From: "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>
To: minchan Kim <barrioskmc@gmail.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
Rik van Riel <riel@redhat.com>,
Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] the proposal of improve page reclaim by throttle
Date: Thu, 21 Feb 2008 19:55:39 +0900 [thread overview]
Message-ID: <2f11576a0802210255k1e3acad7n87814e916fd24509@mail.gmail.com> (raw)
In-Reply-To: <44c63dc40802210138s100e921ekde01b30bae13beb1@mail.gmail.com>
Hi Kim-san,
Thank you very much.
btw, what different between <test 1> and <test 2>?
> It was a very interesting result.
> In embedded system, your patch improve performance a little in case
> without noswap(normal case in embedded system).
> But, more important thing is OOM occured when I made 240 process
> without swap device and vanilla kernel.
> Then, I applied your patch, it worked very well without OOM.
Wow, it is very interesting result!
I am very happy.
> I think that's why zone's page_scanned was six times greater than
> number of lru pages.
> At result, OOM happened.
please repost question with change subject.
i don't know reason of vanilla kernel behavior, sorry.
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next prev parent reply other threads:[~2008-02-21 10:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 5:44 [RFC][PATCH] the proposal of improve page reclaim by throttle KOSAKI Motohiro
2008-02-19 6:34 ` Nick Piggin
2008-02-19 7:09 ` KOSAKI Motohiro
2008-02-19 13:31 ` Rik van Riel
2008-02-20 8:56 ` minchan Kim
2008-02-20 9:24 ` KOSAKI Motohiro
2008-02-20 9:49 ` minchan Kim
2008-02-20 10:09 ` KOSAKI Motohiro
2008-02-21 9:38 ` minchan Kim
2008-02-21 10:55 ` KOSAKI Motohiro [this message]
2008-02-21 12:29 ` minchan Kim
2008-02-21 12:41 ` KOSAKI Motohiro
2008-02-21 9:48 ` Balbir Singh
2008-02-21 11:01 ` KOSAKI Motohiro
2008-02-21 11:02 ` Balbir Singh
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