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Re: cpufrequtils init script in rcS.d



* Mattia Dongili 

| On Sat, Jul 16, 2005 at 12:39:03AM +0200, Bernd Eckenfels wrote:
| > In article <20050715102817.GA7678@inferi.kami.home> you wrote:
| > > Sorry. The main idea is making power management more effective, that's
| > > why earlier is better here.
| > 
| > I dont see why this is the case. in the bootup phase the  system is loaded
| > anyway, no need to throttle it.
| 
| Well, I can actually imagine that most of the time at bootup is spent
| waiting for I/O to complete, HW probes and so on, nothing that CPU bound
| actually (AFAICT).

If you take a look at
http://www.planetarytramp.net/bootchart/bootchart-20041210-1934.png,
you will see that it actually is CPU-bound in some places and
I/O-bound in other.  S20 runs after about twenty seconds.  I really
don't think having your CPU run at full speed for twenty seconds is
going to matter much for your battery life.

-- 
Tollef Fog Heen                                                        ,''`.
UNIX is user friendly, it's just picky about who its friends are      : :' :
                                                                      `. `' 
                                                                        `-  



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