Add tracepoint to unpark

Signed-off-by: tajila <atobia@ca.ibm.com>

Author: tajila

thread/common/omrthread.c

@@ -3345,17 +3345,21 @@ omrthread_park(int64_t millis, intptr_t nanos)
 void
 omrthread_unpark(omrthread_t thread)
 {
+	uintptr_t slowPath = 0;
 	ASSERT(thread);
 
 	THREAD_LOCK(thread, CALLER_UNPARK_THREAD);
 
 	thread->flags |= J9THREAD_FLAG_UNPARKED;
 
 	if (thread->flags & J9THREAD_FLAG_PARKED) {
+		slowPath = 1;
 		NOTIFY_WRAPPER(thread);
 	}
 
 	THREAD_UNLOCK(thread);
+
+	Trc_THR_Unpark(slowPath);
 }
 
 

thread/j9thr.tdf

@@ -73,3 +73,5 @@ TraceException=Trc_THR_omrthread_get_cpu_time_ex_clock_gettime_failed Overhead=1
 TraceException=Trc_THR_fixupThreadAccounting_omrthread_get_cpu_time_ex_error Overhead=1 Level=1 NoEnv Test Template="omrthread_get_cpu_time_ex returned error=%zd for thread=0x%p"
 
 TraceEvent=Trc_THR_EnableRawMonitorSpin_CustomSpinOption Overhead=1 Level=3 NoEnv Test Template="(ENABLE_RAW_MONITOR_SPIN) Using custom spin counts: %s, monitor: %p, threeTierSpinCount1: %zu, threeTierSpinCount2: %zu, threeTierSpinCount3: %zu, adaptSpin: %zu"
+
+TraceEvent=Trc_THR_Unpark Overhead=1 Level=5 NoEnv Test Template="Unpark slow path taken=%zu"