From: "Коренберг Марк" <603878@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 603878] [NEW] [Feature request] qemu-img option about recompressing
Date: Sat, 10 Jul 2010 07:06:33 -0000 [thread overview]
Message-ID: <20100710070634.22855.99257.malonedeb@soybean.canonical.com> (raw)
In-Reply-To: 20100710070634.22855.99257.malonedeb@soybean.canonical.com
Public bug reported:
Suppose I have a fresh compressed qcow2 image. After some time the data
were recorded without compression. I decide to make "QEMU-IMG convert"
for that image to reduce its size.
I want a new option, which selects between the two algorithms overdriven images:
1. extract all / compress again when converting images (in the current implementation)
2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.
This option is only needed when converting compressed image to
compressed and the compression algorithm is the same.
** Affects: qemu
Importance: Undecided
Status: New
--
[Feature request] qemu-img option about recompressing
https://bugs.launchpad.net/bugs/603878
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
Status in QEMU: New
Bug description:
Suppose I have a fresh compressed qcow2 image. After some time the data were recorded without compression. I decide to make "QEMU-IMG convert" for that image to reduce its size.
I want a new option, which selects between the two algorithms overdriven images:
1. extract all / compress again when converting images (in the current implementation)
2. compress only uncompressed blocks and just copy the compressed blocks without re-compression.
This option is only needed when converting compressed image to compressed and the compression algorithm is the same.
next parent reply other threads:[~2010-07-10 7:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-10 7:06 Коренберг Марк [this message]
2010-07-10 7:19 ` [Qemu-devel] [Bug 603878] Re: [Feature request] qemu-img option about recompressing Коренберг Марк
2016-11-09 20:25 ` Thomas Huth
2021-04-22 3:53 ` Thomas Huth
2021-04-22 5:47 ` Коренберг Марк
2021-05-02 5:16 ` Thomas Huth
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