Messages in this thread | | | Date | Tue, 13 Aug 2002 19:42:48 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [patch] kwaitd, 2.5.31-A1 |
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On Tue, 13 Aug 2002, Andrew Morton wrote:
> Andrea's kernels have keventd running SCHED_RR, and that's appropriate > to this application also. Not sure about AIO though.
actually, the default (non-RT) priority of kwaitd is a feature. If there's lots of exit() activity with lots or running threads (which is the typical case on an exit-all for threads) then the kwaitd work will nicely cluster up due it *not* always having the highest priority. This makes the cost of kwaitd equivalent to the cost of per-CPU lists, asymptotically.
Ingo
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