From: "Christian MICHON" <christian.michon@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] QCow v2
Date: Tue, 4 Jul 2006 14:13:05 +0200 [thread overview]
Message-ID: <46d6db660607040513t230e37c6h40cd3de3f91a76bd@mail.gmail.com> (raw)
In-Reply-To: <44AA5057.4090306@bellard.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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> Qemu-devel@nongnu.org
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>
--
Christian
next prev parent reply other threads:[~2006-07-04 12:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-04 2:45 [Qemu-devel] QCow v2 Nathaniel McCallum
2006-07-04 8:12 ` Johannes Schindelin
2006-07-04 8:49 ` Raphaël Rigo
2006-07-04 9:23 ` Fabrice Bellard
2006-07-04 10:44 ` Christian MICHON
2006-07-04 10:57 ` Fabrice Bellard
2006-07-04 11:28 ` Julian Seward
2006-07-04 11:01 ` Johannes Schindelin
2006-07-04 11:13 ` Elefterios Stamatogiannakis
2006-07-04 13:51 ` Christian MICHON
2006-07-04 15:04 ` Natalia Portillo
2006-07-11 11:30 ` Christian MICHON
2006-07-11 17:43 ` André Braga
2006-07-04 11:14 ` Christian MICHON
2006-07-04 11:26 ` Fabrice Bellard
2006-07-04 12:13 ` Christian MICHON [this message]
2006-07-04 12:22 ` Fabrice Bellard
2006-07-04 13:03 ` Christian MICHON
2006-07-04 13:16 ` Christian MICHON
2006-07-04 13:28 ` Johannes Schindelin
2006-07-04 13:01 ` Nathaniel McCallum
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