Re: [PATCH 2/4] oom: kill younger process first

From: Minchan Kim
Date: Wed May 11 2011 - 19:33:53 EST


On Tue, May 10, 2011 at 5:15 PM, KOSAKI Motohiro
<kosaki.motohiro@xxxxxxxxxxxxxx> wrote:
> 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@xxxxxxxxxx>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx>

--
Kind regards,
Minchan Kim
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