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Tags: 14.04   cpu  
Link: πŸ” See Original Answer on Ask Ubuntu πŸ”—

URL: https://askubuntu.com/q/837563
Title: How to know CPU frequency?
ID: /2016/10/15/How-to-know-CPU-frequency_
Created: October 15, 2016
Upload: November 24, 2022    Layout:  post
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The first answer is a great one. The OP asked for β€œsome” terminal commands. I’ll throw in some extras, because every question can have many answers.

This is another way of seeing current frequencies for EVERY CPU:

rick@dell:~$  sudo cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
[sudo] password for rick: 
2911523
2978173
2825097
3068554
2888232
2038769
2891894
3134619
────────────────────────────────────────────────────────────────
rick@dell:~$ 

You can shorten the above output by replacing * with a given CPU number such as 0 for the first CPU or 7 for the last CPU (on an 8 CPU system).

Another way of getting CPU frequencies without sudo powers is:

rick@dell:~$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq
3174316
3223095
3250781
3214160
3211962
3222802
3237451
3245654
────────────────────────────────────────────────────────────────
rick@dell:~$ 

These are other commands in regards to Frequencies and the CPU that you might like to try out:

cat /sys/class/thermal/thermal_zone*/temp
cat /sys/devices/system/cpu/intel_pstate/no_turbo
cat /sys/devices/system/cpu/intel_pstate/turbo_pct
cat /sys/devices/system/cpu/intel_pstate/num_pstates
cat /sys/devices/system/cpu/intel_pstate/min_perf_pct
cat /sys/devices/system/cpu/intel_pstate/max_perf_pct
cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_min_freq
cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_max_freq
cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_transition_latency
cat /sys/devices/system/cpu/cpu*/cpufreq/affected_cpus
cat /sys/devices/system/cpu/cpu*/cpufreq/related_cpus
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors 
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_min_freq
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_setspeed 
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver

Once again you can replace * with a given CPU number to shorten output.

⇧ Where are sudo's insults stored? Should I try Ubuntu 16:10?  β‡©