On Tue, 23 Dec 2014 21:06:00 +0100, Reiner Herrmann wrote: > > # ls -la /sys/devices/system/cpu/cpu*/cpufreq > > /sys/devices/system/cpu/cpu0/cpufreq: > > total 0 > > drwxr-xr-x 2 root root 0 Dec 21 14:39 . > > drwxr-xr-x 9 root root 0 Dec 21 14:56 .. > > -r--r--r-- 1 root root 4096 Dec 21 14:39 affected_cpus > > -r--r--r-- 1 root root 4096 Dec 19 00:05 cpuinfo_cur_freq > > -r--r--r-- 1 root root 4096 Dec 21 14:39 cpuinfo_max_freq > > -r--r--r-- 1 root root 4096 Dec 21 14:39 cpuinfo_min_freq > > -r--r--r-- 1 root root 4096 Dec 21 14:39 cpuinfo_transition_latency > > -r--r--r-- 1 root root 4096 Dec 21 14:39 related_cpus > > -r--r--r-- 1 root root 4096 Dec 21 14:39 scaling_available_governors > > -r--r--r-- 1 root root 4096 Dec 21 14:39 scaling_cur_freq > > -r--r--r-- 1 root root 4096 Dec 21 14:39 scaling_driver > > -rw-r--r-- 1 root root 4096 Dec 21 14:39 scaling_governor > > -rw-r--r-- 1 root root 4096 Dec 21 14:39 scaling_max_freq > > -rw-r--r-- 1 root root 4096 Dec 21 14:39 scaling_min_freq > > -rw-r--r-- 1 root root 4096 Dec 21 14:39 scaling_setspeed > > I noticed some additional files in my cpufreq/ directories: > -r--r--r-- 1 root root 4096 Dec 23 20:12 bios_limit > -rw-r--r-- 1 root root 4096 Dec 23 20:12 cpb > -r--r--r-- 1 root root 4096 Dec 23 20:12 freqdomain_cpus > -r--r--r-- 1 root root 4096 Dec 23 20:12 scaling_available_frequencies > drwxr-xr-x 2 root root 0 Dec 23 20:12 stats
Mhm. > 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. Cheers, gregor -- .''`. Homepage: http://info.comodo.priv.at/ - OpenPGP key 0xBB3A68018649AA06 : :' : Debian GNU/Linux user, admin, and developer - http://www.debian.org/ `. `' Member of VIBE!AT & SPI, fellow of the Free Software Foundation Europe `- NP: Peter Jones: Try A Little Harder
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