Re: Scaling governor via sysctl?
On Thu, Jan 28, 2010 at 10:19:27PM +0100, Tilo Schwarz wrote: I use sysfs.conf: Thanks. I knew about sysctl.conf, but not sysfs.conf. I appreciate you pointing that out! -- Oh, look: rocks! -- Doctor Who, Destiny of the Daleks -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
On Fri, Jan 29, 2010 at 02:26:40PM -0800, Carl Johnson wrote: If you have the cpufrequtils package installed, then just edit /etc/defaults/cpufrequtils to specify which you want at boot. The /etc/defaults/cpufrequtils file over-rides the value (if any) in /etc/sysfs.conf, but I think it's important to know that values can be set there, too. Thanks for the help. -- Oh, look: rocks! -- Doctor Who, Destiny of the Daleks -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
On Fri, 29 Jan 2010 23:26:40 +0100, Carl Johnson ca...@peak.org wrote: Tilo Schwarz t...@tilo-schwarz.de writes: On Thu, 28 Jan 2010 05:42:13 +0100, Todd A. Jacobs nos...@codegnome.org wrote: I'd like to set my scaling governor in /etc/sysctl.conf, rather than by echoing a value to: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor However, I'm not finding a key for it via the sysctl utility. When I run: sysctl -a | fgrep -i cpu I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? I use sysfs.conf: #grep demand /etc/sysfs.conf devices/system/cpu/cpu0/cpufreq/scaling_governor = ondemand If you have the cpufrequtils package installed, then just edit /etc/defaults/cpufrequtils to specify which you want at boot. I don't have the cpufrequtils package installed. -- Regards, Tilo -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
Tilo Schwarz t...@tilo-schwarz.de writes: On Fri, 29 Jan 2010 23:26:40 +0100, Carl Johnson ca...@peak.org wrote: Tilo Schwarz t...@tilo-schwarz.de writes: On Thu, 28 Jan 2010 05:42:13 +0100, Todd A. Jacobs nos...@codegnome.org wrote: I'd like to set my scaling governor in /etc/sysctl.conf, rather than by echoing a value to: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor However, I'm not finding a key for it via the sysctl utility. When I run: sysctl -a | fgrep -i cpu I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? I use sysfs.conf: #grep demand /etc/sysfs.conf devices/system/cpu/cpu0/cpufreq/scaling_governor = ondemand If you have the cpufrequtils package installed, then just edit /etc/defaults/cpufrequtils to specify which you want at boot. I don't have the cpufrequtils package installed. The cpufrequtils package adds programs which directly set (cpufreq-set) and check (cpufreq-info) the frequency and drivers, so you don't need to use the /sys filesystem manually. -- Carl Johnsonca...@peak.org -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
Tilo Schwarz t...@tilo-schwarz.de writes: On Thu, 28 Jan 2010 05:42:13 +0100, Todd A. Jacobs nos...@codegnome.org wrote: I'd like to set my scaling governor in /etc/sysctl.conf, rather than by echoing a value to: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor However, I'm not finding a key for it via the sysctl utility. When I run: sysctl -a | fgrep -i cpu I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? I use sysfs.conf: #grep demand /etc/sysfs.conf devices/system/cpu/cpu0/cpufreq/scaling_governor = ondemand If you have the cpufrequtils package installed, then just edit /etc/defaults/cpufrequtils to specify which you want at boot. -- Carl Johnsonca...@peak.org -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
On Thu, 28 Jan 2010 05:42:13 +0100, Todd A. Jacobs nos...@codegnome.org wrote: I'd like to set my scaling governor in /etc/sysctl.conf, rather than by echoing a value to: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor However, I'm not finding a key for it via the sysctl utility. When I run: sysctl -a | fgrep -i cpu I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? I use sysfs.conf: #grep demand /etc/sysfs.conf devices/system/cpu/cpu0/cpufreq/scaling_governor = ondemand -- Regards, Tilo -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Scaling governor via sysctl?
I'd like to set my scaling governor in /etc/sysctl.conf, rather than by echoing a value to: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor However, I'm not finding a key for it via the sysctl utility. When I run: sysctl -a | fgrep -i cpu I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? -- Oh, look: rocks! -- Doctor Who, Destiny of the Daleks -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: Scaling governor via sysctl?
On Wed, Jan 27, 2010 at 08:42:13PM -0800, Todd A. Jacobs wrote: I get nothing. Why can I write to a value in sysfs that can't be accessed with sysctl? And more importantly, how am I supposed to do this at boot without sysctl.conf? Two quick answers, but a remaining question. The default governor can be set in /etc/default/cpufrequtils, and can be changed with: sudo cpufreq-set -g ondemand which probably just does the same thing as echoing to the right key in sysfs. However, I still don't understand why I can't set it with sysctl. What's up with that? -- Oh, look: rocks! -- Doctor Who, Destiny of the Daleks -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
