[vfio-users] Performance Across Distributuons

Will Marler will at wmarler.com
Sat Sep 5 19:21:07 UTC 2015


>
>
> I'm just wondering if the differences in performance across distros is
> negligible, or if there are distros that perform better than others?
>
>
Comparing across distros is hard because they will have different
qemu/kernel versions. Ubuntu 12.02, for example, uses an older kernel &
older qemu version than Arch, or Fedora 22/23. I think the generalization
"newer has better performance and fewer bugs" is true here.


> My second question would be are there distros that have less involved
> implementations for get gpu pass through up and running?
>

Not that I'm aware of. I'm of the opinion that using virt-manager is
simpler and less error prone than authoring your own qemu launch script
(custom launch script & virt-manager being the 2 paths to configuration),
but neither is distribution-dependent.

-- Will
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