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Re: [Qemu-devel] QCow v2


From: Fabrice Bellard
Subject: Re: [Qemu-devel] QCow v2
Date: Tue, 04 Jul 2006 13:26:15 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040913

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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