Number of CPUs

[xokia]

Might be a dumb question I'm sure it probably gets asked a lot. I have an i9-13900 this has 24 cores. 8 P-cores + 16 E-cores

Under proxmox->datacenter->summary->resources it says 32 CPUs and I get a % utilization from this number.
Why is it showing 32 instead of 24?

 

[leesteken]

Might be a dumb question I'm sure it probably gets asked a lot. I have an i9-13900 this has 24 cores. 8 P-cores + 16 E-cores

Under proxmox->datacenter->summary->resources it says 32 CPUs and I get a % utilization from this number.
Why is it showing 32 instead of 24?

The P-cores can run 2 threads each and, because they can run at the same time, they are counted separately. Therefore you have 32 (8x2+16) execution units (CPUs).

 

[xokia]

The P-cores can run 2 threads each and, because they can run at the same time, they are counted separately. Therefore you have 32 (8x2+16) execution units (CPUs).

Thank you I thought it might be something like that but saw other posts mention threads do not matter only physical cores instead of logical cores matter.

 

[leesteken]

Thank you I thought it might be something like that but saw other posts mention threads do not matter only physical cores instead of logical cores matter.

The extra threads often don't matter for performance. Your E-cores can't process twice as much in general but they can do a second thing when the first thing is waiting for memory, which makes it look like doing two things at once.