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/Power/PerfBias defaults to 4294967294 and cannot be changed on ESXi 6.5 Hosts (2150405)

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Purpose

The advanced configuration option /Power/PerfBias is meant to let you adjust the value of the Intel Performance Energy Bias Hint register that is used in the Custom power policy.

Starting in ESXi 6.5, the default is a special value that instructs the vmkernel to automatically determine the register setting according to logic in the Balanced power policy.

Resolution

This is a known issue affecting VMware ESXi 6.5.

Currently there is no resolution or workaround for this issue.

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