[scribus] Speed and CPU

Owen rcook at pcug.org.au
Fri Jun 12 03:45:11 CEST 2009

> On Fri, 12 Jun 2009 01:06:48 +0200
> Craig Bradney <mrb at scribus.info> dijo:
>> > The more I poke around the more I think the problem is that the
>> CPU
>> > speed is being throttled back by something in Linux.
>> Your CPU speed governor is probably set to ondemand which many
>> distros
>> set by default. By the time it kicks up the processor speed (which
>> doesn't take long), your initial task in Scribus may be completed
>> having
>> run at 800+Mhz instead of 2Ghz. The bump time can make it sluggish
>> enough to affect your feeling of a GUI intensive app. I would
>> suggest
>> setting your governor to performance if you are working on a large
>> doc
>> or working for a long time. Your distro should provide an easy way
>> to
>> change it or you can set it manually:
>> cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
>> will tell you what governors are built int your kernel
>> echo ondemand >
>> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
>> will set ondemand.
>> Note those both touch cpu0.. you may need to do each one separately.
> Thanks for the suggestions. Here is what I got:
> jjj at Devil7:~$
> cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
> conservative ondemand userspace powersave performance jjj at Devil7:~$
> echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> bash: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
> Permission
> denied
> jjj at Devil7:~$ sudo echo ondemand
>> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor bash:
>> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor: Permission
>> denied
> WTH is that? Root doesn't have permission?
> The results of the first command are very interesting, though. Your
> suggestion may have led me to the source of the problem. Now if I can
> just figure out the proper command to stop it from being so
> conservative. :)

You might want to some directory listings, you will find that most
files are only readable, I don't know, but suspect there is a (hidden)
program in your system that can set these things.

Googling or Binging might give some more clues, then again might not



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