)]}' { "log": [ { "commit": "ede86cc473defab74d778aeac14b19f43129d4d1", "tree": "19da8009accf1737171f5949413e46a9086d5fdc", "parents": [ "23f8b79eae8a74e42a006ffa7c456e295c7e1c0d" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Sun Oct 05 20:50:06 2008 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Sun Oct 05 20:50:06 2008 -0400" }, "message": "ext4: Add debugging markers that can be used by systemtap\n\nThis debugging markers are designed to debug problems such as the\nrandom filesystem latency problems reported by Arjan.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "af5bc92dded4d98dfeabc8b5b9812571345b263d", "tree": "5cfaf27e673a09d3ad1341c175559be0a3ea990d", "parents": [ "e5f8eab8851dff162e7ade46f084cb8575dc45f7" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon Sep 08 22:25:24 2008 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Mon Sep 08 22:25:24 2008 -0400" }, "message": "ext4: Fix whitespace checkpatch warnings/errors\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n" }, { "commit": "d755fb384250d6bd7fd18a0930e71965acc8e72e", "tree": "7913bce90918cd26c8a5fe05f6c8943828e333bb", "parents": [ "654b4908bc17a6318d18f3036fecc5155de92f55" ], "author": { "name": "Eric Sandeen", "email": "sandeen@redhat.com", "time": "Fri Jul 11 19:27:31 2008 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Fri Jul 11 19:27:31 2008 -0400" }, "message": "ext4: call blkdev_issue_flush on fsync\n\nTo ensure that bits are truly on-disk after an fsync,\nwe should call blkdev_issue_flush if barriers are supported.\n\nInspired by an old thread on barriers, by reiserfs \u0026 xfs\nwhich do the same, and by a patch SuSE ships with their kernel\n\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "3dcf54515aa4981a647ad74859199032965193a5", "tree": "b95d895bb2f6fa15be29411b15d538c21b0de930", "parents": [ "216553c4b7f3e3e2beb4981cddca9b2027523928" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Apr 29 18:13:32 2008 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Tue Apr 29 18:13:32 2008 -0400" }, "message": "ext4: move headers out of include/linux\n\nMove ext4 headers out of include/linux. This is just the trivial move,\nthere\u0027s some more thing that could be done later. \n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n" }, { "commit": "53c550e9750434ddc4275fe0405170e0d1b46731", "tree": "e810f7e68b54f41c8ab5d5dad9b1c7dd8068c61a", "parents": [ "97bd42b9c8be748ad85b362ba3bd401f4d35be80" ], "author": { "name": "Hisashi Hifumi", "email": "hifumi.hisashi@oss.ntt.co.jp", "time": "Thu Apr 17 10:38:59 2008 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Thu Apr 17 10:38:59 2008 -0400" }, "message": "ext4: fdatasync should skip metadata writeout when overwriting\n\nCurrently fdatasync is identical to fsync in ext3.\n\nI think fdatasync should skip journal flush in data\u003dordered and\ndata\u003dwriteback mode when it overwrites to already-instantiated blocks on\nHDD. When I_DIRTY_DATASYNC flag is not set, fdatasync should skip journal\nwriteout because this indicates only atime or/and mtime updates.\n\nFollowing patch is the same approach of ext2\u0027s fsync code(ext2_sync_file).\n\nI did a performance test using the sysbench.\n\n#sysbench --num-threads\u003d128 --max-requests\u003d50000 --test\u003dfileio --file-total-size\u003d128G\n--file-test-mode\u003drndwr --file-fsync-mode\u003dfdatasync run\n\nThe result on ext3 was:\n\n\t-2.6.24\n\tOperations performed: 0 Read, 50080 Write, 59600 Other \u003d 109680 Total\n\tRead 0b Written 782.5Mb Total transferred 782.5Mb (12.116Mb/sec)\n\t 775.45 Requests/sec executed\n\n\tTest execution summary:\n\t total time: 64.5814s\n\t total number of events: 50080\n\t total time taken by event execution: 3713.9836\n\t per-request statistics:\n\t min: 0.0000s\n\t avg: 0.0742s\n\t max: 0.9375s\n\t approx. 95 percentile: 0.2901s\n\n\tThreads fairness:\n\t events (avg/stddev): 391.2500/23.26\n\t execution time (avg/stddev): 29.0155/1.99\n\n\t-2.6.24-patched\n\tOperations performed: 0 Read, 50009 Write, 61596 Other \u003d 111605 Total\n\tRead 0b Written 781.39Mb Total transferred 781.39Mb (16.419Mb/sec)\n\t1050.83 Requests/sec executed\n\n\tTest execution summary:\n\t total time: 47.5900s\n\t total number of events: 50009\n\t total time taken by event execution: 2934.5768\n\t per-request statistics:\n \t min: 0.0000s\n\t avg: 0.0587s\n \t max: 0.8938s\n\t approx. 95 percentile: 0.1993s\n\n\tThreads fairness:\n\t events (avg/stddev): 390.6953/22.64\n\t execution time (avg/stddev): 22.9264/1.17\n\nFilesystem I/O throughput was improved.\n\nSigned-off-by :Hisashi Hifumi \u003chifumi.hisashi@oss.ntt.co.jp\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n\n" }, { "commit": "ac39849ddc19c0bbb39068497139ac45bccd4321", "tree": "b5a6a17f1cd9c98374b91feafcf554bf5197c44d", "parents": [ "d8dd0b45438d62fc4a93d8e3cee9985710d01e40" ], "author": { "name": "Aneesh Kumar K.V", "email": "aneesh.kumar@linux.vnet.ibm.com", "time": "Tue Oct 16 18:38:25 2007 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Wed Oct 17 18:50:03 2007 -0400" }, "message": "ext4: sparse fixes\n\nSigned-off-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n" }, { "commit": "dab291af8d6307a3075c3d67d0cc8f98e646cb94", "tree": "a2207ab3e2e00472e5e3c969ad0dd211fb9e4151", "parents": [ "a920e9416b3469994860ab552dfd7fd5a5aff162" ], "author": { "name": "Mingming Cao", "email": "cmm@us.ibm.com", "time": "Wed Oct 11 01:21:01 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 11 11:14:16 2006 -0700" }, "message": "[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd\n\nReworked from a patch by Mingming Cao and Randy Dunlap\n\nSigned-off-By: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "617ba13b31fbf505cc21799826639ef24ed94af0", "tree": "2a41e8c993f7c1eed115ad24047d546ba56cbdf5", "parents": [ "ac27a0ec112a089f1a5102bc8dffc79c8c815571" ], "author": { "name": "Mingming Cao", "email": "cmm@us.ibm.com", "time": "Wed Oct 11 01:20:53 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 11 11:14:15 2006 -0700" }, "message": "[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols\n\nMingming Cao originally did this work, and Shaggy reproduced it using some\nscripts from her.\n\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ac27a0ec112a089f1a5102bc8dffc79c8c815571", "tree": "bcbcc0a5a88bf99b35119d9d9d660a37c503d787", "parents": [ "502717f4e112b18d9c37753a32f675bec9f2838b" ], "author": { "name": "Dave Kleikamp", "email": "shaggy@austin.ibm.com", "time": "Wed Oct 11 01:20:50 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 11 11:14:15 2006 -0700" }, "message": "[PATCH] ext4: initial copy of files from ext3\n\nStart of the ext4 patch series. See Documentation/filesystems/ext4.txt for\ndetails.\n\nThis is a simple copy of the files in fs/ext3 to fs/ext4 and\n/usr/incude/linux/ext3* to /usr/include/ex4*\n\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ] }