Hello everyone.
I recently noticed that every game or demo or blank project that I package with either UE4.2.1 and 4.3.1, has a small but noticeable hitch in the framerate after 4 seconds from running the game. The rest of the time it runs fine.
I used stat dumphitches and the profiler tool, but all I see is some 150~ms Wait for Event. I don’t know how to identify the issue.
This is the dumphitches log:
[2014.08.08-17.55.43:557][295]LogStats: ------------------Thread Hitch, Frame 294 156.3ms ---------------
[2014.08.08-17.55.43:557][295]LogStats: ------------------ Game Thread 156.29ms
[2014.08.08-17.55.43:557][295]LogStats: 1.15ms ( 4) - Thread_1a08_0 - GameThread - STATCAT_Advanced
[2014.08.08-17.55.43:557][295]LogStats: 1.15ms ( 2) - FrameTime - STAT_FrameTime - STATCAT_Advanced
[2014.08.08-17.55.43:557][295]LogStats: 1.01ms ( 1) - GameEngine Tick - STAT_GameEngineTick - STATCAT_Advanced
[2014.08.08-17.55.43:557][295]LogStats: 1.01ms ( 6) - OtherChildren
[2014.08.08-17.55.43:557][295]LogStats: 0.14ms ( 8) - OtherChildren
[2014.08.08-17.55.43:557][295]LogStats: 0.01ms ( 2) - OtherChildren
[2014.08.08-17.55.43:557][295]LogStats: ------------------ Render Thread (//STATGROUP_Threads//RenderThread///Thread_1be4_0///////STATCAT_Advanced////) 156.33ms
[2014.08.08-17.55.43:557][295]LogStats: 156.23ms ( 91) - Thread_1be4_0 - RenderThread - STATCAT_Advanced
[2014.08.08-17.55.43:557][295]LogStats: 154.65ms ( 33) - CPU Stall - Wait For Event - STAT_EventWait - STATCAT_Advanced
[2014.08.08-17.55.43:557][295]LogStats: 1.58ms ( 58) - OtherChildren
I’m not sure if this has always happend to me. Any clue?
Greetings!