>> I'm curious what your scaling_driver is, when you are not using >> acpi_cpufreq. > > # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver > intel_pstate > >> And what happens when your current cpufreq driver is >> unloaded, and instead acpi_cpufreq is loaded (which seems to be more >> generic and support AMD and Intel CPUs). > > Hm seems like intel_pstate is compiled into the kernel. > But it sounds like the right driver for my CPU anyway, where > acpi_cpufreq is some generic catchall stuff. >
Thanks for the information. Looks like the intel_pstate driver doesn't support statistics reporting: - https://lkml.org/lkml/2013/4/27/64 - https://lkml.org/lkml/2014/9/9/561 He also mentions that intel_pstate can be disabled via kernel cmdline, so that the ACPI driver is used instead. So it looks like this kind of information will not be available on some systems. I don't know if there would be something similar available that munin could use.
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