Re: [PATCH v2 00/11] migration: Some enhancements and cleanups for 10.1

[Peter Xu <peterx@redhat.com>]

On Wed, Jun 11, 2025 at 08:15:55AM +0200, Mario Casquero wrote:
> This series has been successfully tested. The information displayed
> from the HMP info migrate command is more user-friendly, with the
> possibility of displaying the globals with info migrate -a.
> (qemu) info migrate -a
> Status: active
> Sockets: [
> tcp::::8888
> ]
> Globals:
>   store-global-state: on
>   only-migratable: off
>   send-configuration: on
>   send-section-footer: on
>   send-switchover-start: on
>   clear-bitmap-shift: 18
> 
> Tested-by: Mario Casquero <mcasquer@redhat.com>

Hey, Mario,

Thanks for doing this!

This is a specific HMP dump test on recv side, just to mention the major
change will be on the src side, so feel free to try that too.  That's what
patch 1 does.

Patch 2 changed recv side report for blocktime, but in your case you didn't
enable it, to cover tests on patch 2, you can enable postcopy-blocktime
feature and kickoff a postcopy migration.

And just to mention, the real meat in this series is actually the last
patch. :) If you want to test that, you'd likely want to apply another of
my series:

https://lore.kernel.org/r/20250609191259.9053-1-peterx@redhat.com

Then invoke postcopy test with some loads, then check the blocktime reports
again.  The other series added latency tracking to blocktime.  With that
extra series applied, you should be able to observe average page fault
latency reduction after the last patch, aka, the meat.

Note that this is not a request to have you test everything!  Just to
mention the bits from test perspective, so just take it as FYI.  I
appreciate your help already to test on the recv side!

Thanks,

-- 
Peter Xu