IT Solutions Technology Blog

root@RA-VMWARE8-01:~] esxtop
7:18:50pm up 3:31, 608 worlds, 1 VMs, 2 vCPUs; CPU load average: 0.01, 0.01, 0.01
PCPU USED(%): 1.1 0.7 7.7 1.0 NUMA: 2.6 AVG: 2.6
PCPU UTIL(%): 0.9 0.7 3.5 0.9 NUMA: 1.5 AVG: 1.5

ID GID NAME NWLD %USED %RUN %SYS %WAIT %VMWAIT %RDY %IDLE %OVRLP
33828 33828 esxtop.266729 1 6.93 2.84 0.00 97.15 – 0.00 0.00 0.00
22209 22209 VA-W2k22s-01d 10 1.61 1.11 0.02 998.73 4.31 0.11 194.54 0.01
1 1 system 289 1.27 395.64 0.00 28501.51 – 5.75 0.00 0.20
16358 16358 hostd.264379 27 0.21 0.14 0.00 2699.64 – 0.05 0.00 0.00
19 19 userworld 4 0.10 0.07 0.00 399.97 – 0.00 0.00 0.00
22002 22002 dcui.265114 4 0.06 0.06 0.00 399.79 – 0.13 0.00 0.00
…

press „n“ to change to the network tab

7:25:21pm up 3:38, 608 worlds, 1 VMs, 2 vCPUs; CPU load average: 0.02, 0.02, 0.01

PORT-ID USED-BY TEAM-PNIC DNAME PKTTX/s MbTX/s PSZTX PKTRX/s MbR
67108866 Management n/a vSwitch0 0.00 0.00 0.00 0.00 0
67108867 vmk0 vusb0 vSwitch0 0.78 0.00 318.00 0.19 0
67108870 Shadow of vusb0 n/a vSwitch0 0.00 0.00 0.00 0.00 0
67108871 265174:VA-W2k22s-01d vusb0 vSwitch0 0.00 0.00 0.00 2.92 0
2214592517 vusb0 – vSwitch0 0.78 0.00 318.00 3.89 0

VMware vSphere Hypervisor (ESXi 8.x) – if the processor supports it you should enable Turbo Boost in the BIOS because Intel Turbo Boost Technology is a built-in software accelerator that can speed up the CPU depending on the workload whenever the workload requires more speed and Turbo boost accelerates the CPU up to the limit allowed in the tech specifications if the CPU is working below its limits and the user’s application needs more performance the CPU is able to dynamically increase until the upper limit of frequency to maximize performance for short periods of time Turbo Boost Technology can make the processor operate at a power level that is higher than its TDP configuration and the power specified on the data sheet

What is the difference between C states and P states – C states allow the CPU to go into sleep mode whenever they are idle this means that at some point when it’s not necessary to use full power the system will lower CPU performance if you do want to get the best performance you should disable all C states in BIOS … P states make turbo mode work when something requires extra performance but doesn’t need all the cores

The way to go is to disable C states and enable P states it is the setting called OS Control Mode – if you set High Performance the VMware vSphere Hypervisor (ESXi 8.x) won’t use any optimization techniques and the CPU will run full speed all the time

At boot up press SHIFT+O to add the following kernel option

allowLegacyCPU=true

VMware Tools 12.2.0 – release notes