On 05/08/10 09:31, Pierre Massat wrote:
How do i check this? I have a core 2 duo "inside"...
To check:
$ for CPU in 0 1 ; do cat /sys/devices/system/cpu/cpu${CPU}/cpufreq/scaling_governor ; done
To change:
$ sudo su -
# for CPU in 0 1 ; do echo performance
/sys/devices/system/cpu/cpu${CPU}/cpufreq/scaling_governor ; done
# for CPU in 0 1 ; do echo ondemand
/sys/devices/system/cpu/cpu${CPU}/cpufreq/scaling_governor ; done
(set to 'performance' when you need it, set back to 'ondemand' when you need to save power/battery/etc)
(Tested on Ubuntu-flavoured Linux)
Another thing to be aware of is thermal throttling - if it gets really too hot then it may slow down to save from melting, in which case the system logs will tell you (try dmesg | tail, etc). Solution here is cleaning fans/heatsinks, usually.
Pierre
2010/8/5 cyrille henry <ch@chnry.net mailto:ch@chnry.net>
Hello, are you sure that your CPU frequency did not change? i sometime have this problem : the CPU slowdown to save some power, introducing audio problem. i simply put it full speed every-time i use CPU intensive applications. i don't know how to do this on fedora, but it should be possible. c