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Re: [Qemu-devel] [PATCH 0/2] nbd: add zero-init parameter
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From: |
Denis V. Lunev |
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Subject: |
Re: [Qemu-devel] [PATCH 0/2] nbd: add zero-init parameter |
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Date: |
Wed, 5 Oct 2016 13:56:35 +0300 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 |
On 10/05/2016 12:55 PM, Paolo Bonzini wrote:
>
> On 05/10/2016 11:33, Denis V. Lunev wrote:
>> When using a nbd block device, the info about necessity of prior disk
>> zeroing could significantly improve the speed of certain operations
>> (e.g. backups).
>>
>> This patch also will allow to preserve QCOW2 images during migration.
>> Management software now may specify zero-init option and thus abscent
>> areas in the QCOW2 areas will not be marked as zeroes and will remain
>> empty. This is tight distiction but it is here.
> I think Kevin said he wanted to avoid the URI shortcut, and instead
> preferred to use JSON specifications?
>
> Paolo
yep. filling myself stupid. Will resend, the patch will look MUSH shorter.
Den