sched: revert recent sync wakeup changes

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Intel reported a 10% regression (mysql+sysbench) on a 16-way machine
with these patches:

  1596e29: sched: symmetric sync vs avg_overlap
  d942fb6: sched: fix sync wakeups

Revert them.

Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Bisected-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Peter Zijlstra 2009-02-11 14:27:17 +01:00 • committed by Ingo Molnar

parent 483b4ee60e

commit fc631c82e1

2 changed files with 9 additions and 12 deletions

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10

kernel/sched.c

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11

kernel/sched_fair.c

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