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Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to
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From: |
Richard W.M. Jones |
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Subject: |
Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes. |
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Date: |
Mon, 30 Jul 2012 14:51:36 +0100 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Jul 27, 2012 at 09:01:38PM +0200, Paolo Bonzini wrote:
> Or just finish up discard support and use the existing fstrim command of
> qemu-ga. :)
What's actually involved to do this? I noticed that a virtio-scsi on
qcow2 v3 device exported to the guest does not appear to support TRIM
at all (see attached test script and output).
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
test.sh
Description: Bourne shell script
test-output.txt
Description: Text document
- [Qemu-devel] [PATCH] Detect zero writes (for discussion only, not to be applied), Richard W.M. Jones, 2012/07/26
- [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Richard W.M. Jones, 2012/07/26
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Anthony Liguori, 2012/07/27
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Paolo Bonzini, 2012/07/27
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes.,
Richard W.M. Jones <=
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Paolo Bonzini, 2012/07/30
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Eric Blake, 2012/07/30
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Paolo Bonzini, 2012/07/30
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Kevin Wolf, 2012/07/30
- Re: [Qemu-devel] [PATCH] block: Add -drive detect_zero=on|off option to detect all zero writes., Richard W.M. Jones, 2012/07/30
Re: [Qemu-devel] [PATCH] Detect zero writes (for discussion only, not to be applied), Anthony Liguori, 2012/07/27