Maximum CPU frequency is not maintained

Solution Verified - Updated -

Issue

Maximum CPU frequency is no maintained even though

  • Either tuned profiles with maximum performance are set (throughput-performance, latency-performance)
  • Or
    • tuned is disabled and having grub set with: intel_idle.max_cstate=0 processor.max_cstate=1 AND
    • Server is set to maximum performance in BIOS

Environment

  • Red Hat Enterprise Linux 7.2 and higher

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