Messages in this thread | | | Subject | Re: [PATCH 3/3] futex: fix miss ordered wakeups | From | Daniel Walker <> | Date | Thu, 22 May 2008 22:15:19 -0700 |
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On Thu, 2008-05-22 at 22:02 -0700, Ulrich Drepper wrote: > On Thu, May 22, 2008 at 12:00 AM, Daniel Walker <dwalker@mvista.com> wrote: > > This patch corrects this issue, so the tasks are always woken in priority > > order. > > This is completely unnecessary overhead for 99.999% of all cases. It > was deliberately not done. You slowing things down for everybody. If > you want priorities, then use PI futexes.
That's the problem we aren't just covering 99.99% we're trying to cover 100% of cases.. If we don't do it in that one case we may as well not do it at all.
Daniel
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