From: Ying Han <yinghan@google.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Minchan Kim <minchan.kim@gmail.com>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Tejun Heo <tj@kernel.org>, Pavel Emelyanov <xemul@openvz.org>,
Andrew Morton <akpm@linux-foundation.org>,
Li Zefan <lizf@cn.fujitsu.com>, Mel Gorman <mel@csn.ul.ie>,
Christoph Lameter <cl@linux.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Rik van Riel <riel@redhat.com>, Hugh Dickins <hughd@google.com>,
Michal Hocko <mhocko@suse.cz>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Zhu Yanhai <zhu.yanhai@gmail.com>,
linux-mm@kvack.org
Subject: Re: [PATCH V7 4/9] Add memcg kswapd thread pool
Date: Sun, 24 Apr 2011 19:08:17 -0700 [thread overview]
Message-ID: <BANLkTimGBHW7P=M6VJdrCs2FL_DoLY86fA@mail.gmail.com> (raw)
In-Reply-To: <20110425082642.034a5f64.kamezawa.hiroyu@jp.fujitsu.com>
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On Sun, Apr 24, 2011 at 4:26 PM, KAMEZAWA Hiroyuki <
kamezawa.hiroyu@jp.fujitsu.com> wrote:
> On Fri, 22 Apr 2011 00:59:26 -0700
> Ying Han <yinghan@google.com> wrote:
>
> > On Fri, Apr 22, 2011 at 12:46 AM, KAMEZAWA Hiroyuki <
> > kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> > > From this, I feel I need to use unbound workqueue. BTW, with patches
> for
> > > current thread pool model, I think starvation problem by dirty pages
> > > cannot be seen.
> > > Anyway, I'll give a try.
> > >
> >
> > Then do you suggest me to wait for your patch for my next post?
> >
>
> I used most of weekend for background reclaim on workqueue and I changed
> many
> things based on your patch (but dropped most of kswapd
> descriptor...patches.)
>
> Thank you for the heads up. Although I am still having concerns on the
workqueue approach, but
thank you for your time to give a try.
One of my concerns is still the debug-ability and I am not being convinced
the resource consumption is a killing issue for the per-memcg
kswapd thread. Anyway, looking to see your change.
--Ying
> I'll post it today after some tests on machines in my office. It worked
> well
> on my laptop.
>
> Thanks,
> -Kame
>
>
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next prev parent reply other threads:[~2011-04-25 2:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-22 4:24 [RFC PATCH V7 0/9] memcg: per cgroup background reclaim Ying Han
2011-04-22 4:24 ` [PATCH V7 1/9] Add kswapd descriptor Ying Han
2011-04-22 4:31 ` KAMEZAWA Hiroyuki
2011-04-22 4:47 ` KOSAKI Motohiro
2011-04-22 5:55 ` Ying Han
2011-04-22 4:24 ` [PATCH V7 2/9] Add per memcg reclaim watermarks Ying Han
2011-04-22 4:24 ` [PATCH V7 3/9] New APIs to adjust per-memcg wmarks Ying Han
2011-04-22 4:32 ` KAMEZAWA Hiroyuki
2011-04-22 4:24 ` [PATCH V7 4/9] Add memcg kswapd thread pool Ying Han
2011-04-22 4:36 ` KAMEZAWA Hiroyuki
2011-04-22 4:49 ` Ying Han
2011-04-22 5:00 ` KAMEZAWA Hiroyuki
2011-04-22 5:53 ` Ying Han
2011-04-22 5:59 ` KAMEZAWA Hiroyuki
2011-04-22 6:10 ` Ying Han
2011-04-22 7:46 ` KAMEZAWA Hiroyuki
2011-04-22 7:59 ` Ying Han
2011-04-22 8:02 ` KAMEZAWA Hiroyuki
2011-04-24 23:26 ` KAMEZAWA Hiroyuki
2011-04-25 2:08 ` Ying Han [this message]
2011-04-22 6:02 ` Zhu Yanhai
2011-04-22 6:14 ` Ying Han
2011-04-22 5:39 ` KOSAKI Motohiro
2011-04-22 5:56 ` KAMEZAWA Hiroyuki
2011-04-22 4:24 ` [PATCH V7 5/9] Infrastructure to support per-memcg reclaim Ying Han
2011-04-22 4:38 ` KAMEZAWA Hiroyuki
2011-04-22 5:11 ` KOSAKI Motohiro
2011-04-22 5:59 ` Ying Han
2011-04-22 5:27 ` KOSAKI Motohiro
2011-04-22 6:00 ` Ying Han
2011-04-22 4:24 ` [PATCH V7 6/9] Implement the select_victim_node within memcg Ying Han
2011-04-22 4:39 ` KAMEZAWA Hiroyuki
2011-04-22 4:24 ` [PATCH V7 7/9] Per-memcg background reclaim Ying Han
2011-04-22 4:40 ` KAMEZAWA Hiroyuki
2011-04-22 6:00 ` KOSAKI Motohiro
2011-04-22 7:54 ` Ying Han
2011-04-22 8:44 ` KOSAKI Motohiro
2011-04-22 18:37 ` Ying Han
2011-04-25 2:21 ` [PATCH] vmscan,memcg: memcg aware swap token KOSAKI Motohiro
2011-04-25 9:47 ` KAMEZAWA Hiroyuki
2011-04-25 17:13 ` Ying Han
2011-04-26 2:08 ` KOSAKI Motohiro
2011-04-22 4:24 ` [PATCH V7 8/9] Add per-memcg zone "unreclaimable" Ying Han
2011-04-22 4:43 ` KAMEZAWA Hiroyuki
2011-04-22 6:13 ` KOSAKI Motohiro
2011-04-22 6:17 ` Ying Han
2011-04-22 4:24 ` [PATCH V7 9/9] Enable per-memcg background reclaim Ying Han
2011-04-22 4:44 ` KAMEZAWA Hiroyuki
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