Bug#421879: cpufreq_ondemand: cpufreq_ondemand responds too slowly

[Mattia Dongili <malattia@linux.it>]

On Wed, May 02, 2007 at 09:36:27AM +0100, Greg Kochanski wrote:
...
> Suggestions:
> 1)   allow sampling_rate_min to be set to smaller values, like 0.1 second.
>      The default sampling_rate_min should probably be 0.25 seconds.
>      If that were the case, the CPU would power up before
>       a window drag (or similar motion) was finished, and the response would
>       probably seem acceptably snappy.

actually the sampling rate is dependent on the transition latency for
the processor.

> 2) Make the default scaling_min_freq be somewhat larger, perhaps 670 MHz or
>    20% of the max clock speed.    This will (of course) reduce laptop life,
>    but I suspect that it won't make a noticeable change.

you can already do that by setting /etc/default/cpufrequtils from the
cpufrequtils package.

cheers
-- 
mattia
:wq!