From: "Richard W.M. Jones" <rjones@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Trying to get fstrim / discard=unmap to work
Date: Mon, 10 Mar 2014 17:15:50 +0000 [thread overview]
Message-ID: <20140310171550.GQ1346@redhat.com> (raw)
In-Reply-To: <531DEEDD.20007@redhat.com>
On Mon, Mar 10, 2014 at 05:57:01PM +0100, Paolo Bonzini wrote:
> Il 10/03/2014 17:14, Richard W.M. Jones ha scritto:
> >On Mon, Mar 10, 2014 at 04:11:20PM +0000, Richard W.M. Jones wrote:
> >>Guest:
> >> - guest kernel: 3.13.4-200.fc20.x86_64
> >> - ext4 guest filesystem
> >> - fstrim from util-linux 2.24.1
> >> - cat /sys/block/sda/device/scsi_disk/*/provisioning_mode
> >> unmap
> >
> >I noticed that I wasn't mounting the guest filesystem with '-o discard'.
> >However it still doesn't work even after adding this option.
>
> Works here:
Indeed. And now it works here too. Very strange, and sorry for
the noise.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top
next prev parent reply other threads:[~2014-03-10 17:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-10 16:11 [Qemu-devel] Trying to get fstrim / discard=unmap to work Richard W.M. Jones
2014-03-10 16:14 ` Richard W.M. Jones
2014-03-10 16:57 ` Paolo Bonzini
2014-03-10 17:15 ` Richard W.M. Jones [this message]
2014-03-11 20:00 ` Richard W.M. Jones
2014-03-12 17:55 ` Paolo Bonzini
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