From: Marcelo Tosatti <marcelo@kvack.org>
To: linux-kernel@vger.kernel.org
Cc: riel@redhat.com, drepper@redhat.com
Subject: OOM notifications
Date: Thu, 18 Oct 2007 16:25:04 -0400 [thread overview]
Message-ID: <20071018202504.GA2854@dmt> (raw)
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.
next reply other threads:[~2007-10-18 20:23 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-18 20:25 Marcelo Tosatti [this message]
2007-10-18 20:38 ` OOM notifications Rene Herman
2007-10-18 20:52 ` Rik van Riel
2007-10-18 21:06 ` Rene Herman
2007-10-18 21:18 ` Rik van Riel
2007-10-18 22:01 ` Rene Herman
2007-10-18 22:10 ` Ulrich Drepper
2007-10-19 5:15 ` Chris Friesen
2007-10-19 10:17 ` Pavel Machek
2007-10-19 15:18 ` Samuel Tardieu
2007-10-19 16:58 ` Chris Friesen
2007-10-18 22:16 ` Rene Herman
-- strict thread matches above, loose matches on Subject: below --
2007-10-18 20:15 Marcelo Tosatti
2007-10-26 21:02 ` Andrew Morton
2007-10-26 21:05 ` Martin Bligh
2007-10-26 21:11 ` Andrew Morton
2007-10-26 21:35 ` Rik van Riel
2007-10-26 21:59 ` Martin Bligh
2007-10-26 22:30 ` Rik van Riel
2007-10-28 21:16 ` Balbir Singh
2007-10-30 14:57 ` Jan Kara
2007-10-30 15:23 ` Rik van Riel
2007-10-30 15:55 ` Jan Kara
2007-10-30 17:31 ` Rik van Riel
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