linux-kernel - Re: [00/17] Large Blocksize Support V3

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Message-ID: <20070428081658.GA19281@infradead.org>
Date:	Sat, 28 Apr 2007 09:16:58 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Christoph Lameter <clameter@....com>,
	Paul Mackerras <paulus@...ba.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Chinner <dgc@....com>, linux-kernel@...r.kernel.org,
	Mel Gorman <mel@...net.ie>,
	William Lee Irwin III <wli@...omorphy.com>,
	Jens Axboe <jens.axboe@...cle.com>,
	Badari Pulavarty <pbadari@...il.com>,
	Maxim Levitsky <maximlevitsky@...il.com>
Subject: Re: [00/17] Large Blocksize Support V3

On Sat, Apr 28, 2007 at 12:27:45PM +1000, Nick Piggin wrote:
> And that wasn't due to the 128 sg limit?

No, that was due to aacraid really liking sg lists as small as possible
where every entry covers areas as big as possible.  The driver really
liked physical merging once wli changed the page allocator to return
pages in the right order. 

> I guess 10% isn't a small amount. Though it would be nice to have
> before/after numbers for Linux.

I'll try to find the old thread.

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