[JENKINS-19346] 100% on one CPU

We're running Jenkins on an Ubuntu-12.10 virtual machine, with two quad-core CPUs and 16GB RAM.

This instance has 66 slaves, and around 80 jobs.
Our instance is pretty much on 100% on one CPU, and the thread count dump keeps going up.

Attaching the graphs from the monitoring plug-in, and a thread dump
Any help on debugging this would be appreciated

duplicates

JENKINS-14362 100% CPU load during org.kohsuke.stapler.compression.CompressionFilter.reportException

is related to

JENKINS-12235 FATAL, Unable to delete script file, IOException2, remote file operation failed, unexpected termination of channel

Guy Rozendorn created issue - 2013-08-25 07:16

Guy Rozendorn made changes - 2013-08-25 07:19

Link

New: This issue is related to ~~JENKINS-12235~~ [ ~~JENKINS-12235~~ ]

Guy Rozendorn made changes - 2013-08-27 18:23

Attachment		New: cpu (1).png [ 24266 ]
Attachment		New: threadCount (1).png [ 24267 ]

Guy Rozendorn made changes - 2013-08-31 07:58

Link

New: This issue duplicates ~~JENKINS-14362~~ [ ~~JENKINS-14362~~ ]

Oleg Nenashev made changes - 2014-05-10 11:42

Resolution		New: Duplicate [ 3 ]
Status	Original: Open [ 1 ]	New: Resolved [ 5 ]

R. Tyler Croy made changes - 2016-07-25 23:55

Workflow

Original: JNJira [ 150794 ]

New: JNJira + In-Review [ 193673 ]

Jenkins