Aug
7
2018

tips // Unity3d

Faster Debug.Log

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An article by mgear Comments

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Debug.Log() slows down your editor or even hangs if it happens to run inside some long loop,
but you can make it faster by disabling stacktrace from Debug.Log()! (see image above)

Tested for-loop with 100000 iterations in editor (Unity 2018.1.6f1)
– 25000ms with stacktrace enabled
– 2200ms with stacktrace disabled

code used for measuring:

	// measure debug.log with large loop

	using UnityEngine;

	public class LogSpamTest : MonoBehaviour
	{
	void Start()
	{
	var stopwatch = new System.Diagnostics.Stopwatch();
	stopwatch.Start();

	for (int i = 0; i < 100000; i++)
	{
	Debug.Log(i);
	}

	stopwatch.Stop();
	Debug.Log("Timer: " + stopwatch.ElapsedMilliseconds);
	stopwatch.Reset();

	// with stacktrace = 25000 ms
	// without stacktrace = 2200 ms
	}
	}

view raw

LogSpamTest.cs

hosted with ❤ by GitHub

References

– https://docs.unity3d.com/Manual/Console.html

Tags: debug, debug.log, faster, log, logging, slow, stacktrace

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About the Author:

.fi

1 Comment + Add Comment

mgear 12/09/2018 at 20:52

good one also, switch to single line log messages:
https://twitter.com/FreyaHolmer/status/1039497474384244739

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