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Date: Tue, 27 Oct 2009 15:56:59 +0900 From: Minchan Kim <minchan.kim@...il.com> To: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> Cc: Minchan Kim <minchan.kim@...il.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, vedran.furac@...il.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: Re: Memory overcommit On Tue, 27 Oct 2009 15:46:36 +0900 (JST) KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote: > > > > %check_badness.pl | sort -n | tail > > > > -- > > > > 89924 3938 mixer_applet2 > > > > 90210 3942 tomboy > > > > 94753 3936 clock-applet > > > > 101994 3919 pulseaudio > > > > 113525 4028 gnome-terminal > > > > 127340 1 init > > > > 128177 3871 nautilus > > > > 151003 11515 bash > > > > 256944 11653 mmap > > > > 425561 3829 gnome-session > > > > -- > > > > Sigh, gnome-session has twice value of mmap(1G). > > > > Of course, gnome-session only uses 6M bytes of anon. > > > > I wonder this is because gnome-session has many children..but need to > > > > dig more. Does anyone has idea ? > > > > (CCed kosaki) > > > > > > Following output address the issue. > > > The fact is, modern desktop application linked pretty many library. it > > > makes bloat VSS size and increase > > > OOM score. > > > > > > Ideally, We shouldn't account evictable file-backed mappings for oom_score. > > > > > Hmm. > > I wonder why we consider VM size for OOM kiling. > > How about RSS size? > > Because, swap out-ed bad body (e.g. fork bomb process) still should > be killed by oom. > RSS + swap-entries is acceptable to me. It's reasonable to me. As I mentioned by reply of kame, in Vedran case, he didn't use swap. I think only considering vm is the problem. -- 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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