Messages in this thread | | | Subject | Re: [RFC PATCH 00/19] Cleanup and optimise the page allocator V2 | From | Peter Zijlstra <> | Date | Wed, 04 Mar 2009 08:23:34 +0100 |
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On Wed, 2009-03-04 at 10:05 +0800, Zhang, Yanmin wrote: > FAIR_GROUP_SCHED is a feature to support configurable cpu weight for different users. > We did find it takes lots of time to check/update the share weight which might create > lots of cache ping-pang. With sysbench(oltp)+mysql, that becomes more severe because > mysql runs as user mysql and sysbench runs as another regular user. When starting > the testing with 1 thread in command line, there are 2 mysql threads and 1 sysbench > thread are proactive.
cgroup based group scheduling doesn't bother with users. So unless you create sched-cgroups your should all be in the same (root) group.
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