[ovirt-users] Re: VM disk I/O
On April 21, 2020 2:57:13 PM GMT+03:00, Jayme <jaymef(a)gmail.com> wrote:
What is the vm optimizer you speak of?
Have you tried the high performance vm profile? When set it will prompt
you
to make additional manual changes such as configuring numa and
hugepages
etc
On Tue, Apr 21, 2020 at 8:52 AM <ozmen62(a)hotmail.com> wrote:
> On oVirt 4.3. i installed w10_64 with q35 cpu.
> i've used vm optimizer for better performans for end-users. it seams
good.
> But i need more performance guidelines.
> Ex.
> Our system has FC storage, is tere any options for better read/write
> performance
Check the performance by using multi queue and 'none' I/O scheduler.
>Hugepage,
Yes, VMs can benefit from Hugepages - but there are some open issues and you have to
leave that for oVirt 4.4
Also, check that your hosts cpus are in highest C state -> there are nice articles
about that.
There is an interesting thread about SPICE streaming for better in-VM performance.
Also, as it was mentioned - there are different VM types -> try the recommended
by Jayme
>write through
> Like this, if you have any suggestions, could you share
>
> Thanks
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