sched: Implement demand based update_cfs_load()

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When the system is busy, dilation of rq->next_balance makes lb->update_shares()
insufficiently frequent for threads which don't sleep (no dequeue/enqueue
updates).  Adjust for this by making demand based updates based on the
accumulation of execution time sufficient to wrap our averaging window.

Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101115234938.291159744@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Paul Turner 2010-11-15 15:47:08 -08:00 • committed by Ingo Molnar

parent c66eaf619c

commit 3b3d190ec3

2 changed files with 20 additions and 1 deletions

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9

kernel/sched.c

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12

kernel/sched_fair.c

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