From: Dave Hansen <haveblue@us.ibm.com>
To: Pavel Emelianov <xemul@openvz.org>
Cc: balbir@in.ibm.com, vatsa@in.ibm.com, dev@openvz.org,
sekharan@us.ibm.com, ckrm-tech@lists.sourceforge.net,
linux-kernel@vger.kernel.org, pj@sgi.com, matthltc@us.ibm.com,
dipankar@in.ibm.com, rohitseth@google.com, menage@google.com
Subject: Re: [ckrm-tech] RFC: Memory Controller
Date: Tue, 31 Oct 2006 09:04:08 -0800 [thread overview]
Message-ID: <1162314249.28876.120.camel@localhost.localdomain> (raw)
In-Reply-To: <45470DF4.70405@openvz.org>
On Tue, 2006-10-31 at 11:48 +0300, Pavel Emelianov wrote:
> If memory is considered to be unreclaimable then actions should be
> taken at mmap() time, not later! Rejecting mmap() is the only way to
> limit user in unreclaimable memory consumption.
I don't think this is necessarily true. Today, if a kernel exceeds its
allocation limits (runs out of memory) it gets killed. Doing the
limiting at mmap() time instead of fault time will keep a sparse memory
applications from even being able to run.
Now, failing an mmap() is a wee bit more graceful than a SIGBUS, but it
certainly introduces its own set of problems.
-- Dave
next prev parent reply other threads:[~2006-10-31 17:04 UTC|newest]
Thread overview: 151+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-30 10:33 [RFC] Resource Management - Infrastructure choices Srivatsa Vaddagiri
2006-10-30 10:34 ` RFC: Memory Controller Balbir Singh
2006-10-30 11:04 ` Paul Menage
2006-10-30 13:27 ` [ckrm-tech] " Balbir Singh
2006-10-30 18:14 ` Paul Menage
2006-10-31 17:07 ` Balbir Singh
2006-10-31 17:22 ` Paul Menage
2006-10-31 18:16 ` Badari Pulavarty
2006-11-01 7:05 ` Balbir Singh
2006-11-01 7:07 ` Paul Menage
2006-11-01 7:44 ` Balbir Singh
2006-11-01 12:23 ` Paul Jackson
2006-11-02 0:09 ` Paul Menage
2006-11-02 0:39 ` Paul Jackson
2006-10-30 15:58 ` Pavel Emelianov
2006-10-30 17:39 ` Balbir Singh
2006-10-30 18:07 ` Balbir Singh
2006-10-30 18:07 ` Balbir Singh
2006-10-31 8:57 ` Pavel Emelianov
2006-10-31 8:57 ` Pavel Emelianov
2006-10-31 9:19 ` Balbir Singh
2006-10-31 9:19 ` Balbir Singh
2006-10-31 9:25 ` Pavel Emelianov
2006-10-31 9:25 ` Pavel Emelianov
2006-10-31 10:10 ` Balbir Singh
2006-10-31 10:10 ` Balbir Singh
2006-10-31 10:19 ` Pavel Emelianov
2006-10-31 10:19 ` Pavel Emelianov
2006-10-31 9:42 ` Andrew Morton
2006-10-31 9:42 ` Andrew Morton
2006-10-31 10:36 ` Balbir Singh
2006-10-31 10:36 ` Balbir Singh
2006-10-31 8:48 ` Pavel Emelianov
2006-10-31 10:54 ` Balbir Singh
2006-10-31 10:54 ` Balbir Singh
2006-10-31 11:15 ` Pavel Emelianov
2006-10-31 11:15 ` Pavel Emelianov
2006-10-31 12:39 ` Balbir Singh
2006-10-31 12:39 ` Balbir Singh
2006-10-31 14:19 ` Pavel Emelianov
2006-10-31 14:19 ` Pavel Emelianov
2006-10-31 16:54 ` Paul Menage
2006-10-31 16:54 ` Paul Menage
2006-11-01 6:00 ` David Rientjes
2006-11-01 6:00 ` David Rientjes
2006-11-01 8:05 ` Pavel Emelianov
2006-11-01 8:05 ` Pavel Emelianov
2006-11-01 8:35 ` David Rientjes
2006-11-01 8:35 ` David Rientjes
2006-10-31 17:04 ` Dave Hansen [this message]
2006-11-01 7:57 ` Pavel Emelianov
2006-10-30 18:20 ` Paul Menage
2006-10-30 21:38 ` Paul Jackson
2006-10-30 10:43 ` [RFC] Resource Management - Infrastructure choices Paul Jackson
2006-10-30 14:19 ` [ckrm-tech] " Pavel Emelianov
2006-10-30 14:29 ` Paul Jackson
2006-10-30 17:09 ` Srivatsa Vaddagiri
2006-10-30 17:16 ` Dave McCracken
2006-10-30 18:07 ` Paul Menage
2006-10-30 20:41 ` Paul Jackson
2006-10-30 10:51 ` Paul Menage
2006-10-30 11:06 ` [ckrm-tech] " Paul Jackson
2006-10-30 12:07 ` Paul Menage
2006-10-30 12:28 ` Paul Jackson
2006-10-30 11:15 ` Paul Jackson
2006-10-30 12:04 ` Paul Menage
2006-10-30 12:27 ` Paul Jackson
2006-10-30 17:53 ` Paul Menage
2006-10-30 20:36 ` Paul Jackson
2006-10-30 20:47 ` Paul Menage
2006-10-30 20:56 ` Paul Jackson
2006-10-30 21:03 ` Paul Menage
2006-10-31 11:53 ` Srivatsa Vaddagiri
2006-10-31 13:31 ` Srivatsa Vaddagiri
2006-10-31 16:46 ` Paul Menage
2006-11-01 17:25 ` Srivatsa Vaddagiri
2006-11-01 23:37 ` Paul Menage
2006-11-06 12:49 ` Srivatsa Vaddagiri
2006-11-06 20:23 ` Paul Menage
2006-11-07 13:20 ` Srivatsa Vaddagiri
2006-11-07 18:41 ` Paul Jackson
2006-11-07 19:07 ` Paul Menage
2006-11-07 19:11 ` Paul Jackson
2006-11-07 19:24 ` Paul Menage
2006-11-07 19:58 ` Paul Jackson
2006-11-07 20:00 ` Paul Menage
2006-11-07 20:02 ` Paul Jackson
2006-11-08 2:47 ` Matt Helsley
2006-11-07 20:34 ` Paul Jackson
2006-11-07 20:41 ` Paul Menage
2006-11-07 21:50 ` Paul Jackson
2006-11-07 22:21 ` Paul Menage
2006-11-08 3:15 ` Paul Jackson
2006-11-08 4:15 ` Paul Menage
2006-11-08 4:16 ` Paul Jackson
2006-11-08 11:22 ` Paul Jackson
2006-11-08 5:12 ` Srivatsa Vaddagiri
2006-11-08 5:36 ` Paul Jackson
2006-11-09 5:39 ` Balbir Singh
2006-11-08 19:25 ` Chris Friesen
2006-11-09 3:54 ` Srivatsa Vaddagiri
2006-11-10 14:57 ` Srivatsa Vaddagiri
2006-11-01 4:39 ` David Rientjes
2006-11-01 9:50 ` Paul Jackson
2006-11-01 9:58 ` David Rientjes
2006-11-01 15:59 ` Srivatsa Vaddagiri
2006-11-01 16:31 ` Srivatsa Vaddagiri
2006-11-01 21:05 ` David Rientjes
2006-11-01 23:43 ` Paul Menage
2006-11-01 18:19 ` Srivatsa Vaddagiri
2006-11-01 17:33 ` Srivatsa Vaddagiri
2006-11-01 21:18 ` Chris Friesen
2006-11-01 23:01 ` [Devel] " Kir Kolyshkin
2006-11-02 0:31 ` Matt Helsley
2006-11-02 8:34 ` Kir Kolyshkin
2006-11-01 23:48 ` Paul Menage
2006-11-02 3:28 ` Chris Friesen
2006-11-02 7:40 ` Paul Menage
2006-10-30 14:08 ` Pavel Emelianov
2006-10-30 14:23 ` Paul Jackson
2006-10-30 14:38 ` Pavel Emelianov
2006-10-30 15:18 ` Paul Jackson
2006-10-30 15:26 ` Pavel Emelianov
2006-10-31 0:26 ` Matt Helsley
2006-10-31 8:34 ` Pavel Emelianov
2006-10-31 16:33 ` Chris Friesen
2006-10-30 18:01 ` Paul Menage
2006-10-31 8:31 ` Pavel Emelianov
2006-10-31 16:34 ` Paul Menage
2006-10-31 16:57 ` Srivatsa Vaddagiri
2006-11-01 7:58 ` Pavel Emelianov
2006-10-31 16:34 ` Srivatsa Vaddagiri
2006-11-01 8:01 ` Pavel Emelianov
2006-11-01 16:04 ` Matt Helsley
2006-11-01 17:51 ` Srivatsa Vaddagiri
2006-11-01 17:50 ` Srivatsa Vaddagiri
2006-11-02 8:42 ` Pavel Emelianov
2006-11-03 1:29 ` David Rientjes
2006-11-01 9:30 ` Pavel Emelianov
2006-11-01 9:53 ` David Rientjes
2006-11-01 22:23 ` Matt Helsley
2006-11-01 18:12 ` Srivatsa Vaddagiri
2006-11-01 22:19 ` Matt Helsley
2006-11-01 23:50 ` Paul Menage
2006-11-02 0:30 ` Matt Helsley
2006-11-02 5:33 ` Balbir Singh
2006-11-02 9:08 ` Pavel Emelianov
2006-11-02 11:26 ` Matt Helsley
2006-11-02 13:04 ` Pavel Emelianov
2006-11-03 1:29 ` David Rientjes
2006-11-02 8:52 ` Pavel Emelianov
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