Tips on isolating a very short, recurrent, major drop in FPS?

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- corlenbelspar
- - Joined 14 Aug, 2013
  - 149 topics • 445 posts
- 1
- 12 Dec, 2024
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My frame rate dips to 50 and I can see a very short, seemingly random jank of the game having slow down. The problem is, it happens much faster than the debugger can update, so I can't really figure it out by using that.
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- DarkViGaCi
- - Joined 29 Mar, 2017
  - 13 topics • 56 posts
- 1
- 12 Dec, 2024
- Quote
You might have "heavy ticks." For example, you run a function that processing longer than 0.016 second. This can cause FPS drops even with low CPUUtilisation.

Another case is a "heavy frame." This happens when there are too many objects on the screen that overlap, and your video card can't render the frame in 0.016 of a second.
- dop2000
- - Joined 26 May, 2016
  - 140 topics • 12,759 posts
- 1
- 12 Dec, 2024
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Make a copy of the project and start disabling big blocks of code, testing the performance every time. Then narrow it down, until you find which event is causing the issue.