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On Thu, 2002-12-19 at 18:42, Con Kolivas wrote: > I guess this explains why my variable timeslice thingy in -ck helps on the > desktop. Basically by shortening the timeslice it is masking the effect of > the interactivity estimator under load. That is, it is treating the symptoms > of having an interactivity estimator rather than tackling the cause. You would probably get the same effect or better by setting prio_bonus_ratio lower (or off). Setting it lower will also give less priority bonus/penalty and not reinsert the tasks so readily into the active array. Something like the attached patch may help... Robert Love --- linux-2.5.52/kernel/sched.c 2002-12-19 18:47:53.000000000 -0500 +++ linux/kernel/sched.c 2002-12-19 18:48:05.000000000 -0500 @@ -66,8 +66,8 @@ int child_penalty = 95; int parent_penalty = 100; int exit_weight = 3; -int prio_bonus_ratio = 25; -int interactive_delta = 2; +int prio_bonus_ratio = 5; +int interactive_delta = 1; int max_sleep_avg = 2 * HZ; int starvation_limit = 2 * HZ; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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