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Revision 1.17 / (download) - annotate - [select for diffs], Fri Feb 22 15:02:07 2008 UTC (9 years, 8 months ago) by dgc.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.16: +1 -0
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Diff to previous 1.16 (colored)
Use power-of-2 sized buffers to reduce overhead Now that the ktrace_enter() code is using atomics, the non-power-of-2 buffer sizes - which require modulus operations to get the index - are showing up as using substantial CPU in the profiles. Force the buffer sizes to be rounded up to the nearest power of two and use masking rather than modulus operations to convert the index counter to the buffer index. This reduces ktrace_enter overhead to 8% of a CPU time, and again almost halves the trace intensive test runtime. Merge of xfs-linux-melb:xfs-kern:30538a by kenmcd. Use power-of-2 buffer sizes so we can use more efficient masking operations to get the buffer index.
Revision 1.16 / (download) - annotate - [select for diffs], Fri Feb 22 15:01:20 2008 UTC (9 years, 8 months ago) by dgc.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.15: +1 -1
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Diff to previous 1.15 (colored)
Use atomic counters for ktrace buffer indexes ktrace_enter() is consuming vast amounts of CPU time due to the use of a single global lock for protecting buffer index increments. Change it to use per-buffer atomic counters - this reduces ktrace_enter() overhead during a trace intensive test on a 4p machine from 58% of all CPU time to 12% and halves test runtime. Merge of xfs-linux-melb:xfs-kern:30537a by kenmcd. Use per-ktrace buffer atomic index counters and remove the global ktrace index lock that is causing performance problems on ktrace kernels.
Revision 1.15 / (download) - annotate - [select for diffs], Fri Sep 21 16:09:12 2007 UTC (10 years, 1 month ago) by donaldd.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.14: +0 -2
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Diff to previous 1.14 (colored)
Remove spin.h remove spinlock init abstraction macro in spin.h, remove the callers, and remove the file. Move no-op spinlock_destroy to xfs_linux.h Cleanup spinlock locals in xfs_mount.c Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Merge of xfs-linux-melb:xfs-kern:29751a by kenmcd. Remove spin.h
Revision 1.14 / (download) - annotate - [select for diffs], Fri Sep 21 06:17:02 2007 UTC (10 years, 1 month ago) by donaldd.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.13: +0 -1
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Diff to previous 1.13 (colored)
ktrace kt_lock is unused, remove it. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Merge of xfs-linux-melb:xfs-kern:29747a by kenmcd. Remove unused kt_lock
Revision 1.13 / (download) - annotate - [select for diffs], Sun Oct 2 12:47:06 2005 UTC (12 years ago) by hch
Branch: MAIN
Changes since 1.12: +1 -1
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Fix sparse warnings in ktrace.[ch]
Revision 1.12 / (download) - annotate - [select for diffs], Fri Sep 23 03:51:28 2005 UTC (12 years, 1 month ago) by nathans.longdrop.melbourne.sgi.com
Branch: MAIN
Changes since 1.11: +12 -26
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Diff to previous 1.11 (colored)
Update license/copyright notices to match the prefered SGI boilerplate. Merge of xfs-linux-melb:xfs-kern:23903a by kenmcd.
Revision 1.11 / (download) - annotate - [select for diffs], Fri Feb 6 04:26:12 2004 UTC (13 years, 8 months ago) by nathans
Branch: MAIN
Changes since 1.10: +1 -1
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Diff to previous 1.10 (colored)
Sync up with external trees, fixing the build after support source renames.
Revision 1.10 / (download) - annotate - [select for diffs], Fri Oct 17 03:29:52 2003 UTC (14 years ago) by nathans
Branch: MAIN
Changes since 1.9: +8 -12
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Diff to previous 1.9 (colored)
Fix ktrace code - dont build unilaterally, and do earlier init for pagebuf use.
Revision 1.9 / (download) - annotate - [select for diffs], Fri Jun 27 18:04:26 2003 UTC (14 years, 4 months ago) by cattelan
Branch: MAIN
Changes since 1.8: +105 -0
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Diff to previous 1.8 (colored)
The Big Move linux/fs/xfs/support/ktrace.h 1.7 Renamed to support/ktrace.h
Revision 1.8 / (download) - annotate - [select for diffs], Fri Jun 27 17:57:21 2003 UTC (14 years, 4 months ago) by cattelan
Branch: MAIN
CVS Tags: DENUKE
Changes since 1.7: +0 -105
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Diff to previous 1.7 (colored)
Nuke
Revision 1.7 / (download) - annotate - [select for diffs], Tue Apr 15 23:16:46 2003 UTC (14 years, 6 months ago) by cattelan
Branch: MAIN
CVS Tags: XFS-1_3_0pre1
Changes since 1.6: +7 -7
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Diff to previous 1.6 (colored)
Whitespace cleanup Clean up some whitespace... revert some whitespace changes from previous whitespace cleanup (incorrect tabs)
Revision 1.6 / (download) - annotate - [select for diffs], Wed Jul 10 19:00:42 2002 UTC (15 years, 3 months ago) by sandeen
Branch: MAIN
Changes since 1.5: +21 -21
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Diff to previous 1.5 (colored)
whitespace cleanup
Revision 1.5 / (download) - annotate - [select for diffs], Tue Jun 4 16:30:46 2002 UTC (15 years, 4 months ago) by sandeen
Branch: MAIN
Changes since 1.4: +1 -1
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Update copyright dates
Revision 1.4 / (download) - annotate - [select for diffs], Tue May 21 04:27:18 2002 UTC (15 years, 5 months ago) by nathans
Branch: MAIN
Changes since 1.3: +105 -0
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Diff to previous 1.3 (colored)
linux/include/linux/xfs_support/ktrace.h 1.1 Renamed to linux/fs/xfs/support/ktrace.h changes to fold xfs_support code back into XFS (the other sgi projects using this will be / have been fixed). reduces our footprint on the base kernel. NB: xfs_support.o as a distinct module no longer exists.
Revision 1.3 / (download) - annotate - [select for diffs], Wed Mar 14 06:04:19 2001 UTC (16 years, 7 months ago) by kaos
Branch: MAIN
Changes since 1.2: +0 -106
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linux/fs/xfs/support/ktrace.h 1.2 Renamed to linux/fs/xfs_support/ktrace.h
Revision 1.2 / (download) - annotate - [select for diffs], Thu Nov 16 01:57:15 2000 UTC (16 years, 11 months ago) by dxm
Branch: MAIN
Changes since 1.1: +3 -0
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Diff to previous 1.1 (colored)
use kmem_zone_t and kmem_zone_s not xfs aliases add kmem_init and kmem_uninit to alloc & dealoc zones and don't export
Revision 1.1 / (download) - annotate - [select for diffs], Tue Nov 14 02:57:58 2000 UTC (16 years, 11 months ago) by dxm
Branch: MAIN
Split XFS support code into xfs_support module