Comment 9 for bug 1579278
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| Haw Loeung (hloeung) wrote Re: Consider changing default CPU frequency scaling governor back to "performance" (Ubuntu Server) | #9 |
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(Get the code!)
In that same Google+ post, Arjan van de Ven wrote:
"""
Now, about ondemand and cpufreq.
The ondemand algorithm was designed roughly 10 years ago, for CPUs from that era. If you look at what ondemand really ends up doing, is managing the frequency during idle periods, and 10 years ago, that mattered for power.
Today (well, last 5 years), the frequency in idle is zero, and even the voltage is now zero (NHM and later).... so what frequency the OS picks during the idle period is completely irrelevant. This, and other things, make ondemand not a good algorithm for current Intel processors.
...
The new code in the 3.9 kernel, under, CONFIG_
"""