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On Thursday 24 April 2014 10:13:39 Neil Bothwick wrote: |
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> On Thu, 24 Apr 2014 02:27:05 -0400, Walter Dnes wrote: |
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> > [aa1][root][/usr/src/linux] /etc/init.d/cpufrequtils start |
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> > |
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> > * Caching service dependencies ... [ ok ] |
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> > * Running cpufreq-set --governor conservative -- ... |
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> > |
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> > /usr/libexec/cpufrequtils-change.sh: line 26: cd: |
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> > /sys/devices/system/cpu/cpufreq: No such file or directory [ !! ] |
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> > |
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> > * ERROR: cpufrequtils failed to start |
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> |
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> I get a similar message, it appears to be looking in the wrong place. |
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> |
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> /sys/devices/system/cpu/cpufreq does not exist but |
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> /sys/devices/system/cpu/cpu{0..3}/cpufreq do |
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Strange, on my system it does exist: |
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|
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# ls -lsa /sys/devices/system/cpu/cpufreq* |
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total 0 |
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0 drwxr-xr-x 2 root root 0 Apr 24 11:19 . |
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0 drwxr-xr-x 10 root root 0 Apr 24 07:06 .. |
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0 -r--r--r-- 1 root root 4096 Apr 24 11:19 boost |
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along with the cpu{0..3} options. |
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When going through the CPUFREQ options in menuconfig, the following option |
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mentions a "boost" entry: |
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********** |
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CONFIG_X86_ACPI_CPUFREQ_CPB: |
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The powernow-k8 driver used to provide a sysfs knob called "cpb" |
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to disable the Core Performance Boosting feature of AMD CPUs. This |
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file has now been superseeded by the more generic "boost" entry. |
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By enabling this option the acpi_cpufreq driver provides the old |
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entry in addition to the new boost ones, for compatibility reasons. |
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Symbol: X86_ACPI_CPUFREQ_CPB [=y] |
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Type : boolean |
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Prompt: Legacy cpb sysfs knob support for AMD CPUs |
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********* |
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-- |
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