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Date: Tue, 4 Jul 2006 14:13:05 +0200
From: "Christian MICHON" <christian.michon@gmail.com>
Subject: Re: [Qemu-devel] QCow v2
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To: qemu-devel@nongnu.org

how do I test it unless I implement it?
Is it enough to split the qcow into the clusters, compress each one of
them, then add the total files sizes ?

how to split into individual clusters a qcow image ?

On 7/4/06, Fabrice Bellard <fabrice@bellard.org> wrote:
> Christian MICHON wrote:
> > 1) size... win30.qcow is 7.5Mb (no compress) 3.5Mb (with zlib)
> >  it should go down between 2.2Mb and 2.5Mb with lzma
>
> Did you compare with 4 KB clusters ? If you compress the whole file it
> says nothing about the compression gain you will have with 4 KB blocks.
>
> Fabrice.
>
>
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-- 
Christian