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Bug 313707 - Hudson slave.jar consuming ~110% CPU
Summary: Hudson slave.jar consuming ~110% CPU
Status: RESOLVED WORKSFORME
Alias: None
Product: Community
Classification: Eclipse Foundation
Component: CI-Jenkins (show other bugs)
Version: unspecified   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: CI Admin Inbox CLA
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Depends on: 315643
Blocks:
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Reported: 2010-05-20 08:25 EDT by Denis Roy CLA
Modified: 2010-06-07 09:54 EDT (History)
1 user (show)

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Description Denis Roy CLA 2010-05-20 08:25:09 EDT 
It seems that slave.jar likes to consume from 100% to 125% of one CPU at all times.  For a machine with 8 cores, this means one of them is always tied up.

Is there any way of tracing what it's doing?  strace doesn't show me anything.
Comment 1 David Carver CLA 2010-05-20 09:24:53 EDT 
Could use the following to check slave status:

http://wiki.hudson-ci.org/display/HUDSON/slave-status

Also, the following issue might be of interest:

http://issues.hudson-ci.org/browse/HUDSON-4512

In addition, you can report a bug to the hudson devs at:

http://issues.hudson-ci.org/
Comment 2 David Carver CLA 2010-05-20 09:34:42 EDT 
You can also get a threadDump from build2 if you are logged into the Hudson UI.

https://build.eclipse.org/hudson/computer/build2/threadDump
Comment 3 Denis Roy CLA 2010-06-07 09:54:49 EDT 
Since starting it with jnlp this is no longer the case.