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Kernel Space: Avoiding the OOM Killer with mem_notify

Feb 07, 2008, 10:45 (5 Talkback[s])
(Other stories by Jake Edge)

"Having applications that use up all the available memory can be a fairly painful experience. For Linux systems, it generally means a visit from the out-of-memory (OOM) killer, which will try to find processes to kill. As one would guess, coming up with rules governing which process to kill is challenging—someone, somewhere, will always be unhappy with a choice the OOM killer makes. Avoiding it altogether is the goal of the mem_notify patch.

"When memory gets tight, it is quite possible that applications have memory allocated--often caches for better performance--that they could free..."

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