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Re: [PATCH v2 01/10] migration: Increase default number of multifd chann
Dr. David Alan Gilbert
Re: [PATCH v2 01/10] migration: Increase default number of multifd channels to 16
Fri, 3 Jan 2020 17:01:14 +0000
* Daniel P. Berrangé (address@hidden) wrote:
> On Wed, Dec 18, 2019 at 03:01:10AM +0100, Juan Quintela wrote:
> > We can scale much better with 16, so we can scale to higher numbers.
> What was the test scenario showing such scaling ?
> In the real world I'm sceptical that virt hosts will have
> 16 otherwise idle CPU cores available that are permissible
> to use for migration, or indeed whether they'll have network
> bandwidth available to allow 16 cores to saturate the link.
With TLS or compression, the network bandwidth could easily be there.
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> |: https://libvirt.org -o- https://fstop138.berrange.com :|
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Dr. David Alan Gilbert / address@hidden / Manchester, UK
Re: [PATCH v2 01/10] migration: Increase default number of multifd channels to 16, Daniel P . Berrangé, 2020/01/03