[pve-devel] [pbs-devel] Chunk verification speedup discussion, similar speedup opportunities elsewhere

[Fabian Grünbichler]

On July 28, 2025 3:14 pm, Adam Kalisz wrote:
> On Fri, 2025-07-25 at 14:46 +0200, Fabian Grünbichler wrote:
>> On July 25, 2025 1:23 pm, Adam Kalisz wrote:
>> > Similarly the sync performance between two Proxmox Backup Servers
>> > and
>> > live-migration got mentioned in various places.
>> 
>> do you mean live-restore here? live migration has nothing to do with
>> PBS..
> 
> I threw more things into a single basked as the e-mail was sent to both
> lists and meant live migration that seems like it could go faster in
> some cases. (But that might be code that originates in the QEMU
> project, right?) We could of course have a look at live-restore or even
> some things like migration from VMware/ ESXi too (again, unrelated to
> PBS).

yes, live migration also has some performance optimizations that we want
to check out, in particular the multi-FD feature:

https://bugzilla.proxmox.com/show_bug.cgi?id=5766

live restore uses an entirely different mechanism, and migration from
ESXi uses yet another mechanism that is bottle-necked by the API on the
other side at the moment.