[Engine-devel] what does engine with cpuIdle?

[Omer Frenkel]

----- Original Message -----
> From: "Laszlo Hornyak" <lhornyak at redhat.com>
> To: "engine-devel" <engine-devel at ovirt.org>
> Sent: Monday, September 10, 2012 3:51:59 PM
> Subject: [Engine-devel] what does engine with cpuIdle?
> 
> hi,
> 
> I am trying to change a behavior in vdsm. When you pass 100% load on
> a VM, it will stop reporting further load and will keep telling 100%
> until the load drops under 100% again in it's cpuIdle information.
> This is totally correct if you have only single-cpu VM's, but it is
> false when you have multiple vcpu's, I think the cpuIdle information
> should not be on a 0-100 scale, but on a 0-100*vcpus scale.
> 
> So I submitted this patch to vdsm: http://gerrit.ovirt.org/#/c/7892/2
> and Dan pointed out that some functionality may depend on the value
> in the 0-100 interval. For me it seems it is ignored and the load is
> calculated only from sysCpu + userCpu. Does anyone build on the
> cpuIdle value?
> 
> Thanks,
> Laszlo
>

you are right, engine doesn't save cpuIdle for vm,
so it's not in use in the engine.
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