From: Christoph Lameter <clameter@sgi.com>
To: Nick Piggin <npiggin@suse.de>
Cc: Mel Gorman <mel@skynet.ie>,
Andrew Morton <akpm@linux-foundation.org>,
kenchen@google.com, jschopp@austin.ibm.com, apw@shadowen.org,
kamezawa.hiroyu@jp.fujitsu.com, a.p.zijlstra@chello.nl,
y-goto@jp.fujitsu.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: -mm merge plans -- anti-fragmentation
Date: Tue, 10 Jul 2007 11:46:00 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0707101142340.11906@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070710130356.GG8779@wotan.suse.de>
On Tue, 10 Jul 2007, Nick Piggin wrote:
> I realise in your pragmatic approach, you are encouraging users to
> put fallbacks in place in case a higher order page cannot be allocated,
> but I don't think either higher order pagecache or higher order slubs
> have such fallbacks (fsblock or a combination of fsblock and higher
> order pagecache could have, but...).
We have run mm kernels for month now without the need of a fallback. I
purpose of ZONE_MOVABLE was to guarantee that higher order pages could be
reclaimed and thus make the scheme reliable?
The experience so far shows that the approach works reliably. If there are
issues then they need to be fixed. Putting in workarounds in other places
such as in fsblock may just be hiding problems if there are any.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-07-10 18:46 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-10 10:20 Mel Gorman
2007-07-10 11:01 ` KAMEZAWA Hiroyuki
2007-07-10 11:12 ` Mel Gorman
2007-07-10 11:38 ` KAMEZAWA Hiroyuki
2007-07-10 15:50 ` Mel Gorman
2007-07-10 11:04 ` Peter Zijlstra
2007-07-10 13:24 ` Mel Gorman
2007-07-10 13:03 ` Nick Piggin
2007-07-10 13:55 ` Mel Gorman
2007-07-10 18:47 ` Christoph Lameter
2007-07-10 18:46 ` Christoph Lameter [this message]
2007-07-11 9:48 ` Mel Gorman
2007-07-10 14:29 ` Dave McCracken
2007-07-10 15:23 ` Nick Piggin
2007-07-10 17:11 ` Dave McCracken
2007-07-11 2:59 ` Nick Piggin
2007-07-11 10:01 ` Mel Gorman
2007-07-11 13:03 ` Andy Whitcroft
2007-07-11 8:55 ` Christoph Hellwig
2007-07-10 18:50 ` Christoph Lameter
2007-07-11 10:05 ` Mel Gorman
2007-07-12 19:29 ` Andrew Morton
2007-07-12 21:32 ` Mel Gorman
2007-07-13 15:56 ` [PATCH] Add a movablecore= parameter for sizing ZONE_MOVABLE Mel Gorman
2007-07-14 8:28 ` Nick Piggin
2007-07-14 13:02 ` Mel Gorman
2007-07-15 13:47 ` KAMEZAWA Hiroyuki
2007-07-13 10:20 ` -mm merge plans -- anti-fragmentation Andy Whitcroft
2007-07-13 16:58 ` Christoph Lameter
2007-07-13 17:02 ` Nish Aravamudan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Pine.LNX.4.64.0707101142340.11906@schroedinger.engr.sgi.com \
--to=clameter@sgi.com \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=apw@shadowen.org \
--cc=jschopp@austin.ibm.com \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=kenchen@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mel@skynet.ie \
--cc=npiggin@suse.de \
--cc=y-goto@jp.fujitsu.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox