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SubjectRe: [BENCHMARK] scheduler tunables with contest - prio_bonus_ratio
Date
On Friday 20 December 2002 00:53, Robert Love wrote:

Hi Robert,

> 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...

> --- 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;
FYI: These changes are a horrible slowdown of all apps while kernel
compilation.

ciao, Marc
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