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(parent: 483b4ee) | patch
sched: revert recent sync wakeup changes
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 11 Feb 2009 13:27:17 +0000 (14:27 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 11 Feb 2009 13:43:35 +0000 (14:43 +0100)
commitfc631c82e1734d718ff0832558f64c8f5d185f26
tree7bef1c5f3f2c3f454280026e1a528de526302827tree | snapshot (tar.gz zip)
parent483b4ee60edbefdfbff0dd538fb81f368d9e7c0dcommit | diff
sched: revert recent sync wakeup changes

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>
kernel/sched.c diff | blob | blame | history
kernel/sched_fair.c diff | blob | blame | history