n ksoftirqd/0-4 [000] 27.905467: 4:115:S \u003d\u003d\u003e [000] 0:140:R\n \u003cidle\u003e-0 [000] 27.905470: 0:140:R + [000] 4:115:S\n \u003cidle\u003e-0 [000] 27.905473: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n ksoftirqd/0-4 [000] 27.905476: 4:115:S \u003d\u003d\u003e [000] 0:140:R\n \u003cidle\u003e-0 [000] 27.905479: 0:140:R + [000] 4:115:S\n \u003cidle\u003e-0 [000] 27.905482: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n ksoftirqd/0-4 [000] 27.905486: 4:115:S \u003d\u003d\u003e [000] 0:140:R\n udevd-14 [001] 27.905499: 14:120:X \u003d\u003d\u003e [001] 11:115:R\n udevd-11 [001] 27.905506: 11:115:R + [000] 1:120:D\n \u003cidle\u003e-0 [000] 27.905515: 0:140:R \u003d\u003d\u003e [000] 1:120:R\n udevd-11 [001] 27.905517: 11:115:S \u003d\u003d\u003e [001] 0:140:R\n[ 27.905557107] initcall ksysfs_init+0x0/0xb0 returned 0 after 3906 msecs\n[ 27.905705736] calling init_jiffies_clocksource+0x0/0x10 @ 1\n[ 27.905779239] initcall init_jiffies_clocksource+0x0/0x10 returned 0 after 0 msecs\n[ 27.906769814] calling pm_init+0x0/0x30 @ 1\n[ 27.906853627] initcall pm_init+0x0/0x30 returned 0 after 0 msecs\n[ 27.906997803] calling pm_disk_init+0x0/0x20 @ 1\n[ 27.907076946] initcall pm_disk_init+0x0/0x20 returned 0 after 0 msecs\n[ 27.907222556] calling swsusp_header_init+0x0/0x30 @ 1\n[ 27.907294325] initcall swsusp_header_init+0x0/0x30 returned 0 after 0 msecs\n[ 27.907439620] calling stop_machine_init+0x0/0x50 @ 1\n init-1 [000] 27.907485: 1:120:R + [000] 2:115:S\n init-1 [000] 27.907490: 1:120:D \u003d\u003d\u003e [000] 2:115:R\n kthreadd-2 [000] 27.907507: 2:115:R + [001] 15:115:R\n \u003cidle\u003e-0 [001] 27.907517: 0:140:R \u003d\u003d\u003e [001] 15:115:R\n kthreadd-2 [000] 27.907517: 2:115:D \u003d\u003d\u003e [000] 0:140:R\n \u003cidle\u003e-0 [000] 27.907521: 0:140:R + [000] 4:115:S\n \u003cidle\u003e-0 [000] 27.907524: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n udevd-15 [001] 27.907527: 15:115:D + [000] 2:115:D\n ksoftirqd/0-4 [000] 27.907537: 4:115:S \u003d\u003d\u003e [000] 2:115:R\n udevd-15 [001] 27.907537: 15:115:D \u003d\u003d\u003e [001] 0:140:R\n kthreadd-2 [000] 27.907546: 2:115:R + [000] 1:120:D\n kthreadd-2 [000] 27.907550: 2:115:S \u003d\u003d\u003e [000] 1:120:R\n init-1 [000] 27.907584: 1:120:R + [000] 15: 0:D\n init-1 [000] 27.907589: 1:120:R + [000] 2:115:S\n init-1 [000] 27.907593: 1:120:D \u003d\u003d\u003e [000] 15: 0:R\n udevd-15 [000] 27.907601: 15: 0:S \u003d\u003d\u003e [000] 2:115:R\n ##### CPU 0 buffer started ####\n kthreadd-2 [000] 27.907616: 2:115:R + [001] 16:115:R\n ##### CPU 1 buffer started ####\n \u003cidle\u003e-0 [001] 27.907620: 0:140:R \u003d\u003d\u003e [001] 16:115:R\n kthreadd-2 [000] 27.907621: 2:115:D \u003d\u003d\u003e [000] 0:140:R\n udevd-16 [001] 27.907625: 16:115:D + [000] 2:115:D\n \u003cidle\u003e-0 [000] 27.907628: 0:140:R + [000] 4:115:S\n udevd-16 [001] 27.907629: 16:115:D \u003d\u003d\u003e [001] 0:140:R\n \u003cidle\u003e-0 [000] 27.907631: 0:140:R \u003d\u003d\u003e [000] 4:115:R\n ksoftirqd/0-4 [000] 27.907636: 4:115:S \u003d\u003d\u003e [000] 2:115:R\n kthreadd-2 [000] 27.907644: 2:115:R + [000] 1:120:D\n kthreadd-2 [000] 27.907647: 2:115:S \u003d\u003d\u003e [000] 1:120:R\n init-1 [000] 27.907657: 1:120:R + [001] 16: 0:D\n \u003cidle\u003e-0 [001] 27.907666: 0:140:R \u003d\u003d\u003e [001] 16: 0:R\n[ 27.907703862] initcall stop_machine_init+0x0/0x50 returned 0 after 0 msecs\n[ 27.907850704] calling filelock_init+0x0/0x30 @ 1\n[ 27.907926573] initcall filelock_init+0x0/0x30 returned 0 after 0 msecs\n[ 27.908071327] calling init_script_binfmt+0x0/0x10 @ 1\n[ 27.908165195] initcall init_script_binfmt+0x0/0x10 returned 0 after 0 msecs\n[ 27.908309461] calling init_elf_binfmt+0x0/0x10 @ 1\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3f5ec13696fd4a33bde42f385406cbb1d3cc96fd", "tree": "3c705c5991fcf0f4968ff790bb2e2ce65c8cbf18", "parents": [ "60a011c736e7dd09a0b01ca6a051a416f3f52ffb" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue Nov 11 23:21:31 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 12 10:17:18 2008 +0100" }, "message": "tracing/fastboot: move boot tracer structs and funcs into their own header.\n\nImpact: Cleanups on the boot tracer and ftrace\n\nThis patch bring some cleanups about the boot tracer headers. The\nfunctions and structures of this tracer have nothing related to ftrace\nand should have so their own header file.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cf569a932217b97e2fc2c48aa597fe29519a0cff", "tree": "85be252713acf89df2b63dd6f5169b7ae1b13ae2", "parents": [ "fa340d9c050e78fb21a142b617304214ae5e0c2d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 23 13:48:22 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 14 10:33:14 2008 +0200" }, "message": "sched: clean up tracepoints\n\nmake it a bit more structured hence more readable.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0a16b6075843325dc402edf80c1662838b929aff", "tree": "124e49d8c0196f3c6eb7aa09a7c4c3c3157fff7a", "parents": [ "4a0897526bbc5c6ac0df80b16b8c60339e717ae2" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Fri Jul 18 12:16:17 2008 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 14 10:30:52 2008 +0200" }, "message": "tracing, sched: LTTng instrumentation - scheduler\n\nInstrument the scheduler activity (sched_switch, migration, wakeups,\nwait for a task, signal delivery) and process/thread\ncreation/destruction (fork, exit, kthread stop). Actually, kthread\ncreation is not instrumented in this patch because it is architecture\ndependent. It allows to connect tracers such as ftrace which detects\nscheduling latencies, good/bad scheduler decisions. Tools like LTTng can\nexport this scheduler information along with instrumentation of the rest\nof the kernel activity to perform post-mortem analysis on the scheduler\nactivity.\n\nAbout the performance impact of tracepoints (which is comparable to\nmarkers), even without immediate values optimizations, tests done by\nHideo Aoki on ia64 show no regression. His test case was using hackbench\non a kernel where scheduler instrumentation (about 5 events in code\nscheduler code) was added. See the \"Tracepoints\" patch header for\nperformance result detail.\n\nChangelog :\n\n- Change instrumentation location and parameter to match ftrace\n instrumentation, previously done with kernel markers.\n\n[ mingo@elte.hu: conflict resolutions ]\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nAcked-by: \u0027Peter Zijlstra\u0027 \u003cpeterz@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ] }