Messages in this thread | | | Subject | Re: pthread_mutex_unlock (was Re: sched_yield() makes OpenLDAP slow) | From | Lee Revell <> | Date | Wed, 25 Jan 2006 16:06:51 -0500 |
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On Wed, 2006-01-25 at 10:26 -0800, Howard Chu wrote: > The SUSv3 text seems pretty clear. It says "WHEN > pthread_mutex_unlock() > is called, ... the scheduling policy SHALL decide ..." It doesn't say > MAY, and it doesn't say "some undefined time after the call."
This does NOT require pthread_mutex_unlock() to cause the scheduler to immediately pick a new runnable process. It only says it's up the the scheduling POLICY what to do. The policy could be "let the unlocking thread finish its timeslice then reschedule".
Lee
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