From: Christoph Lameter <cl@linux-foundation.org>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Chris Snook <csnook@redhat.com>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Hugh Dickens <hugh@veritas.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Avi Kivity <avi@qumranet.com>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
"Martin J. Bligh" <mbligh@google.com>
Subject: Re: Populating multiple ptes at fault time
Date: Thu, 18 Sep 2008 14:39:24 -0500 [thread overview]
Message-ID: <48D2AE6C.7060507@linux-foundation.org> (raw)
In-Reply-To: <48D2A392.6010308@goop.org>
Jeremy Fitzhardinge wrote:
> Thanks, that was exactly what I was hoping to see. I didn't see any
> definitive statements against the patch set, other than a concern that
> it could make things worse. Was the upshot that no consensus was
> reached about how to detect when its beneficial to preallocate anonymous
> pages?
There were multiple discussions on the subject. The consensus was that it was
difficult to generalize this and it would only work on special loads. Plus it
would add some overhead to the general case.
> Christoph (and others): do you think vm changes in the last 4 years
> would have changed the outcome of these results?
Seems that the code today is similar. So it would still work.
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next prev parent reply other threads:[~2008-09-18 19:39 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-17 17:47 Jeremy Fitzhardinge
2008-09-17 18:28 ` Rik van Riel
2008-09-17 21:47 ` Jeremy Fitzhardinge
2008-09-17 20:02 ` Chris Snook
2008-09-17 21:45 ` Jeremy Fitzhardinge
2008-09-18 18:16 ` Christoph Lameter
2008-09-18 18:53 ` Jeremy Fitzhardinge
2008-09-18 19:39 ` Christoph Lameter [this message]
2008-09-18 22:21 ` KOSAKI Motohiro
2008-09-18 20:52 ` Martin Bligh
2008-09-18 20:53 ` Chris Snook
2008-09-18 21:11 ` Martin Bligh
2008-09-18 21:13 ` Christoph Lameter
2008-09-18 21:21 ` Martin Bligh
2008-09-18 21:32 ` Christoph Lameter
2008-09-18 21:49 ` MinChan Kim
2008-09-18 21:58 ` Christoph Lameter
2008-09-18 22:08 ` Martin Bligh
2008-09-18 22:11 ` Christoph Lameter
2008-09-18 22:18 ` Martin Bligh
2008-09-18 22:22 ` Jeremy Fitzhardinge
2008-09-18 22:23 ` Chris Snook
2008-09-18 23:16 ` MinChan Kim
2008-09-17 22:02 ` Avi Kivity
2008-09-17 22:30 ` Jeremy Fitzhardinge
2008-09-17 22:47 ` Avi Kivity
2008-09-17 23:02 ` Jeremy Fitzhardinge
2008-09-18 20:26 ` Avi Kivity
2008-09-18 22:18 ` Jeremy Fitzhardinge
2008-09-18 23:38 ` Avi Kivity
2008-09-19 0:00 ` Jeremy Fitzhardinge
2008-09-19 0:20 ` Avi Kivity
2008-09-19 0:42 ` Jeremy Fitzhardinge
2008-09-24 12:31 ` Avi Kivity
2008-09-25 18:32 ` Jeremy Fitzhardinge
2008-09-26 10:26 ` Martin Schwidefsky
2008-09-19 17:45 ` Benjamin Herrenschmidt
2008-09-17 23:50 ` MinChan Kim
2008-09-18 6:58 ` KOSAKI Motohiro
2008-09-18 7:26 ` KAMEZAWA Hiroyuki
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