oVIRT 3.5 / CPU / Virtual Machines
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I am running oVIRT 3.5.6 right now on Dell Blade Chassis, each oVIRT node
has 2 x 10 core processors, showing 40 VCPU cause of hyper-threading. We
are trying to figure out for a very log intensive application that requires
lots of specs what the optimal configuration would be to allow it to use
utilize all cores on the blade? Is there advise on this? Like should we
disable hyperthreading? What's the general rule of thumb?
--
Devin Acosta
Red Hat Certified Architect, LinuxStack
602-354-1220 || devin(a)linuxguru.co
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On Wed, Mar 1, 2017 at 12:38 AM Devin Acosta <devin(a)pabstatencio.com> wrote:
I am running oVIRT 3.5.6 right now on Dell Blade Chassis, each oVIRT node
has 2 x 10 core processors, showing 40 VCPU cause of hyper-threading. We
are trying to figure out for a very log intensive application that requires
lots of specs what the optimal configuration would be to allow it to use
utilize all cores on the blade? Is there advise on this? Like should we
disable hyperthreading? What's the general rule of thumb?
1. Upgrade to the latest oVirt - which provides support for the latest and
greatest hypervisor features.
2. What is your bottleneck - CPU, storage, network, some of each? Many
times, careful NUMA pinning is a good start - after you've ensured the rest
is OK (use of virtio, enough RAM and CPU per VM, storage and network
configurations, etc.). Also - some applications benefit from
hyper-threading, some don't - experiment with both settings.
Y.
--
Devin Acosta
Red Hat Certified Architect, LinuxStack
602-354-1220 <(602)%20354-1220> || devin(a)linuxguru.co
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Yaniv Kaul