Re: Schlaeger is doing the right thing
From the last time I looked at this, the performance increase from hyperthreading is not usually as high as 30%, but I don't have the time to dig up the more detailed refs at this time. It will always be dependent on the details of the loads (and the plural is important) placed on the cores.
But to add some more useful detail to the that general bit above, VMWare 6.7 U2 has some specific techniques that will reduce the impact from the security limits required by the processor bugs that have made hypervisors dangerous: https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/performance/scheduler-options-vsphere67u2-perf.pdf
Biting the hand that feeds IT
