What changes do I need to make to ensure successful frequency adjustment on a Huawei KunLun 90XX server with Intel E7-v4 CPU?

Solution Verified - Updated -

Issue

CPU frequency adjustment may not perform as expected when using the default intel_pstate driver on Red Hat Enterprise 7 that runs on a Huawei KunLun 90XX server with Intel E7-v4 CPU.

Environment

  • Huawei KunLun 9008/9016/9032 server with Intel E7-v4 CPU
  • Red Hat Enterprise Linux 7.2 and later version

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