| commit | c1a834dc704763673df10282995257f2de93cbe9 | |
| author | Ingo Molnar <mingo@elte.hu> | |
| Fri, 1 Jun 2007 07:47:16 +0000 (1 00:47 -0700) | ||
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | |
| Fri, 1 Jun 2007 15:18:30 +0000 (1 08:18 -0700) | ||
| tree | 66a0bc5ffbf6732eaa5fc6f554c13b235005c4cd | treesnapshot (tar.gz zip) |
| parent | 9fcc15ec3c1c287a781a4620e52522b6186f26f6 | commitdiff |
timer stats: speedups
Make timer-stats have almost zero overhead when enabled in the config but
not used. (this way distros can enable it more easily)
Also update the documentation about overhead of timer_stats - it was
written for the first version which had a global lock and a linear list
walk based lookup ;-)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make timer-stats have almost zero overhead when enabled in the config but
not used. (this way distros can enable it more easily)
Also update the documentation about overhead of timer_stats - it was
written for the first version which had a global lock and a linear list
walk based lookup ;-)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| Documentation/hrtimer/timer_stats.txt | diffblobblamehistory | |
| kernel/time/timer_stats.c | diffblobblamehistory | |
| lib/Kconfig.debug | diffblobblamehistory |