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Re: [Qemu-devel] trim in windows guest witch virtio
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] trim in windows guest witch virtio |
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Date: |
Tue, 23 Jul 2013 08:34:49 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 |
Il 23/07/2013 03:05, Libaiqing ha scritto:
> Hi paolo,
> Recently I test trim function,and it works well in linux guest with ext4
> fs.
>
> How to test it in windows guest? I got some info like this:
> 1 windows7 can send discard command when the storage device is ssd;
> 2 find a tool like 'fstrim', 'TRIM' the volume manually.
I think it only works with IDE and AHCI on Windows. You need a filter
driver to send it on SCSI disks.
Paolo