From: Dave Chinner <david@fromorbit.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
Chris Mason <clm@fb.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"mgorman@suse.de" <mgorman@suse.de>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
"lsf-pc@lists.linux-foundation.org"
<lsf-pc@lists.linux-foundation.org>,
Ric Wheeler <rwheeler@redhat.com>
Subject: Re: [Lsf-pc] [LSF/MM TOPIC] really large storage sectors - going beyond 4096 bytes
Date: Thu, 23 Jan 2014 19:35:58 +1100 [thread overview]
Message-ID: <20140123083558.GQ13997@dastard> (raw)
In-Reply-To: <20140122115002.bb5d01dee836b567a7aad157@linux-foundation.org>
On Wed, Jan 22, 2014 at 11:50:02AM -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.
Reality check: 64k block sizes on 64k page Linux machines has been
used in production on XFS for at least 10 years. It's exactly the
same case as 4k block size on 4k page size - one page, one buffer
head, one filesystem block.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2014-01-23 8:35 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
2014-01-23 2:46 ` David Lang
2014-01-23 5:21 ` Theodore Ts'o
2014-01-23 8:35 ` Dave Chinner [this message]
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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