Messages in this thread | | | Date | Fri, 19 Sep 2014 09:29:19 -0400 | From | Johannes Weiner <> | Subject | Re: [patch] mm: memcontrol: lockless page counters |
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Hi Dave,
this patch removes the lock you saw with will-it-scale/page_fault2 entirely, is there a chance you could give it a spin? It's based on v3.17-rc4-mmots-2014-09-12-17-13-4 and that memcg THP fix. That kernel also includes the recent root-memcg revert, so you'd have to run it in a memcg; which is as easy as:
mkdir /sys/fs/cgroup/memory/foo echo $$ >/sys/fs/cgroup/memory/foo/tasks perf record -g -a ./runtest.py page_fault2
Thanks!
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