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167 Posts

11-12-2008

Italy

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ubuntu 9.04 high cpu

2009-06-07, 15:05 PM

Hi. I have installed ubuntu 9.04 on my thinkpad z60m. Unfortunately, the cpu is always over 50% (often at 66%) with only firefix open and without compiz enabled, but doing nothing. Why? With ubuntu 8.10 the cpu was at 16% with compiz.

 

Thanks,

 

                                                                                        davide

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11 Posts

03-30-2009

Austria

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Re: ubuntu 9.04 high cpu

2009-06-08, 9:36 AM

might be a bug in a program, best open a terminal window and run 'top' to see which processs is using the cpu all the time.

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167 Posts

11-12-2008

Italy

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Re: ubuntu 9.04 high cpu

2009-06-08, 10:12 AM
It is not a unique process, but many: firefox (open, but not used), xorg, beagled, beagle-helper, compiz-real (I don't use compiz), etc.
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59 Posts

10-23-2008

Canada

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Re: ubuntu 9.04 high cpu

2009-06-09, 6:02 AM

Here are some resources for you to brief over, perhaps they will help:

 

https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/294972

https://wiki.ubuntu.com/X/Troubleshooting/HighCPU

 

J

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227 Posts

09-12-2008

Atlanta, GA USA

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Re: ubuntu 9.04 high cpu

2009-06-17, 3:47 AM

Check to see if your cpu is underclocking itself (Intel speedstep and whatnot).  50% of 800MHz when u have a 2.26GHz (my case) isn't as bad as it looks (1/3 as bad in my case).  If you're doing something like watching a video, the cpu powers down once the work is done as much as it can.  this may include frequency throttling, which would make your cpu appear to be more utilized in top, but in actuality it isn't.

 

you can do this by adding the cpu frequency applet to the gnome panel, or" cat /proc/cpuinfo "

Lenovo SL300 Owner
earning an MSECE at GATech, with undergrad in BME.
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