lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 10 Jul 2007 13:04:05 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Mel Gorman <mel@...net.ie>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, npiggin@...e.de,
	kenchen@...gle.com, jschopp@...tin.ibm.com, apw@...dowen.org,
	kamezawa.hiroyu@...fujitsu.com, y-goto@...fujitsu.com,
	clameter@....com, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: -mm merge plans -- anti-fragmentation

On Tue, 2007-07-10 at 11:20 +0100, Mel Gorman wrote:

<snip>

> > lumpy-reclaim-v4.patch
> 
> This patch is really what lumpy reclaim is. I believe Peter has looked
> at this and was happy enough at the time although he is cc'd here again
> in case this has changed. This is mainly useful with either grouping
> pages by mobility or the ZONE_MOVABLE stuff. However, at the time the
> patch was proposed, there was a feeling that it might help jumbo frame
> allocation on e1000's and maybe if fsblock optimistically uses
> contiguous pages it would have an application. I would like to see it go
> through to see does it help e1000 at least.

I'm not seeing how this will help e1000 (and other jumbo drivers). They
typically allocate using GFP_ATOMIC, so in order to satisfy those you'd
need to either have a higher order watermark or do atomic defrag of the
free space.


-
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/

Powered by blists - more mailing lists