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| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-26 17:56:17 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-02-01 10:49:06 +0100 |
| commit | d942fb6c7d391baba3dddb566eb735fbf3df8528 (patch) | |
| tree | 0340b810c79f873b7aea34298aa22e2ebf740df3 /include/linux/kernel.h | |
| parent | cpuset: fix possible deadlock in async_rebuild_sched_domains (diff) | |
| download | wireguard-linux-d942fb6c7d391baba3dddb566eb735fbf3df8528.tar.xz wireguard-linux-d942fb6c7d391baba3dddb566eb735fbf3df8528.zip | |
sched: fix sync wakeups
Pawel Dziekonski reported that the openssl benchmark and his
quantum chemistry application both show slowdowns due to the
scheduler under-parallelizing execution.
The reason are pipe wakeups still doing 'sync' wakeups which
overrides the normal buddy wakeup logic - even if waker and
wakee are loosely coupled.
Fix an inversion of logic in the buddy wakeup code.
Reported-by: Pawel Dziekonski <dzieko@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/kernel.h')
0 files changed, 0 insertions, 0 deletions