Merge CPU cores

[warchik2107]

Hello everyone!
Is it possible to "merge" CPU threads in proxmox to improve perfomance for VMs, that can't use many threads?

For example, i have Dell R430 with two CPUs - 64 x Intel(R) Xeon(R) CPU E5-2698 v3 @ 2.30GHz (2 Sockets), but the most important VM on this host has a license limitation on the number of cores used - 12.

Is it possible to "deceive" VM and give it 16 virtual threads that will have the perfomance of 64 ?
I experimented with the parameters VCPUs, CPU Units and others, but didn't get any results
Please help

 

[LnxBil]

64 x Intel(R) Xeon(R) CPU E5-2698 v3 @ 2.30GHz (2 Sockets)

Yes ... much faster hardware ... most of the time, single core performance is key, so buy the fastest you can with as few cores as you can live with. If the work is done quicker, you don't need sooooo many cores. Better buy 8 or 12 core with > 3GHz if you need to have Intel or just replace your dual socket system with a single socket epyc with e.g. 48C/96T @ 3,6 GHz faster in any measureable way.

 

[warchik2107]

Yes ... much faster hardware ... most of the time, single core performance is key, so buy the fastest you can with as few cores as you can live with. If the work is done quicker, you don't need sooooo many cores. Better buy 8 or 12 core with > 3GHz if you need to have Intel or just replace your dual socket system with a single socket epyc with e.g. 48C/96T @ 3,6 GHz faster in any measureable way.

Thanks!