VMware Communities: Message List - >100% utilization for a VM

Re: >100% utilization for a VM

djacobs — Mon, 21 Nov 2005 18:32:43 GMT

Thanks

Re: >100% utilization for a VM

DougBaer — Mon, 21 Nov 2005 16:29:03 GMT

I just suspended the machine to reboot the host and turn HT back on and the VM spiked to 101%.

I have opened an SR (223299) and uploaded a screenshot to the FTP site.

Doug

Re: >100% utilization for a VM

DougBaer — Fri, 18 Nov 2005 17:33:03 GMT

Not yet. Once I see it happen again, I'll grab some screen shots. If you'd like, I can open an SR, but I'd have to send in the data from the database at this point because the server is only sitting at 92% utilization at the moment.

Maybe because I turned HT off (?)

If I don't see it by next week, I'll turn HT back on and check again. Deal?

Re: >100% utilization for a VM

djacobs — Fri, 18 Nov 2005 17:16:35 GMT

Hey Doug, Did you file an SR for this one? I was checking, but did not see anything. Also, if you could send screen shots as well?

Re: >100% utilization for a VM

GeorgeS — Thu, 17 Nov 2005 16:50:12 GMT

Sounds like their are a few calculations that have to be fixed for HT again. VMware had this problem when they initially supported HT in 2.1 and I think it took a couple revisions before they got it right.

Re: >100% utilization for a VM

DougBaer — Thu, 17 Nov 2005 16:48:22 GMT

No, this is a single proc VM -- the physical server had HT enabled (this is also the one that was reporting 16 virtual procs on a dual-proc machine with HT).

I've disabled that and will see if this happens again.

Re: >100% utilization for a VM

GeorgeS — Thu, 17 Nov 2005 15:58:23 GMT

Is this an SMP VM? 2-CPU physical server? If so, the ESX CPU utilization has always shown %utilization of total physical and granting for some stats measurement err (avg CPU utilization over different periods), the 61% of the total would be roughly equal to 112% of a single CPU.

>100% utilization for a VM

DougBaer — Thu, 17 Nov 2005 15:50:09 GMT

I have a VM that I've had running for almost three days with the cpubusy.vbs script (the same one from the VMware class) running inside it -- I just wanted something that would cause a lot of processor utilization for a long period of time.

Currently, VC reports on the VM's Summary tab that this VM is using 112% CPU. The ESX host shows only 61% utilization.

I need to bounce the ESX host to disable HT for another test and steal some parts from the server, but figured I'd ask before I did that.