Re: [PATCH 2/5] oom: kill younger process first

From: Minchan Kim
Date: Sun May 22 2011 - 22:37:13 EST


2011/5/20 KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>:
> 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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