What is "Replicator GC Job" In micro profiler?

Help and Feedback Scripting Support
#1

You can write your topic however you want, but you need to answer these questions:

  1. What do you want to achieve? Keep it simple and clear!
    I want to figure out what “Replicator GC Job” is.

  2. What is the issue? Include screenshots / videos if possible!
    Replicator GC Job is what popped up in microprofiler. I was debugging on mobile since my players have been dealing with a crazy FPS spike, mainly mobile players, and when it would happen, “Replicator GC Job” would basically spike up like crazy.

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As you can see, its obvious that it is that when the spikes do occur, I just have no idea what Replicator GC Job is.

  1. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    Yes I tried to research what Replicator GC Job is, but I could not find any documentation about it, and I genuinely didn’t know where to post this, so I just posted it in scripting help.

I know for sure its probably a rendering thing, as on my own PC (is pretty high end) I get 0 spikes in game, but its mainly a problem for my mobile player base, and I barely just now did micro profile tests on mobile. If anyone knows exactly what Replicator GC Job is indicating, that’ll be great, as I would like to know what exactly it is.

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#2

It’s something related to garbage collection. I doubt it’s related to rendering - if you had GC running every frame, your game would be absolutley unplayable.

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#3

GC usually is garage collector. The gc frees memory for data structures that are no longer in use.

If you are creating a lot of instances or tables every frame, maybe that could be something to look out for.

But in general the garbage collector is usually not a problem.

It is typically optimized a lot in languages such as javascript, java and luau.

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#4

When it does occur within microprofiler that’s when the game starts to have a big spike for a few seconds.

It never occurs on PC, just mobile. Only reason I woulda thought rendering, is due to the FPS spikes when it does occur.

Ill keep looking. Thank you.

#5

The game is definitely somewhat playable if mobile players are still playing, but they definitely do not have a good time thats for sure,

as the “spike” happens pretty common and consistent, and when it does happen, its always “Replicator GC Job”.

However, I do not experience any lag when I play on my PC, and ive asked my community, and its usually mobile players that are complaining about it lol.

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#6

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