FS-6440 --resolve

src/switch_core_session.c

@@ -1827,10 +1827,17 @@ static void *SWITCH_THREAD_FUNC switch_core_session_thread_pool_manager(switch_t
 
 	while(session_manager.ready) {
 		int check = 1;
+		int ttl = 0;
 
-		switch_mutex_lock(session_manager.cond2_mutex);
-		switch_thread_cond_timedwait(session_manager.cond, session_manager.cond_mutex, sleep);
-		switch_mutex_unlock(session_manager.cond2_mutex);
+		switch_mutex_lock(session_manager.mutex);
+		ttl = switch_queue_size(session_manager.thread_queue);
+		switch_mutex_unlock(session_manager.mutex);
+
+		if (!ttl) {
+			switch_mutex_lock(session_manager.cond2_mutex);
+			switch_thread_cond_timedwait(session_manager.cond, session_manager.cond_mutex, sleep);
+			switch_mutex_unlock(session_manager.cond2_mutex);
+		}
 
 		if (switch_micro_time_now() >= next) {
 			if (session_manager.popping) {