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Date: Thu, 18 Oct 2007 16:25:04 -0400 From: Marcelo Tosatti <marcelo@...ck.org> To: linux-kernel@...r.kernel.org Cc: riel@...hat.com, drepper@...hat.com Subject: OOM notifications Hi, AIX contains the SIGDANGER signal to notify applications to free up some unused cached memory: http://www.ussg.iu.edu/hypermail/linux/kernel/0007.0/0901.html There have been a few discussions on implementing such an idea on Linux, but nothing concrete has been achieved. On the kernel side Rik suggested two notification points: "about to swap" (for desktop scenarios) and "about to OOM" (for embedded-like scenarios). With that assumption in mind it would be necessary to either have two special devices for notification, or somehow indicate both events through the same file descriptor. Comments are more than welcome. - 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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