From: Kamezawa Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
To: Sha Zhengju <handai.szj-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
mhocko-AlSwsSmVLrQ@public.gmane.org,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
gthelen-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org,
Sha Zhengju <handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH V3 7/8] memcg: disable memcg page stat accounting code when not in use
Date: Fri, 28 Dec 2012 10:06:57 +0900 [thread overview]
Message-ID: <50DCF0B1.4060000@jp.fujitsu.com> (raw)
In-Reply-To: <1356456477-14780-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
(2012/12/26 2:27), Sha Zhengju wrote:
> From: Sha Zhengju <handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
>
> It's inspired by a similar optimization from Glauber Costa
> (memcg: make it suck faster; https://lkml.org/lkml/2012/9/25/154).
> Here we use jump label to patch the memcg page stat accounting code
> in or out when not used. when the first non-root memcg comes to
> life the code is patching in otherwise it is out.
>
> Signed-off-by: Sha Zhengju <handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
next prev parent reply other threads:[~2012-12-28 1:06 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-25 17:18 [PATCH V3 0/8] Per-cgroup page stat accounting Sha Zhengju
2012-12-25 17:20 ` [PATCH V3 1/8] memcg: remove MEMCG_NR_FILE_MAPPED Sha Zhengju
2012-12-25 17:24 ` [PATCH V3 3/8] use vfs __set_page_dirty interface instead of doing it inside filesystem Sha Zhengju
[not found] ` <1356456261-14579-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2012-12-28 0:41 ` Kamezawa Hiroyuki
2012-12-25 17:26 ` [PATCH V3 4/8] memcg: add per cgroup dirty pages accounting Sha Zhengju
2013-01-02 10:44 ` Michal Hocko
2013-01-05 4:48 ` Sha Zhengju
2013-01-06 20:02 ` Hugh Dickins
[not found] ` <alpine.LNX.2.00.1301061135400.29149-fupSdm12i1nKWymIFiNcPA@public.gmane.org>
2013-01-07 7:49 ` Kamezawa Hiroyuki
2013-01-09 5:15 ` Hugh Dickins
[not found] ` <alpine.LNX.2.00.1301082030100.5319-fupSdm12i1nKWymIFiNcPA@public.gmane.org>
2013-01-09 7:24 ` Kamezawa Hiroyuki
2013-01-09 14:35 ` Sha Zhengju
[not found] ` <CAFj3OHVUx0bZyEGQU_CApVbgz7SrX3BQ+0U5fRV=En800wv+cQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-01-09 14:47 ` Michal Hocko
[not found] ` <CAFj3OHXKyMO3gwghiBAmbowvqko-JqLtKroX2kzin1rk=q9tZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-01-07 7:25 ` Kamezawa Hiroyuki
[not found] ` <50EA7860.6030300-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2013-01-09 15:02 ` Sha Zhengju
[not found] ` <CAFj3OHXMgRG6u2YoM7y5WuPo2ZNA1yPmKRV29FYj9B6Wj_c6Lw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-01-10 2:16 ` Kamezawa Hiroyuki
2013-01-10 4:26 ` Sha Zhengju
[not found] ` <CAFj3OHW=n22veXzR27qfc+10t-nETU=B78NULPXrEDT1S-KsOw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-01-10 5:03 ` Kamezawa Hiroyuki
[not found] ` <50EE4B84.5080205-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2013-01-10 8:28 ` Sha Zhengju
2013-05-03 9:11 ` Michal Hocko
2013-05-03 9:59 ` Sha Zhengju
2013-01-06 20:07 ` Greg Thelen
[not found] ` <xr93obh2krcr.fsf-aSPv4SP+Du0KgorLzL7FmE7CuiCeIGUxQQ4Iyu8u01E@public.gmane.org>
2013-01-09 9:45 ` Sha Zhengju
2012-12-25 17:26 ` [PATCH V3 5/8] memcg: add per cgroup writeback " Sha Zhengju
2012-12-28 0:52 ` Kamezawa Hiroyuki
[not found] ` <1356456409-14701-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2013-01-02 11:15 ` Michal Hocko
2013-01-06 20:07 ` Greg Thelen
2013-01-09 9:08 ` Sha Zhengju
2012-12-25 17:27 ` [PATCH V3 6/8] memcg: Don't account root_mem_cgroup page statistics Sha Zhengju
2012-12-28 1:04 ` Kamezawa Hiroyuki
[not found] ` <50DCF00B.5040100-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2013-01-05 7:38 ` Sha Zhengju
[not found] ` <1356456447-14740-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2013-01-02 12:27 ` Michal Hocko
[not found] ` <20130102122712.GE22160-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-01-05 10:52 ` Sha Zhengju
2013-01-09 12:57 ` Michal Hocko
[not found] ` <1356455919-14445-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2012-12-25 17:22 ` [PATCH V3 2/8] Make TestSetPageDirty and dirty page accounting in one func Sha Zhengju
2012-12-28 0:39 ` Kamezawa Hiroyuki
2013-01-05 2:34 ` Sha Zhengju
2013-01-02 9:08 ` Michal Hocko
[not found] ` <20130102090803.GB22160-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-01-05 2:49 ` Sha Zhengju
[not found] ` <CAFj3OHUCQkqB2+ky9wxFpkNYcn2=6t9Qd7XFf3RBY0F4Wxyqcg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-01-05 10:45 ` Michal Hocko
2012-12-25 17:27 ` [PATCH V3 7/8] memcg: disable memcg page stat accounting code when not in use Sha Zhengju
[not found] ` <1356456477-14780-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2012-12-28 1:06 ` Kamezawa Hiroyuki [this message]
2012-12-28 1:45 ` Kamezawa Hiroyuki
2013-01-05 11:06 ` Sha Zhengju
2013-01-02 13:35 ` Michal Hocko
2012-12-25 17:28 ` [PATCH V3 8/8] memcg: Document cgroup dirty/writeback memory statistics Sha Zhengju
[not found] ` <1356456501-14818-1-git-send-email-handai.szj-3b8fjiQLQpfQT0dZR+AlfA@public.gmane.org>
2012-12-28 1:10 ` Kamezawa Hiroyuki
[not found] ` <50DCF185.7050408-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2013-01-06 2:55 ` Sha Zhengju
2013-01-02 13:36 ` Michal Hocko
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