High CPU usage when JRebel is on
问题 When turning on JRebel for my JSF project, CPU usage gets too high on each requests & drops down when request has been served. I did looked though the profiler but it was not caused due to my project classes itself. But I could even figure out the culprit looking at the profiling results. Here are the profiling results : Interestingly the problem disappears when I either disable JRebel, or remove a 3rd party URL rewrite library ( com.ocpsoft.pretty.faces.* ). But then I created a new fresh