godot: Profiler missing most of my functions.

Godot version: 3.2.2

OS/device including version: Windows 10 Version 1903 Build 18362.900

Issue description: The profiler fails to detect a large portion of my functions and shows a suspiciously low Script Function time. Using Measure: Frame Time (sec) and Time: Inclusive.

Here’s a screenshot of the profiler on one of the spikes I’m investigating:

It states that the frame takes 34ms in Idle time, but the Script Function total is only 0.19ms!

Further more, the time for Script Function seemingly drops when the load spike occurs. (Pink: Idle, Yellow: Script)

The spike occurs at the start of a turn in my game. It’s spread out since each enemy character’s turn takes at least one frame, ends its turn and then moves on to next until its the players turn. All of this is triggered by signals and some use of yield(get_tree(), "idle_frame")

I’ve checked and doubled checked, by using OS.get_ticks_usec() and Engine.get_idle_frames(), that one of the missing functions actually runs during these frames and is a time hog, but it won’t show up in the profiler (and I double checked the neighboring frames too)!

In fact most of the functions that I’d expect to show in the profiler for that frame are missing.

I managed to optimize the function, so I’m convinced its my own code and not any server or file loading that occurs during these frames.

I’ve tried twiddling the Max Functions setting, but no change. Made a grep for func definitions and only got ~750, so it seems hardly an issue with the default setting of 16k, but I’ve tried 32k and 64k to make sure.

The drop in Script Function time as the load increases suggests to me that there’s some silent overflow besides the Max Function setting.

Steps to reproduce: Unfortunately I’ve failed to pinpoint what causes it. Hope this report is informative enough anyway! I’ll make another attempt at reproducing it at a small scale.

Minimal reproduction project: