Trying to get 1 Core + 1 HT Thread in Hyper-V

[Patrick]

I am trying to test 1/24th of a dual Intel Xeon E5-2697 V2 system to see how much performance one gets with that setup. I can set cores to 2 in Hyper-V but it elects to use two full cores rather than a core + HT.

Any thoughts on how to test this?

 

[nitrobass24]

Can you disable the cores of the CPU in the BIOS?

Just curious...how are you able to tell its using two real cores opposed to 1+1HT?

 

[Patrick]

In a few benchmarks performance it is scaling around 98% of single core which is too much for HT. The disable core idea is a good one. May also just build 23-24 VMs.

 

[mackle]

I'm not an expert with Hyper-V, but it looks like it's just a process running in windows? Couldn't you set the affinity of the process manually to a full core and it's hyperthreaded core? You could also use project lasso... The Folding@home guys play around with this quite a lot.

I guess you're wanting to do this automatically, rather than manually though?

 

[Darkytoo]

I am trying to test 1/24th of a dual Intel Xeon E5-2697 V2 system to see how much performance one gets with that setup. I can set cores to 2 in Hyper-V but it elects to use two full cores rather than a core + HT.

Any thoughts on how to test this?

Probably easiest way would be to simply disable hyperthreading in the BIOS.

 

[Patrick]

Probably easiest way would be to simply disable hyperthreading in the BIOS.

True, but I am trying to get 1 core + 1 HT thread. That is what makes this fun