sched: Re-tune the scheduler latency defaults to decrease worst-case latencies

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Reduce the latency target from 20 msecs to 5 msecs.

Why? Larger latencies increase spread, which is good for scaling,
but bad for worst case latency.

We still have the ilog(nr_cpus) rule to scale up on bigger
server boxes.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1252486344.28645.18.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Mike Galbraith 2009-09-09 15:41:37 +02:00 • committed by Ingo Molnar

parent 2bba22c50b

commit 172e082a91

1 changed files with 6 additions and 6 deletions

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kernel/sched_fair.c

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