Messages in this thread | | | Date | Tue, 28 Mar 2006 17:46:04 -0500 | From | Bill Davidsen <> | Subject | Re: [PATCH] 2.6.16 - futex: small optimization (?) |
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Ulrich Drepper wrote: > On 3/27/06, Pierre PEIFFER <pierre.peiffer@bull.net> wrote: >> I found a (optimization ?) problem in the futexes, during a futex_wake, >> if the waiter has a higher priority than the waker. > > There are no such situations anymore in an optimal userlevel > implementation. The last problem (in pthread_cond_signal) was fixed > by the addition of FUTEX_WAKE_OP. The userlevel code you're looking > at is simply not optimized for the modern kernels.
What are you suggesting here, that the kernel can be inefficient as long as the user has a way to program around it?
-- -bill davidsen (davidsen@tmr.com) "The secret to procrastination is to put things off until the last possible moment - but no longer" -me
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