Re: [BENCHMARK] scheduler tunables with contest - prio_bonus_ratio

[Marc-Christian Petersen <m.c.p@wolk-project.de>]

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