From: Johannes Weiner <hannes@cmpxchg.org>
To: linux-mm@kvack.org
Cc: Michal Hocko <mhocko@suse.cz>, Greg Thelen <gthelen@google.com>,
Dave Hansen <dave@sr71.net>,
cgroups@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch] mm: memcontrol: lockless page counters
Date: Fri, 19 Sep 2014 09:29:19 -0400 [thread overview]
Message-ID: <20140919132919.GA16184@cmpxchg.org> (raw)
In-Reply-To: <1411132928-16143-1-git-send-email-hannes@cmpxchg.org>
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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next prev parent reply other threads:[~2014-09-19 13:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-19 13:22 Johannes Weiner
2014-09-19 13:29 ` Johannes Weiner [this message]
2014-09-22 14:41 ` Vladimir Davydov
2014-09-22 18:57 ` Johannes Weiner
2014-09-23 11:06 ` Vladimir Davydov
2014-09-23 13:28 ` Johannes Weiner
2014-09-23 15:21 ` Vladimir Davydov
2014-09-23 17:05 ` Johannes Weiner
2014-09-24 8:02 ` Vladimir Davydov
2014-09-24 13:33 ` Michal Hocko
2014-09-24 16:51 ` Johannes Weiner
2014-09-24 14:16 ` Michal Hocko
2014-09-24 17:00 ` Johannes Weiner
2014-09-25 13:07 ` Michal Hocko
2014-09-22 14:44 ` Michal Hocko
2014-09-22 15:50 ` Johannes Weiner
2014-09-22 17:28 ` Michal Hocko
2014-09-22 19:58 ` Johannes Weiner
2014-09-23 13:25 ` Michal Hocko
2014-09-23 14:05 ` Johannes Weiner
2014-09-23 14:28 ` Michal Hocko
2014-09-23 22:33 ` David Rientjes
2014-09-23 7:46 ` Kamezawa Hiroyuki
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