-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jochen Schulz <m...@well-adjusted.de> writes:
> Merciadri Luca: >> Jochen Schulz <m...@well-adjusted.de> writes: >> >>> What does >>> >>> # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor >>> >>> say after bootup? >>> >> Ondemand, the same as what appears in the applet, after boot. However, >> despite "Ondemand", even a huge CPU load does not make Debian asking >> for more CPU resources, such as 100%. > > Then have a look at > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq > > It should contain the highest frequency your processor supports. It is the case. >>> That would be the kernel's default behaviour if your >>> current governor is either ondemand or conservative. >>> >> How could I modify it? > > Modify what? -Most probably, cpufrequtils will contain all the tools > you need. It allows you to select a governor and set min/max frequency > limits, for cases where they are mis-reported by default. > >>> I suggest you use just the ondemand governor and stop caring about the >>> issue at all. You will get full CPU power when you need it and save a >>> little power when you don't. >> >> My aim is not to save power. I am running many scientific-purpose >> applications, and they need full CPU power. > > Sure, no problem. The ondemand governor is all about saving power > without sacrificing performance. If nothing's wrong with your > configuration, this is exactly what you should get by default. Something must be wrong, as CPU freq. is never modified, even with there is a huge load. > A question that comes to my mind: how do you measure the current clock > frequency? Only by looking at the Gnome applet? On one hand, by looking at the GNOME applet. On the other hand, by hearing fans, which are really noisy when I use "Performance" rather than "Ondemand". > I would take a look into > /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq, just to be > sure. It exactly gives the same values as GNOME's applet does. - -- Merciadri Luca See http://www.student.montefiore.ulg.ac.be/~merciadri/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Processed by Mailcrypt 3.5.8 <http://mailcrypt.sourceforge.net/> iEYEARECAAYFAkq0md0ACgkQM0LLzLt8MhwehwCfRK3zOCWHkMIuglzWholiZNcb FKoAoJvlVEFEG/6WwIAvMU5DJlcvE6WN =vONc -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org