Status: Resolved (View Workflow)
Environment:Ubuntu 12.04, Oracle Java 7
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)
When a slave is running a build in a multijob plugin, the monitoring thread on the master eats up 100% of a CPU core.
This scales linearly-- so when I have 4 parallel jobs running, jenkins master is using 400% cpu.
Attaching screen cap of profiler output, as well as YourKit profiler snapshot.