Il 04/10/2013 09:07, Alexey Kardashevskiy ha scritto:
> On 10/04/2013 05:05 PM, Paolo Bonzini wrote:
>> Il 04/10/2013 08:22, Alexey Kardashevskiy ha scritto:
>>>
>>> btw I tried "discard=on" as you described (with if=virtio) and received
>>> an error:
>>> [root@localhost ~]# fstrim -v /
>>> fstrim:
On 10/04/2013 05:05 PM, Paolo Bonzini wrote:
> Il 04/10/2013 08:22, Alexey Kardashevskiy ha scritto:
>>
>> btw I tried "discard=on" as you described (with if=virtio) and received
>> an error:
>> [root@localhost ~]# fstrim -v /
>> fstrim: /: FITRIM ioctl failed: Operation not supported
>>
>> In my c
Il 04/10/2013 08:22, Alexey Kardashevskiy ha scritto:
>
> btw I tried "discard=on" as you described (with if=virtio) and received
> an error:
> [root@localhost ~]# fstrim -v /
> fstrim: /: FITRIM ioctl failed: Operation not supported
>
> In my case if=virtio means virtio-blk. If I use virtio-scsi
Hi Paolo!
On Thu, Aug 8, 2013 at 10:00 PM, Paolo Bonzini wrote:
> On 08/08/2013 12:34 PM, Ralf Ramsauer wrote:
>
>> Hi,
>>
>> QCOW2 uses a similar idea like file holes (sparse files) on filesystems
>> [1].
>> RAW Images also may use file holes.
>>
>> If qemu would support TRIM, then the guest
On 08/08/2013 12:34 PM, Ralf Ramsauer wrote:
Hi,
QCOW2 uses a similar idea like file holes (sparse files) on filesystems [1].
RAW Images also may use file holes.
If qemu would support TRIM, then the guest could easily discard and zero
all unused blocks.
QEMU supports trim. 1.5 supports it wi
On 08/08/2013 12:34, Ralf Ramsauer wrote:
> Hi,
>
> QCOW2 uses a similar idea like file holes (sparse files) on filesystems [1].
> RAW Images also may use file holes.
>
> If qemu would support TRIM, then the guest could easily discard and zero
> all unused blocks.
> The host system could detect a
Hi,
QCOW2 uses a similar idea like file holes (sparse files) on filesystems [1].
RAW Images also may use file holes.
If qemu would support TRIM, then the guest could easily discard and zero
all unused blocks.
The host system could detect all unused blocks in a (e.g.) qcow2 image
and shrink it dow
