[Bug 513848] Re: [karmic] CPU load not being reported accurately

Peter Matulis peter.matulis at canonical.com
Fri Mar 12 13:56:53 UTC 2010


Here are new screenshots for Jaunty and Karmic.  Each test ran for a
good 25 minutes.  I've also added a Karmic screenshot for 'top' showing
(some of) the threads associated with the single Java process.  In
addition, I have copied my recent post (2010-03-10) to kernel-
team at lists.ubuntu.com :

--------
Can anyone tell me whether the Karmic kernel has implemented a different
way of what it considers a process (as opposed to threads)?

I have a situation where CPU load is zero on Karmic but considerably
higher in Jaunty and earlier.

The scenario is a single java process with many threads.  The system has
4 cores and only one java process should logically produce a negligible
CPU load but why was this not the case with earlier kernels?  Has
something changed in Karmic that would explain what I'm seeing?
--------

-- 
[karmic] CPU load not being reported accurately
https://bugs.launchpad.net/bugs/513848
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