BlobBuilder Leaks memory in CreateBlobAssetReference

When executing the following code I get en error in editor which states there was a memory leak.

Code (CSharp):

1.             using (BlobBuilder builder = new BlobBuilder(Allocator.Persistent))
2.  
3.             {
4.  
5.                 ref BlobArray<float> cachedData = ref builder.ConstructRoot<BlobArray<float>>();
6.  
7.                 BlobBuilderArray<float> cachedValues = builder.Allocate(AmountSamples, ref cachedData);
8.  
9.                 for (int i = 0; i < AmountSamples; i++)
10.  
11.                 {
12.  
13.                     cachedValues[i] = realCurve.Evaluate((float) i / AmountSamples);
14.  
15.                 }
16.  
17.                 _cachedAnimData = builder.CreateBlobAssetReference<BlobArray<float>>(Allocator.Persistent);
18.  
19.             }

I looked into the CreateBlobAssetReference code and found that the native array "offsets" never got disposed. I changed the code so it disposes it nicely. This fixes the memory leaks.

What I find strange is that this is mentioned nowhere on the forum even though people have asked questions with BlobBuilder code in it.
Am I doing something wrong?

Extra question: Wether i release the _cachedAnimData at the end of the game or not doesn't change anything, but also doesn't error when i don't release. Is releasing the blobassetreference mandatory?

 

The BlobBuilder is obsolete since 2011.

https://developer.mozilla.org/en-US/docs/Web/API/BlobBuilder

https://stackoverflow.com/questions...ted-blobbuilder-with-the-new-blob-constructor

 

JavaScript BlobBuilder is nothing to do with Unity DOTS BlobBuilder.

 

Sorry, was my fault. Didn't recognized it was DOTS in new threads.

 

The fix i mentioned is still correct afaik, but for the BlobBuilder it's better to use a Temp Allocator.
If you do this, it doesn't leak memory in any case.
But the memory leak is still something that will need to be fixed in a future release.