linux-kernel - Re: [GIT PULL] Update LZO compression

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Message-ID: <20120816162051.GK11413@one.firstfloor.org>
Date:	Thu, 16 Aug 2012 18:20:52 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	"Markus F.X.J. Oberhumer" <markus@...rhumer.com>,
	Johannes Stezenbach <js@...21.net>,
	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	chris.mason@...ionio.com, linux-btrfs@...r.kernel.org,
	Nitin Gupta <ngupta@...are.org>,
	Richard Purdie <rpurdie@...nedhand.com>,
	richard -rw- weinberger <richard.weinberger@...il.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [GIT PULL] Update LZO compression

> If you think a little bit, I bet you could come up with a solution that 
> operates at cacheline-aligned granularity, something that would be _even 
> faster_ than simply fixing the code to do aligned accesses.

Cache aligned compression is unlikely to compress anything at all.
Compression algorithms are usually by definition unaligned.

-Andi
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