From: Elefterios Stamatogiannakis <estama@dblab.ece.ntua.gr>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] QCow v2
Date: Tue, 04 Jul 2006 14:13:56 +0300 [thread overview]
Message-ID: <44AA4D74.9070005@dblab.ece.ntua.gr> (raw)
In-Reply-To: <Pine.LNX.4.63.0607041300320.29667@wbgn013.biozentrum.uni-wuerzburg.de>
I agree
Lzma and zlib are pretty much equivalent, so there is pretty much
nothing to be gained except slightly more compression.
On the other hand with lzo (1) there would be quite a considerable speed
improvement at the cost of compression.
It could also mean that reading on the qcow format could some times be
faster (with compressible data) than reading directly from the hard disk.
lefteris
(1) http://www.oberhumer.com/opensource/lzo/
Johannes Schindelin wrote:
> Hi,
>
> On Tue, 4 Jul 2006, Christian MICHON wrote:
>
>> how about also adding lzma compression for qcow ?
>
> Why lzma? We already have a dependency on zlib, why not just take that?
>
> Ciao,
> Dscho
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
next prev parent reply other threads:[~2006-07-04 11:13 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 [this message]
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
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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