[Bug 214695] [NEW] wrong percentage with frequency scaling

marwal marwal at screentan.org
Wed Apr 9 18:34:18 BST 2008


Public bug reported:

In system monitor under the tab Processes I can see no process is using more than 10% CPU.
When I select Resources I see CPU1 at 12% and CPU2 at about 40-50%.

If I set the frequency scaling applet to not limit CPU usage and run at
3,20 GHz instead of 400 MHz the percentage in both tabs are compatible.

So, Resources calculates percentage based on what speed my CPU is capped
to but Processes always use the value my processor is capable of.

(Using Gnome)

** Affects: hardy-backports
     Importance: Undecided
         Status: New

** Description changed:

- I system monitor under the tab Processes I can se no process is using more than 10% CPU.
+ In system monitor under the tab Processes I can se no process is using more than 10% CPU.
  When I select Resources I see CPU1 at 12% and CPU at about 40-50%.
  
  If I set the frequency scaling applet to not limit CPU usage and run at
  3,20 GHz instead of 400 MHz the percentage in both tabs are compatible.
  
  So, Resources calculates percentage based on what speed my CPU is capped
  to but Processes always use the value my processor is capable of.

** Description changed:

- In system monitor under the tab Processes I can se no process is using more than 10% CPU.
+ In system monitor under the tab Processes I can see no process is using more than 10% CPU.
  When I select Resources I see CPU1 at 12% and CPU at about 40-50%.
  
  If I set the frequency scaling applet to not limit CPU usage and run at
  3,20 GHz instead of 400 MHz the percentage in both tabs are compatible.
  
  So, Resources calculates percentage based on what speed my CPU is capped
  to but Processes always use the value my processor is capable of.
+ 
+ (Using Gnome)

** Description changed:

  In system monitor under the tab Processes I can see no process is using more than 10% CPU.
- When I select Resources I see CPU1 at 12% and CPU at about 40-50%.
+ When I select Resources I see CPU1 at 12% and CPU2 at about 40-50%.
  
  If I set the frequency scaling applet to not limit CPU usage and run at
  3,20 GHz instead of 400 MHz the percentage in both tabs are compatible.
  
  So, Resources calculates percentage based on what speed my CPU is capped
  to but Processes always use the value my processor is capable of.
  
  (Using Gnome)

-- 
wrong percentage with frequency scaling
https://bugs.launchpad.net/bugs/214695
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