-echo -coreprof turn on profiling API
-echo -coreprof-checkoverflow ONLY use for debugging event overflow
+echo -coreprof, turn on profiling API
+echo -coreprof-eventwords NUM, space in words/thread for coreprof events
+echo -coreprof-checkoverflow, ONLY use for debugging event overflow
+echo -coreprof-enable EVENTNAME, only enable desired events to reduce overhead
+echo EVENTNAME can be: cpe_main, cpe_runmalloc, cpe_runfree, cpe_poolalloc, cpe_count_poolalloc, cpe_count_poolreuse, cpe_workschedgrab, cpe_taskdispatch, cpe_preparememq, cpe_taskexecute, cpe_taskretire, cpe_taskstallvar, cpe_taskstallmem