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u/Geek_Abdullah

▲ 21 r/Unity3D

I built a completely generic, allocation-free Object Pooling system. Wrote a technical breakdown and open-sourced the package for everyone.

Hey everyone,

We all know the performance tax of frequent Instantiate and Destroy calls, especially the resulting Garbage Collection spikes during heavy gameplay.

I recently published a technical deep dive titled "Advanced Pooling System". In the article, I break down how to properly decouple memory management from core gameplay logic by combining the Factory Pattern and Type Abstraction on top of the native UnityEngine.Pool API.

Theory is great but plug-and-play is better. I have packaged this exact architecture into a free, open-source tool that you can drop directly into your projects via the Unity Package Manager.

Key Technical Specs:

  • Eliminates GC Spikes: Pre-warms object memory to prevent frequent Instantiate and Destroy overhead during intensive gameplay loops.
  • Fully Generic Architecture: Utilizes Dictionary<Type, object> to manage all prefab types (projectiles, enemies, UI) through a single, centralized manager. You no longer need to write separate pooling scripts for different objects.
  • Clean API: Strictly separates the instantiation logic from the pooling lifecycle.

You can grab the source code, documentation, and UPM installation instructions here: https://github.com/Abdullah165/com.abdullah.objectpool.git

I would appreciate any feedback. Let me know if you end up using it in your projects!

Edit / V1.1 Roadmap (Based on Community Feedback): Thank you for the excellent architectural reviews in the comments! To clarify a few technical points and outline the next update:

  • Semantics: To be completely precise regarding the title, this system provides allocation-free runtime spawning. The initial pool population during setup naturally requires memory allocation.
  • Upcoming V1.1 (Variant Pooling): Currently, using typeof(T) for the dictionary key restricts the pool to a 1:1 script-to-prefab ratio. Based on your feedback, I am actively preparing V1.1. This update will shift the dictionary to use GetInstanceID() rather than Types. This will fully support infinite prefab variations (e.g., multiple different prefabs sharing the same Bullet script) and further optimize dictionary lookup speeds in the hot path.
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u/Geek_Abdullah — 14 hours ago
▲ 32 r/Unity3D

Stop using frequent Instantiate/Destroy! A quick guide on Unity's built-in Generic Object Pooling.

Hey everyone 👋.

Frequent instantiation and destruction are a massive cause of garbage collection lag spikes. I just wrote a quick guide on how to easily fix this using Unity's built-in UnityEngine.Pool namespace instead of writing a custom manager from scratch.

You can read the post here: Generic Object Pooling

u/Geek_Abdullah — 6 days ago