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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
Thanks. That looks fair enough. My only concern is that io_load performance is
worse with lower prio_bonus_ratio settings and io loads are the most felt.
I was thinking of changing what it varied. I was going to leave the timeslice
fixed and use it to change the prio_bonus_ratio under load. Although that
kind of defeats the purpose of having it in the first place since it is
supposed to decide what is interactive under load?
Con
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This archive was generated by hypermail 2b29 : Mon Dec 23 2002 - 22:00:25 EST