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Re: [Qemu-devel] live migration vs device assignment (motivation)
From: |
Lan Tianyu |
Subject: |
Re: [Qemu-devel] live migration vs device assignment (motivation) |
Date: |
Mon, 04 Jan 2016 10:15:20 +0800 |
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Mozilla/5.0 (X11; Linux i686 on x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 |
On 2015年12月30日 00:46, Michael S. Tsirkin wrote:
> Interesting. So you sare saying merely ifdown/ifup is 100ms?
> This does not sound reasonable.
> Is there a chance you are e.g. getting IP from dhcp?
>
> If so that is wrong - clearly should reconfigure the old IP
> back without playing with dhcp. For testing, just set up
> a static IP.
MAC and IP are migrated with VM to target machine and not need to
reconfigure IP after migration.
>From my test result, ixgbevf_down() consumes 35ms and ixgbevf_up()
consumes 55ms during migration.
--
Best regards
Tianyu Lan
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