Looking for advice on Scripting Engine Overhead – any experienced users?

[Zoe Wilson]

Hey everyone,

I’ve been looking into Scripting Engine Overhead recently and wanted to ask the community for real-world impressions.

Game Engine Main Loop Frame Time Budgeting Cache Coherency in Multicore CPUs Deterministic Physics Simulation Memory Pool Allocator JIT Compilation Overhead Garbage Collection Algorithms Interop Marshaling Cost Esport Latency Requirements Profiling Tools for Game Engines

Has anyone tested this setup or experienced something similar? Any tips would be appreciated!

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📍 Melbourne (Australia)

"1% low FPS flat as a runway before queuing high-elo ranked."

[Zack Nelson]

Hey man,

I dealt with this recently. The core issue usually comes down to:

Early game engines (mid‑1990s) employed bespoke, stack‑based scripting languages such as QuakeC and UnrealScript, which avoided garbage collection by using manual memory pools and deterministic destruction, yielding sub‑100 µs script call overhead. The adoption of Lua in the early 2000s brought flexibility and rapid iteration but introduced a stop‑the‑world mark‑sweep collector that caused noticeable hitches in titles like World of Warcraft dur

Best way forward is:
Scenario 1 – Competitive FPS (CS:GO‑style UI Scripting) The engine embeds LuaJIT for HUD animations and event handling. Each frame processes ~1,200 UI widget updates, generating ~18 KB of short‑lived allocations. With an arena allocator scoped to the UI pass, allocation latency averages 3.8 ns per object and GC pauses are confined to a 0.22 ms incremental slice occurring every 4 frames, keeping 99.9th‑percentile frame time under 1.1 ms on a 240 H

Hope this helps!

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📍 Seattle, WA (USA)

"1% low FPS flat as a runway before queuing high-elo ranked."

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