Bug 149796

Summary: Knodes is probably regularly polling causing an heavy power consumption.
Product: [Unmaintained] knode Reporter: Cédric Brun <cedric.brun>
Component: generalAssignee: kdepim bugs <pim-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Cédric Brun 2007-09-12 09:12:05 UTC 
Version:           0.10.4 (using KDE 3.5.7 "release 58" , openSUSE 10.3)
Compiler:          Target: i586-suse-linux
OS:                Linux (i686) release 2.6.22.5-10-default

Using "powertop" you'll see that Knode is heavily consuming power waking up the processor more than 100 times a second.  On my laptop it is the most important cause of energy loss and it represent half of the CPU wakes.

Powertop give the following information :
knode : schedule_timeout (process_timeout)

I've got a dozen of news server setup in my instance.

Fixing this would result as a far longer battery life when using KNode,, right now I have no choice than avoiding using KNode when I'm on battery.
Comment 1 Rolf Eike Beer 2007-09-13 18:19:54 UTC 

*** This bug has been marked as a duplicate of 147944 ***