On Tue, Oct 04, 2005 at 07:24:29PM +0100, Stephen Boddy wrote: > Just a quick note that, depending on your system and set-up, the > transcoding may take longer than you expect. I have an Athlon 64, > and the cool-n-quiet means that when idle it roughly halves the > processor speed. Niced processes (i.e. the transcoding) do not cause > the processor to ramp up to full speed. I found this out when I > niced the MythTV compile and wondered why it was taking so long.
If you are using cpufreq:
http://lwn.net/Articles/106900/?format=printable
The default value is "0". To change it:
# echo 1 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice
This means that the CPU will run at full throttle even for "nice"d
processes.
--Rob
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