Re: [PATCH] i386 No-Idle-Hz aka Dynamic-Ticks 3

Bill Davidsen
2005-08-10T20:00:11Z

Jim MacBaine wrote:
> I just borrowed a power meter to see (or not to see) real effects of
> dyntick. The difference between static 1000 HZ and dynamic HZ is much
> less than I expected, only a very little about noise. With dyntick
> disabled at 1000 HZ my laptop needs 31,3 W. With dyntick enabled I
> get 29.8 W, the pmstats-0.2 script shows me that the system is at
> 35-45 HZ when it is idle.
>
> The power consumption difference between 250 HZ static and dyntick is
> below the noise, so maybe hardly worth all the struggle.

I think it's the other way round, we have the lower power without the
higher latency. At least as I can measure...

Bravo to all concerned to get this to the testing stage!

--
-bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me