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fix: Adds Gen2 callback for each STArrayPool (#971)

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Adds. Gen2Callback for STArrayPool so it can purge the internal array stacks properly. This only happens if significant timed has passed, 2 Gen 2's have been run, and memory pressure exceeds a threshold.
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Kamron Batman 2022-03-26 13:57:42 -07:00 • committed by GitHub
parent 474427041f
commit e9f986f55b
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2 changed files with 83 additions and 0 deletions
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8
Projects/Server/Buffers/STArrayPool.cs
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@ -6,6 +6,7 @@ using System.Buffers;
using System.Diagnostics;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Threading;
namespace Server.Buffers;
@ -20,6 +21,7 @@ public class STArrayPool<T> : ArrayPool<T>
public static STArrayPool<T> Shared => _shared;
private int _trimCallbackCreated;
private static STArray[] _cacheBuckets;
private STArrayStack[] _buckets = new STArrayStack[BucketCount];
@ -172,6 +174,12 @@ public class STArrayPool<T> : ArrayPool<T>
{
Debug.Assert(_cacheBuckets is null, $"Non-null {nameof(_cacheBuckets)}");
var buckets = new STArray[BucketCount];
if (Interlocked.Exchange(ref _trimCallbackCreated, 1) == 0)
{
Gen2GcCallback.Register(o => ((STArrayPool<T>)o).Trim(), this);
}
return _cacheBuckets = buckets;
}