On Mon, 2008-01-28 at 13:56 +0100, Ingo Molnar wrote: > * Peter Zijlstra <[EMAIL PROTECTED]> wrote: > > > > i think it would be OK to do half of this: make it easier to preempt > > > a +nice task. Michel, do you really need the -nice portion as well? > > > It's not a problem to super-preempt positively reniced tasks, but it > > > can be quite annoying if negatively reniced tasks have super-slices. > > > > This should do that (unless I need a stronger cup of tea). > > cool - thanks Peter. Michel, could you check Peter's patch, does it > resolve all the interactivity problems you've been seeing?
I'm now running with this patch and Srivatsa's patch, and together they provide good interactivity even with CONFIG_FAIR_USER_SCHED enabled and the default value of /proc/sys/kernel/sched_wakeup_granularity_ns. :) So both patches seem to have the expected effect. /proc/sys/kernel/sched_features contains 7. Thanks, -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
