On 2011年12月11日 14:38, Peter Teoh wrote:
On Mon, Dec 5, 2011 at 11:24 AM, bill4carson <bill4carson@gmail.com <mailto:bill4carson@gmail.com>> wrote:
Hi, all
Since there is a practical needs for user application with the ability to sense kernel memory use pressure, http://elinux.org/Memory_Management gives some approach on this as below:
OOM notification in cgroups mem_notify patches Google cgroup OOM handler Nokia OOM enhancements
OOM by itself is for non-critical server, or hand-held devices where physical memory is severely constrained. For server running database, or any high end server, it is disastrous to have it turned on. Judge for yourself the criticality of your applications and turn it on/off if needs to:
http://serverfault.com/questions/141988/avoid-linux-out-of-memory-applicatio... http://www.cyberciti.biz/tips/linux-oom-killer-out-of-memory-and-nfs-server-...
http://lwn.net/Articles/49531/ http://lwn.net/Articles/317814/ http://lwn.net/Articles/391222/
For the latest development, read this:
https://www.redhat.com/archives/linux-audit/2011-May/msg00000.html
and the Documentation/feature-removal-schedule.txt and Documentation/cgroups/memory.txt has some development on OOM as well
AFAIK, it seems none of these have been merged into mainline or updated continuously, I'm not so familiar with mm system, so may I ask which known approach is best to work with mainline kernel now?
Very informative, thanks :)
-- I am a slow learner but I will keep trying to fight for my dreams!
--bill
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-- Regards, Peter Teoh
-- I am a slow learner but I will keep trying to fight for my dreams! --bill