From: Chris Mason <clm@fb.com>
To: "akpm@linux-foundation.org" <akpm@linux-foundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"lsf-pc@lists.linux-foundation.org"
<lsf-pc@lists.linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"rwheeler@redhat.com" <rwheeler@redhat.com>,
"James.Bottomley@hansenpartnership.com"
<James.Bottomley@hansenpartnership.com>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"mgorman@suse.de" <mgorman@suse.de>
Subject: Re: [Lsf-pc] [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes
Date: Wed, 22 Jan 2014 20:13:20 +0000 [thread overview]
Message-ID: <1390421691.1198.43.camel@ret.masoncoding.com> (raw)
In-Reply-To: <20140122115002.bb5d01dee836b567a7aad157@linux-foundation.org>
On Wed, 2014-01-22 at 11:50 -0800, Andrew Morton wrote:
> On Wed, 22 Jan 2014 11:30:19 -0800 James Bottomley <James.Bottomley@hansenpartnership.com> wrote:
>
> > But this, I think, is the fundamental point for debate. If we can pull
> > alignment and other tricks to solve 99% of the problem is there a need
> > for radical VM surgery? Is there anything coming down the pipe in the
> > future that may move the devices ahead of the tricks?
>
> I expect it would be relatively simple to get large blocksizes working
> on powerpc with 64k PAGE_SIZE. So before diving in and doing huge
> amounts of work, perhaps someone can do a proof-of-concept on powerpc
> (or ia64) with 64k blocksize.
Maybe 5 drives in raid5 on MD, with 4K coming from each drive. Well
aligned 16K IO will work, everything else will about the same as a rmw
from a single drive.
-chris
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next prev parent reply other threads:[~2014-01-22 20:13 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 9:30 LSF/MM 2014 Call For Proposals Mel Gorman
2014-01-06 22:20 ` [LSF/MM TOPIC] [ATTEND] persistent memory progress, management of storage & file systems Ric Wheeler
2014-01-06 22:32 ` faibish, sorin
2014-01-07 19:44 ` Joel Becker
2014-01-21 7:00 ` LSF/MM 2014 Call For Proposals Michel Lespinasse
2014-01-22 3:04 ` [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes Ric Wheeler
2014-01-22 5:20 ` Joel Becker
2014-01-22 7:14 ` Hannes Reinecke
2014-01-22 9:34 ` [Lsf-pc] " Mel Gorman
2014-01-22 14:10 ` Ric Wheeler
2014-01-22 14:34 ` Mel Gorman
2014-01-22 14:58 ` Ric Wheeler
2014-01-22 15:19 ` Mel Gorman
2014-01-22 17:02 ` Chris Mason
2014-01-22 17:21 ` James Bottomley
2014-01-22 18:02 ` Chris Mason
2014-01-22 18:13 ` James Bottomley
2014-01-22 18:17 ` Ric Wheeler
2014-01-22 18:35 ` James Bottomley
2014-01-22 18:39 ` Ric Wheeler
2014-01-22 19:30 ` James Bottomley
2014-01-22 19:50 ` Andrew Morton
2014-01-22 20:13 ` Chris Mason [this message]
2014-01-23 2:46 ` David Lang
2014-01-23 5:21 ` Theodore Ts'o
2014-01-23 8:35 ` Dave Chinner
2014-01-23 12:55 ` Theodore Ts'o
2014-01-23 19:49 ` Dave Chinner
2014-01-23 21:21 ` Joel Becker
2014-01-22 20:57 ` Martin K. Petersen
2014-01-22 18:37 ` Chris Mason
2014-01-22 18:40 ` Ric Wheeler
2014-01-22 18:47 ` James Bottomley
2014-01-23 21:27 ` Joel Becker
2014-01-23 21:34 ` Chris Mason
2014-01-23 8:27 ` Dave Chinner
2014-01-23 15:47 ` James Bottomley
2014-01-23 16:44 ` Mel Gorman
2014-01-23 19:55 ` James Bottomley
2014-01-24 10:57 ` Mel Gorman
2014-01-30 4:52 ` Matthew Wilcox
2014-01-30 6:01 ` Dave Chinner
2014-01-30 10:50 ` Mel Gorman
2014-01-23 20:34 ` Dave Chinner
2014-01-23 20:54 ` Christoph Lameter
2014-01-23 8:24 ` Dave Chinner
2014-01-23 20:48 ` Christoph Lameter
2014-01-22 20:47 ` Martin K. Petersen
2014-01-23 8:21 ` Dave Chinner
2014-01-22 15:14 ` Chris Mason
2014-01-22 16:03 ` James Bottomley
2014-01-22 16:45 ` Ric Wheeler
2014-01-22 17:00 ` James Bottomley
2014-01-22 21:05 ` Jan Kara
2014-01-23 20:47 ` Christoph Lameter
2014-01-24 11:09 ` Mel Gorman
2014-01-24 15:44 ` Christoph Lameter
2014-01-22 15:54 ` James Bottomley
2014-03-14 9:02 ` Update on LSF/MM [was Re: LSF/MM 2014 Call For Proposals] James Bottomley
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