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Disable CPU idle states and lock CPU freq to max on SIMATIC 427E
Posted by Anonymous on Thu 28th Apr 2022 12:04
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modification of post by Anonymous (view diff)

  1. ## Disable CPU idle states on SIMATIC 427E
  2. ~# modprobe msr
  3. ~# modprobe cpuid
  4. ~# modprobe intel_pstate
  5. ~# cpupower idle-set --disable-by-latency 0
  6. Idlestate 0 disabled on CPU 0
  7. Idlestate 1 disabled on CPU 0
  8. Idlestate 2 disabled on CPU 0
  9. Idlestate 3 disabled on CPU 0
  10. Idlestate 4 disabled on CPU 0
  11. Idlestate 5 disabled on CPU 0
  12. Idlestate 6 disabled on CPU 0
  13. Idlestate 7 disabled on CPU 0
  14. Idlestate 8 disabled on CPU 0
  15. Idlestate 0 disabled on CPU 1
  16. Idlestate 1 disabled on CPU 1
  17. Idlestate 2 disabled on CPU 1
  18. Idlestate 3 disabled on CPU 1
  19. Idlestate 4 disabled on CPU 1
  20. Idlestate 5 disabled on CPU 1
  21. Idlestate 6 disabled on CPU 1
  22. Idlestate 7 disabled on CPU 1
  23. Idlestate 8 disabled on CPU 1
  24. ~# (for i in 0 1 ; do tee <"/sys/devices/system/cpu/cpu${i}//cpufreq/scaling_max_freq" "/sys/devices/system/cpu/cpu${i}//cpufreq/scaling_min_freq" ; done)
  25. 1600000
  26. 1600000

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