VMWare, number of vCPU
Posted on 2012-03-17
I know I am a little slow about this, but I have been experimenting, and yes, my VM's perform better with less vCPU, instead of more, especially when they are not running at a high CPU utilization
So from reading the posts and the documentation, what I am gleaning is that the scheduler is swapping the vCPU'sfrequently, and with less vCPU it basically swaps less often,a nd can obtain a higher performance.
Is this correct. Can anyone enlighten me as to the 'core' reasons less vCPU seems to improve performance.