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author | Ingo Molnar <[email protected]> | 2009-10-09 15:58:20 +0200 |
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committer | Ingo Molnar <[email protected]> | 2009-10-09 15:58:20 +0200 |
commit | e7ab0f7b50bc4688fb5cf65de5d42e3b882fb8d1 (patch) | |
tree | 448411e8204d9020f3d1fbbf7cabcad2932ada6d /lib/string_helpers.c | |
parent | f5dc37530ba8a35aae0f7f4f13781d1904f71e94 (diff) |
Revert "x86, timers: Check for pending timers after (device) interrupts"
This reverts commit 9bcbdd9c58617f1301dd4f17c738bb9bc73aca70.
The real bug producing LatencyTop latencies has been fixed in:
f5dc375: sched: Update the clock of runqueue select_task_rq() selected
And the commit being reverted here triggers local timer processing
from every device IRQ. If device IRQs come in at a high frequency,
this could cause a performance regression.
The commit being reverted here purely 'fixed' the reported latency
as a side effect, because CPUs were being moved out of idle more
often.
Acked-by: Peter Zijlstra <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Frans Pop <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Thomas Gleixner <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions