Absurd Game Lag

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#1

I’m making a game using various open-source libraries such as PartCache to pool parts, but when I am using a skill I experience incredible framedrops for brief periods of time. I was just wondering if anyone who is experienced with the microprofiler could help me identify details about what could be causing this through the profiler.

The profile is microprofile-20230914-181505.html (5.5 MB).

#2

Seems like it is caused by updateInvalidatedFastClusters

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(This is one frame, updateInvalidatedFastClusters takes 29ms out of like 37)

I don’t really know what that is, seems like a roblox thing for characters, there’s this bug report that talks about it

Apparently, parts parented to the character causes this?

#3

(From that post)

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Edit: I read more of the post and this seems to be quite a big issue for many games. Staff members state that it has a 4ms limit per frame but apparently that is not the case, and even things like zooming in (character goes transparent) can cause some lag spikes

#4

Thanks! Unfortunately, I don’t think there are any extra parts parented to the player, but I’ll check it out.

#5

It seems like mostly anything that modifies the character causes that code to trigger, not just parts
Though I do not know much about that issue, I only read the post I linked above