[openstack] how to speed up live migration?

Ignazio Cassano ignaziocassano at gmail.com
Fri Aug 5 08:42:03 UTC 2022


Hi, I am going to try it.
Thanks

Il giorno ven 5 ago 2022 alle ore 10:40 Radosław Piliszek <
radoslaw.piliszek at gmail.com> ha scritto:

> On Fri, 5 Aug 2022 at 10:28, Ignazio Cassano <ignaziocassano at gmail.com>
> wrote:
> >
> > why when I do the first migration from A to B it takes 20 minutes and
> then, when I migrate from B to A it takes few seconds.
> > I wonder if after the first migration memory is reorganized.
> > In the first live migration it lost time to get memory pages ?
>
> Just curious. Did you try migrating the same instance again after
> that, i.e. again from A to B. Is it still fast or is it slow again?
> Does it only happen with long-running instances?
>
> -yoctozepto
>
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