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Message-Id: <1190169932.24970.384.camel@edge.yarra.acx>
Date: Wed, 19 Sep 2007 12:45:32 +1000
From: Nathan Scott <nscott@...nex.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrea Arcangeli <andrea@...e.de>,
Nick Piggin <nickpiggin@...oo.com.au>,
Christoph Lameter <clameter@....com>,
Mel Gorman <mel@...net.ie>, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
William Lee Irwin III <wli@...omorphy.com>,
David Chinner <dgc@....com>,
Jens Axboe <jens.axboe@...cle.com>,
Badari Pulavarty <pbadari@...il.com>,
Maxim Levitsky <maximlevitsky@...il.com>,
Fengguang Wu <fengguang.wu@...il.com>,
swin wang <wangswin@...il.com>, totty.lu@...il.com,
hugh@...itas.com, joern@...ybastard.org
Subject: Re: [00/41] Large Blocksize Support V7 (adds memmap support)
On Tue, 2007-09-18 at 18:06 -0700, Linus Torvalds wrote:
> There is *no* valid reason for 16kB blocksizes unless you have legacy
> issues.
That's not correct.
> The performance issues have nothing to do with the block-size, and
We must be thinking of different performance issues.
> should be solvable by just making sure that your stupid "state of the
> art"
> crap SCSI controller gets contiguous physical memory, which is best
> done
> in the read-ahead code.
SCSI controllers have nothing to do with improving ondisk layout, which
is the performance issue I've been referring to.
cheers.
--
Nathan
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