Peter Hüwe wrote: > Hi, > >> If you managed to get improvements yourself, please let us know on the > mailing list. > > So here are my results: > > On my old laptop (celeron m 1,3Ghz) I played around with the different kernel > options and to some extend with different versions. > > I started with a 2.6.16 kernel - powertop showed me that > - it receives 1000 wakeups (is that related to the 1000hz option? ) > - it uses 15,4 Watts (with lowest background-brightness of the display) > - and the cpu is stuck in C0 / C1 > - 163 mhz while idle* (100%) > (and of course no timer stats available) > > (*idle = fluxbox + eterm (running powertop)) > > using powertop hints and upgrading the kernel to a 2.6.24-rc2 got me to > following: > - 40 wakeups (mostly due to extra_timer_interrupt (29)) > - 11,7 watts longterm (with lowest background-brightness) > - cpu reaches now c3 (95%) > - 163 mhz while idle* (100%) > - HPET doesn't work :/ > > So almost 25% saved power! > (Unfortunately it doesn't really improve my battery runtime - as the battery > somehow is broken (10 minutes ! when charged full)) > > ---> To put it in a nutshell - upgrading the kernel and configuring it with > help of powertop + wise choosing of application saves a lot of power. > > > ---> Do you think there is still room for improvement? > ---> I have an intel ICH4 Chipset -> Hpet possible? try kernel command line parameter
hpet=force -G > > > > Anyways - I thanks for that great app. > > > Regards, > Peter > > _______________________________________________ > Power mailing list > [email protected] > http://www.bughost.org/mailman/listinfo/power _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
