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Date: Tue, 24 May 2011 18:20:51 +0900 From: Minchan Kim <minchan.kim@...il.com> To: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, caiqian@...hat.com, rientjes@...gle.com, hughd@...gle.com, kamezawa.hiroyu@...fujitsu.com, oleg@...hat.com Subject: Re: [PATCH 4/5] oom: don't kill random process On Tue, May 24, 2011 at 6:09 PM, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote: >>>> Hmm, If I understand your code correctly, unprivileged process can get >>>> a score 1 by 3% bonus. >>> >>> 3% bonus is for privileged process. :) >> >> OMG. Typo. >> Anyway, my point is following as. >> If chose_point is 1, it means root bonus is rather big. Right? >> If is is, your patch does second loop with completely ignore of bonus >> for root privileged process. >> My point is that let's not ignore bonus completely. Instead of it, >> let's recalculate 1.5% for example. > > 1) unpriviledged process can't get score 1 (because at least a process need one > anon, one file and two or more ptes). > 2) then, score=1 mean all processes in the system are privileged. thus decay won't help. > > IOW, never happen privileged and unprivileged score in this case. I am blind. Thanks for open my eyes, KOSAKI. -- Kind regards, Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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