Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 19 Apr 2005 23:09:58 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH] Updated: Dynamic Tick version 050408-1 - C-state measures |
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Hi!
> The machine is a Pentium M 2.00 GHz, supporting C0-C4 processor power states. > The machine run at 2.00 GHz all the time. .. > _passing bm_history=0xFFFFFFFF (default) to processor module:_ > > Average current the last 470 seconds: *1986mA* (also measured better > values ~1800, does battery level play a role?!?)
Probably yes. If voltage changes, 2000mA means different ammount of power.
> (cmp. ftp://ftp.suse.com/pub/people/trenn/dyn_tick_c_states/measures_C4_machine/1000_HZ_bm_history_FFFFFFFF) > > > _passing bm_history=0xFF to processor module:_ > > Average current the last 190 seconds: *1757mA* > (cmp. ftp://ftp.suse.com/pub/people/trenn/dyn_tick_c_states/measures_C4_machine/1000_HZ_bm_history_FF) > (Usage count could be bogus, as some invokations could not succeed > if bm has currently been active).
Ok.
> idle_ms == 100, bm_promote_bs == 30 > Average current the last 80 seconds: *1466mA* > (cmp. > ftp://ftp.suse.com/pub/people/trenn/dyn_tick_c_states/measures_C4_machine/tony_dyn_tick_processor_idle_100_bm_30)
Very nice indeed. That seems like ~5W saved, right? That might give you one more hour of battery life.... Pavel
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