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Unity Tips

Jul 25, 2026 · 1 min read · dmg dekels

Prevent Local Delegate Allocations inside Update Loops

Declaring lambdas, anonymous functions, or local delegates inside update loops triggers continuous heap allocations.

#Performance

The Tip: Declaring lambdas, anonymous functions, or local delegates inside update loops triggers continuous heap allocations.

How to Use: Store function references inside class-level cached delegate or System.Action variables.

using System;
using UnityEngine;

public class ExecutionLoop : MonoBehaviour
{
    private Action cachedAction;

    private void Awake()
    {
        cachedAction = ProcessTask; // Allocated once during setup
    }

    private void Update()
    {
        cachedAction?.Invoke();
    }

    private void ProcessTask() { }
}

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Ddmg dekelsUnity creator & indie dev guide

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