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Date: Sat, 28 Apr 2007 12:50:26 +1000
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: William Lee Irwin III <wli@holomorphy.com>
CC: Christoph Hellwig <hch@infradead.org>,
       Christoph Lameter <clameter@sgi.com>, Paul Mackerras <paulus@samba.org>,
       Andrew Morton <akpm@linux-foundation.org>, David Chinner <dgc@sgi.com>,
       linux-kernel@vger.kernel.org, Mel Gorman <mel@skynet.ie>,
       Jens Axboe <jens.axboe@oracle.com>,
       Badari Pulavarty <pbadari@gmail.com>,
       Maxim Levitsky <maximlevitsky@gmail.com>
Subject: Re: [00/17] Large Blocksize Support V3
References: <20070427042046.GI65285596@melbourne.sgi.com> <20070426221528.655d79cb.akpm@linux-foundation.org> <Pine.LNX.4.64.0704262239580.4758@schroedinger.engr.sgi.com> <20070426235542.bad7035a.akpm@linux-foundation.org> <17969.55533.59287.509889@cargo.ozlabs.ibm.com> <4631E173.7000204@yahoo.com.au> <Pine.LNX.4.64.0704270507110.21003@schroedinger.engr.sgi.com> <4631EBC8.4060003@yahoo.com.au> <20070427133947.GB4152@infradead.org> <4632B121.3030005@yahoo.com.au> <20070428023901.GT19966@holomorphy.com>
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William Lee Irwin III wrote:
> On Sat, Apr 28, 2007 at 12:27:45PM +1000, Nick Piggin wrote:
> 
>>I guess 10% isn't a small amount. Though it would be nice to have
>>before/after numbers for Linux. And, like Andrew was saying, we could
>>just _attempt_ to put contiguous pages in pagecache rather than
>>_require_ it. Which is still robust under fragmentation, and benefits
>>everyone, not just files with a large pagecache size.
> 
> 
> What sort of strategy do you intend to use to speculatively populate
> the pagecache with contiguous pages?

Andrew outlined it.

-- 
SUSE Labs, Novell Inc.