powertop reports that ppmd is one top offenders for interrupting the CPU

[rob rhoads]

When running powertop in the terminal window on a crown beach platform, powertop reports that ppmd is the 2nd most offending process for interrupting the CPU with an average of 10 to 11 interruptions per second. The expectation is that this should be closer to 1 or less than 1.

[Zhao Fan (fan-zhao)]

Mohamed, have you been aware of the issue on PC or Samsung?

[mabbas (mohamed-abbas)]

there is no timer in ppmd daemon and ppmd only response to user call through dbus which can not cause this, ppmd also listens to hal notification, whict might causing this, I will do more invistigation

[mabbas (mohamed-abbas)]

I can not reproduces this bug in my test machine. can you apply this patch then email the /var/log/ppmd after you run powertop and it shows ppmd is one of top offender.
This patch will log any events from hal which it is the only thread od execution beside user comand.

[Zhao Fan (fan-zhao)]

I can not reproduce this bug on crownbeach either. So I will verify this bug first. Rob, if you find this problem again, you could reopen this bug.