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On Thu, Apr 24, 2014 at 09:35:27AM +0000, Holger Hoffstätte wrote |
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> |
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> It depends on the CPU frequency governor. If CONFIG_X86_INTEL_PSTATE is |
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> set and active (depending on your CPU model), the traditional governors |
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> (like ondemand) and their correspondig sysfs entries are disabled. |
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> For example I have the former (cpufreq) entry on my old core2 laptop, |
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> but no such entry on my machines with i5/i7 with pstate despite the same |
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> 3.12.x kernel everywhere. |
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> Generally pstate is much better than ondemand for both performance and |
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> especially powersave mode. |
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It's an old AMD dual-core cpu (from /proc/cpuinfo) |
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vendor_id : AuthenticAMD |
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cpu family : 16 |
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model : 6 |
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model name : AMD Athlon(tm) II P320 Dual-Core Processor |
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stepping : 3 |
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microcode : 0x10000b6 |
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> Also AFAIK cpufrequtils are unmaintained/deprecated/dead, you should |
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> migrate to sys-power/cpupower. It's slightly different but IIRC easy |
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> to switch to. |
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Thanks. I've got it working. I prefer the "conservative" governor, |
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which doesn't jump around as much. Both cores now show... |
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maximum transition latency: 4.0 us. |
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hardware limits: 800 MHz - 2.10 GHz |
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available frequency steps: 2.10 GHz, 1.50 GHz, 800 MHz |
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available cpufreq governors: ondemand, userspace, powersave, conservative, performance |
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current policy: frequency should be within 800 MHz and 2.10 GHz. |
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The governor "conservative" may decide which speed to use |
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within this range. |
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current CPU frequency is 800 MHz (asserted by call to hardware). |
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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I don't run "desktop environments"; I run useful applications |
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