The dynamic tick patch
Posted Jun 16, 2005 9:33 UTC (Thu) by farnz
In reply to: The dynamic tick patch
Parent article: The dynamic tick patch
Also, most CPUs take a long time to switch from run to sleep; at 1kHz tick, there's a good chance that the "sleeping" CPU is actually running for a decent stretch of time. As they can switch back almost instantly, a good power saving technique is to try and maximise the time between a "go to sleep" command, and the next wakeup, which is exactly what dynamic ticks does.
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