Re: [Xen-users] Live migration: 2500ms downtime

["Marconi Rivello" <marconirivello@xxxxxxxxx>]

Hi, Luciano.

On 8/10/07, Luciano Rocha <strange@xxxxxxxxxxxxx> wrote:

On Fri, Aug 10, 2007 at 12:42:08PM -0300, Marconi Rivello wrote:
> Another issue that I described on a previous email (which, unfortunately,
> didn't get any replies) is that this downtime increases to more than 20
> seconds if I set the domU's memory to 512MB (the maxmem set is 1024MB). I
> repeated the test successively, from one side to the other, with mem set to
> 512 and 1024, and the result was always the same. Around 3s with mem =
> maxmem, and around 24s with mem=512 and maxmem=1024.
>

You are using the option --live to migrate, aren't you?

Yes, I am. :)
Even if I weren't, it would make sense to expect a lower downtime (or the same downtime) by reducing the domU memory. But it takes longer if I reduce the domU's memory.

Would you happen to have any ideas on why it behaves like that?

--
lfr
0/0

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Thanks,
Marconi.
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