6.7

5 Select the parameter and click the Edit button.
Note The default values of power management parameters match the Balanced policy.
Parameter Description
Power.UsePStates Use ACPI P-states to save power when the processor is busy.
Power.MaxCpuLoad Use P-states to save power on a CPU only when the CPU is busy for less than
the given percentage of real time.
Power.MinFreqPct Do not use any P-states slower than the given percentage of full CPU speed.
Power.UseStallCtr Use a deeper P-state when the processor is frequently stalled waiting for events
such as cache misses.
Power.TimerHz Controls how many times per second ESXi reevaluates which P-state each CPU
should be in.
Power.UseCStates Use deep ACPI C-states (C2 or below) when the processor is idle.
Power.CStateMaxLatency Do not use C-states whose latency is greater than this value.
Power.CStateResidencyCoef When a CPU becomes idle, choose the deepest C-state whose latency multiplied
by this value is less than the host's prediction of how long the CPU will remain
idle. Larger values make ESXi more conservative about using deep C-states,
while smaller values are more aggressive.
Power.CStatePredictionCoef A parameter in the ESXi algorithm for predicting how long a CPU that becomes
idle will remain idle. Changing this value is not recommended.
Power.PerfBias Performance Energy Bias Hint (Intel-only). Sets an MSR on Intel processors to an
Intel-recommended value. Intel recommends 0 for high performance, 6 for
balanced, and 15 for low power. Other values are undefined.
6 Click OK.
vSphere Resource Management
VMware, Inc. 27