I have a ryzen cpu and my cpu has been freezing/crashing a lot over the years and I couldnt' find a solution until recently and I'm told setting the max_cstate should solve my issue.
But how do I check if I set processor.max_cstate correctly from the terminal/tilix?
Current cpu: AMD Ryzen 3 1200 Quad-Core Processor
OS: Ubuntu Desktop 20.04
71 Answer
You can check the number of idle states your system currently supports by examination. Example 1 (limitation in place):
~$ grep . /sys/devices/system/cpu/cpu0/cpuidle/state*/name /sys/devices/system/cpu/cpu0/cpuidle/state0/name:POLL /sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1 Example 2 (same computer, no limitation):
$ grep . /sys/devices/system/cpu/cpu0/cpuidle/state*/name /sys/devices/system/cpu/cpu0/cpuidle/state0/name:POLL /sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1 /sys/devices/system/cpu/cpu0/cpuidle/state2/name:C1E /sys/devices/system/cpu/cpu0/cpuidle/state3/name:C3 /sys/devices/system/cpu/cpu0/cpuidle/state4/name:C6 /sys/devices/system/cpu/cpu0/cpuidle/state5/name:C7s /sys/devices/system/cpu/cpu0/cpuidle/state6/name:C8 /sys/devices/system/cpu/cpu0/cpuidle/state7/name:C9 /sys/devices/system/cpu/cpu0/cpuidle/state8/name:C10 Just make the cpu number a wildcard if you want the list for everything (typically the same for each CPU).
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