Sometimes jetty loads our server for 100% - every thread for 100% of 1 core.
We have jetty 9 and JDK 1.7 (at Jetty 6 and JDK 1.7 - this doesn't appears).
Jetty now running on default settings, previously we run it with
JAVA_OPTIONS="-Xms4096m -Xmx4096m -server -XX:+UseConcMarkSweepGC"
I maked the dump of main thread (with jstack -F pid), but this gives me nothing (i just don't understand). DUMP
Is there some way to determine what process/project loading the CPU?