Mobile/Powersaving/Wakeups/Debugging: Difference between revisions

Mobile/Powersaving/Wakeups/Debugging (view source)

457 bytes removed , 28 May 2010

213

edits

@@ Line 1: / Line 1: @@
-= Overview =
-'Wakeups' are instances where a thread enters activity. Each such wakeup stops the CPU from sleeping. Several short wakeups are much worse than a single long wakeup, because each wakeup will prevent sleeping for a short time afterwards, and sleeping can save a lot of power (see powertop docs). So avoiding wakeups is important, and if they are unavoidable then 'clumping' them together is preferable to scattering them at semi-random times.
 == Finding Wakeups ==