-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/30/2011 06:29 PM, Kay Sievers wrote:
On Tue, 2011-05-31 at 00:13 +0200, Carlos E. R. wrote:
On 2011-05-30 20:49, Kay Sievers wrote:
On Mon, 2011-05-30 at 20:33 +0200, Carlos E. R. wrote:
Whatever, but we were told to start that service to make gnome happy.
It's to make your kernel happy, that the CPU can safe power if it has nothing to do. It has nothing to do with the desktop stuff.
If that system service is not loaded, my laptop cpu is stuck at the highest speed. And I knew that because gnome told me so, not the kernel.
Ah, good that it tells. But the desktop does not need it.
Ideally we would just compile them into the kernel, as only the kernel knows which of the drivers should actually be used, and not depend on the loading order userspace provides.
Yes and no. The user can decide, for example, to force low speed to maximize battery. Or the contrary.
Low speed does in no way mean less energy on modern boxes. It's a legend, and proven wrong many times.
To save energy the system needs to sleep, and when work is to do, it need to do the work as fast as possible, to be able to sleep again as much as possible. Only sleeping really saves energy not doing work slowly.
All that is the kernel's job with the on-demand governor. The powersave governor usually does consume more energy, and is pretty useless today.
FWIW, the cpufreq script loads powernow-k8 on my system. Regardless of your thoughts on power saving, it definitely steps down my processor (Phenom II X6) and as a result my fan is much, much quieter. - -Jeff - -- Jeff Mahoney SuSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org/ iEYEARECAAYFAk3kIvAACgkQLPWxlyuTD7JGbQCfW2tJguK+y1K6XdoSStpsSq7m 6bIAoKQcDaBlZiDWPEB2lkaDfDMkwAQS =Siic -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org