Am 02.06.23 um 11:13 schrieb DERUMIER, Alexandre: >> >> "catastrophic performance collapses" doesn't sound very promising :/ >> > > I have found another thread here: > https://lore.kernel.org/all/0484ea3f-4ba7-4b93-e976-098c57171...@redhat.com/ > where paolo have done benchmark with only 3% difference. > but yes, still slower anyway.
So the "catastrophic performance collapses" might be a bit over the top or the situation has improved since then for non-paravirtualized locks. > at minimum, it could be interesting to expose the flag in the gui, for > users really needed intel-amd migration. > I'm not opposed to that. We could also add a short note to the docs that it might be worth a try to disable the flag if you need cross-vendor migration and the default model causes issues. IIRC, from some forum threads, other people did have success with cross-vendor migration just selecting kvm64 or Nehalem in the UI, i.e. even with the flag. Likely depends on concrete host CPU models/kernels whether it's an issue or not. _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
