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	<4DD62007.6020600@jp.fujitsu.com>
Date: Mon, 23 May 2011 11:37:00 +0900
Message-ID: <BANLkTineOmdV9wjK-5CmR9YTbMXyR8L7og@mail.gmail.com>
Subject: Re: [PATCH 2/5] oom: kill younger process first
From: Minchan Kim <minchan.kim@gmail.com>
To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        akpm@linux-foundation.org, caiqian@redhat.com, rientjes@google.com,
        hughd@google.com, kamezawa.hiroyu@jp.fujitsu.com, oleg@redhat.com
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2011/5/20 KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>:
> This patch introduces do_each_thread_reverse() and select_bad_process()
> uses it. The benefits are two, 1) oom-killer can kill younger process
> than older if they have a same oom score. Usually younger process is
> less important. 2) younger task often have PF_EXITING because shell
> script makes a lot of short lived processes. Reverse order search can
> detect it faster.
>
> Reported-by: CAI Qian <caiqian@redhat.com>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>


-- 
Kind regards,
Minchan Kim
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