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authorIngo Molnar <mingo@elte.hu>2007-06-01 00:47:16 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-01 08:18:30 -0700
commitc1a834dc704763673df10282995257f2de93cbe9 (patch)
tree66a0bc5ffbf6732eaa5fc6f554c13b235005c4cd /drivers/firewire
parent9fcc15ec3c1c287a781a4620e52522b6186f26f6 (diff)
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>
Diffstat (limited to 'drivers/firewire')
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