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author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-01-26 17:56:17 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-02-01 10:49:06 +0100 |
commit | d942fb6c7d391baba3dddb566eb735fbf3df8528 (patch) | |
tree | 0340b810c79f873b7aea34298aa22e2ebf740df3 /ipc/mqueue.c | |
parent | f90d4118bacef87894621a3e8aba853fa0c89abc (diff) | |
download | blackbird-op-linux-d942fb6c7d391baba3dddb566eb735fbf3df8528.tar.gz blackbird-op-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 'ipc/mqueue.c')
0 files changed, 0 insertions, 0 deletions