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Frequency, heat, and idleness

Frequency, heat, and idleness

Posted Apr 18, 2020 9:35 UTC (Sat) by oak (guest, #2786)
In reply to: Frequency, heat, and idleness by anton
Parent article: Frequency-invariant utilization tracking for x86

Suspend vs lowest freq power usage difference can be significantly larger than between lowest & highest freq. But Suspend transition times are longer, especially with old (x86) processors and they didn’t have as many suspend states.

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Frequency, heat, and idleness

Posted Apr 21, 2020 5:18 UTC (Tue) by flussence (guest, #85566) [Link]

There are a few old x86 chips where the lower C-states exist but have to be avoided entirely to avoid nasty bugs, which doesn't help matters.


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