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sched: fix vslice

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vslice was missing a factor NICE_0_LOAD, as weight is in
weight*NICE_0_LOAD units.

the effect of this bug was larger initial slices and
thus latency-noisier forks.

Signed-off-by: Peter Zijlstra <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Peter Zijlstra 2007-11-09 22:39:37 +01:00 • committed by Ingo Molnar
commit 10b777246c
1 changed files with 1 additions and 0 deletions
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1
kernel/sched_fair.c
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@ -259,6 +259,7 @@ static u64 __sched_vslice(unsigned long rq_weight, unsigned long nr_running)
{
u64 vslice = __sched_period(nr_running);
vslice *= NICE_0_LOAD;
do_div(vslice, rq_weight);
return vslice;