Gentoo Archives: gentoo-user

From: Volker Armin Hemmann <volkerarmin@××××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Check CPU for throttling
Date: Tue, 10 May 2011 15:25:57
Message-Id: 1963791.3lJMJJiDiX@localhost
In Reply to: Re: [gentoo-user] Check CPU for throttling by Helmut Jarausch
1 On Tuesday 10 May 2011 16:34:53 Helmut Jarausch wrote:
2 > On 05/10/2011 02:44:26 PM, Volker Armin Hemmann wrote:
3 > > On Tuesday 10 May 2011 08:27:42 Helmut Jarausch wrote:
4 > > > On 05/10/2011 02:36:33 AM, Volker Armin Hemmann wrote:
5 > > > > On Sunday 08 May 2011 12:59:57 Helmut Jarausch wrote:
6 > > > > > On 05/08/2011 11:21:06 AM, Florian Philipp wrote:
7 > > > > >
8 > > > > > sys-process/atop shows current CPU freqency
9 > > > > > I use it to check the effect of sys-power/powernowd
10 > > > >
11 > > > > why are you using powernowd?
12 > > >
13 > > > Why not? It's a daemon which reduces the CPU speed under certain
14 > > > circumstances.
15 > >
16 > > just like the kernel. Only the kernel does it better.
17 > >
18 > > > This not only saves power but it reduce the noise produced by the
19 > >
20 > > fan.
21 > >
22 > > fanspeed - if you have a pwm fan.
23 > >
24 > > Seriously, powernowd is so not needed. Just built a kernel with
25 > > ondemand cpu
26 > > governor. You are done.
27 >
28 > Hi,
29 > I've just tried that, but it doesn't work (at least, as the output of
30 > atop is concerned)
31 >
32 > dmesg shows
33 > cpuidle: using governor ladder
34 > cpuidle: using governor menu
35
36 that is a different can of worms
37 >
38 > Am I missing something?
39
40 yes:
41
42 *- 'ondemand' cpufreq policy governor