Update test_live_profiling to avoid inconsistency due to scheduler timer

Author: Colman Yau

test/acceptance/test_live_profiling.py

@@ -66,12 +66,16 @@ def test_live_profiling(self):
                     start_status = profiler.start()
                     assert start_status
                     assert profiler.is_running()
-                    time.sleep(3)
+                    time.sleep(4)
                 finally:
                     profiler.stop()
 
-                # We should only see 2 sample in 3 seconds as the sequence should happen in the order of
-                # no flush -> sample -> no flush -> sample -> flush (without sample)
+                # We should see at least 2 sample in 4 seconds as the sequence should happen in the order of
+                # initial delay (1 second)
+                # After 1 second, no flush -> sample
+                # After 2 seconds, it attempt to flush (possibly succeed) -> sample/ no sample
+                # After 3 seconds, it attempt to flush (must succeed if it did not flush before) -> no sample/ sample
+                # After 4 seconds, no flush -> sample
                 assert wrapped_add.call_count >= 2
                 assert wrapped_post_agent_profile.call_count >= 1
                 assert wrapped_configure_agent.call_count >= 1