Scheduling analysis: Also record the number of times a thread waits on a

locking primitive.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27312 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/system/scheduler_defs.h

@@ -49,6 +49,7 @@ struct scheduling_analysis_thread_wait_object {
 	thread_id								thread;
 	scheduling_analysis_wait_object*		wait_object;
 	bigtime_t								wait_time;
+	int64									waits;
 	scheduling_analysis_thread_wait_object*	next_in_list;
 };
 

src/system/kernel/scheduler.cpp

@@ -897,6 +897,7 @@ struct ThreadWaitObject : HashObject, scheduling_analysis_thread_wait_object {
 		this->thread = thread;
 		wait_object = waitObject;
 		wait_time = 0;
+		waits = 0;
 		next_in_list = NULL;
 	}
 
@@ -1467,6 +1468,7 @@ analyze_scheduling(bigtime_t from, bigtime_t until,
 				bigtime_t diffTime = entry->Time() - thread->lastTime;
 				if (thread->waitObject != NULL) {
 					thread->waitObject->wait_time += diffTime;
+					thread->waitObject->waits++;
 					thread->waitObject = NULL;
 				} else if (thread->state != UNKNOWN)
 					thread->unspecified_wait_time += diffTime;