[Mono-list] Determine what's using CPU

[Dave Curylo]

I have a process that sporadically becomes unresponsive and starts using a lot of CPU.  Before I thought this was a GC issue, and switched to sgen, but the issue is still there.  I've use gdb with "thread apply all bk" in the past, which pointed me to the GC issues, but now it appears GC isn't really the problem.  Is there some other way to see what is causing the high CPU in gdb or is my only option to start the process with the mono profiler attached?