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Apparently, though unproven, at 18:34 on Tuesday 10 May 2011, James did opine |
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thusly: |
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|
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> Alan McKinnon <alan.mckinnon <at> gmail.com> writes: |
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> > otherwise. Just enable ondemand, disable everything else, and et the |
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> > kernel |
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> |
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> > get on with doing what it does best: |
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> So this is what you are saying? |
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> |
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> |
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> [*] CPU Frequency scaling │ │ |
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> │ │ [*] Enable CPUfreq debugging │ │ |
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> │ │ <*> CPU frequency translation statistics │ │ |
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> │ │ [ ] CPU frequency translation statistics details │ │ |
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> │ │ Default CPUFreq governor (performance) ---> │ │ |
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> │ │ -*- 'performance' governor │ │ |
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> │ │ < > 'powersave' governor │ │ |
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> │ │ < > 'userspace' governor for userspace frequency scaling│ │ |
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> │ │ <*> 'ondemand' cpufreq policy governor │ │ |
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> │ │ < > 'conservative' cpufreq governor │ │ |
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> │ │ *** CPUFreq processor drivers *** │ │ |
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> │ │ < > Processor Clocking Control interface driver │ │ |
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> │ │ <*> ACPI Processor P-States driver │ │ |
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> │ │ < > AMD Opteron/Athlon64 PowerNow! │ │ |
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> │ │ < > Intel Enhanced SpeedStep (deprecated) │ │ |
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> │ │ < > Intel Pentium 4 clock modulation |
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Mostly. |
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The performance governor cannot be disabled (-*-) so it is always selected, |
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and the default should be set to ondemand. |
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The above is for personal workstations, laptops etc. For servers requiring |
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decent throughput and where power and cooling is not an issue, one would use a |
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different approach of course. |
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|
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-- |
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alan dot mckinnon at gmail dot com |
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