Messages in this thread | | | Date | Fri, 18 Jul 2003 20:49:45 +0200 | From | Mike Galbraith <> | Subject | Re: [PATCH] O6int for interactivity |
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At 09:52 AM 7/18/2003 -0700, Davide Libenzi wrote: >On Fri, 18 Jul 2003, Mike Galbraith wrote: > > > Telling to not mess with my kernel threads seems to have fixed it here... > > no stalls during the whole contest run. New contest numbers attached. > >It is ok to use unfairness towards kernel threads to avoid starvation. We >control them. It is right to apply uncontrolled unfairness to userspace >tasks though.
In this case, it appears that the lowered priority was causing trouble. One test run isn't enough to say 100%, but what I read out of the numbers is that at least kswapd needs to be able to preempt.
wrt the uncontrolled unfairness, I've muttered about this before. I've also tried (quite) a few things, but nothing yet has been good enough to... require trashing that I couldn't do here ;-)
-Mike
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