[ovirt-users] Q: Optimal settings for DB hosting

[Gianluca Cecchi]

On Fri, Jan 19, 2018 at 11:15 AM, Yaniv Kaul <ykaul at redhat.com> wrote:

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> On Jan 19, 2018 10:52 AM, "andreil1" <andreil1 at starlett.lv> wrote:
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> Migration disabled.
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Why this enforcing? If the VM is so important I see it as a limitation not
to be able to move it in case of need


> Pass-through host CPU enabled
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I don't know if this is so important.
Tested with Oracle RDBMS and not used in my case.


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> Any idea of NUMA settings ?
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> Indeed. + Huge pages, in both host and guest.
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Do you think NUMA so essential? It implies non-migratable VM...
In my tests I didn't set NUMA


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> In short, use high performance VM. See ovirt.org feature page.
> Y.
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In my opinion the  main limitation of "High performance VM" is to be
not-migratable (probably implied because you set NUMA?)
In that case could it be possible to have NUMA as choice, so that at the
same time you can choose if you want a migratable or not-migratable high
performance VM?
Also CPU passthrough, I don't remember if it is included/fixed option in
high perf VM...

Gianluca
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