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Mobile/Powersaving/Wakeups/Debugging: Difference between revisions
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Mobile/Powersaving/Wakeups/Debugging (view source)
Revision as of 16:42, 18 October 2010
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* Slightly underreports when compared to powertop. The reason is that each call to a wakeup-related function (like NotifyCondVar) can potentially lead to more than 1 wakeup. In other words, powertop measures absolute wakeups, the tool measures 'logical' wakeups. The two are proportional, so lowering one will lower the other. The ratio is something like 1:1.5. | * Slightly underreports when compared to powertop. The reason is that each call to a wakeup-related function (like NotifyCondVar) can potentially lead to more than 1 wakeup. In other words, powertop measures absolute wakeups, the tool measures 'logical' wakeups. The two are proportional, so lowering one will lower the other. The ratio is something like 1:1.5. | ||
=== Old Approaches to Finding Wakeups === | === Old Approaches to Finding Wakeups === | ||