Ubuntu
linux-signed-lowlatency-hwe-6.5 package

  1. Bug #2051733
  2. Comment #3

Comment 3 for bug 2051733

Revision history for this message
Doug Smythies (dsmythies) wrote : Re: Specifying nohz_full disables CPU frequency scaling

I confirm your findings.

In my case I am using: The intel_pstate CPU frequency scaling driver; powersave CPU frequency scaling governor; HWP, HardWare Pstate, control is disabled; A mainline kernel, 6.8-rc1, compiled with the kernel configuration changes being considered in that other bug report. My main test server with Ubuntu 20.04.6.

Note also, in my case, the CPU frequencies actually seem to be scaling properly, it is just that they are not being reported properly via "/sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq".