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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-12-03 12:00:07 -0500
committerIngo Molnar <mingo@elte.hu>2009-12-09 04:03:09 -0500
commitcd8ad40de36c2fe75f3b731bd70198b385895246 (patch)
treec1e6d5c8dddfa0d9ad643a1df8e92f26700e3143 /include/net/ip.h
parentfb58bac5c75bfff8bbf7d02071a10a62f32fe28b (diff)
sched: cgroup: Implement different treatment for idle shares
When setting the weight for a per-cpu task-group, we have to put in a phantom weight when there is no work on that cpu, otherwise we'll not service that cpu when new work gets placed there until we again update the per-cpu weights. We used to add these phantom weights to the total, so that the idle per-cpu shares don't get inflated, this however causes the non-idle parts to get deflated, causing unexpected weight distibutions. Reverse this, so that the non-idle shares are correct but the idle shares are inflated. Reported-by: Yasunori Goto <y-goto@jp.fujitsu.com> Tested-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1257934048.23203.76.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/net/ip.h')
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