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SequenceReader.cs
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SequenceReader.cs
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using BenchmarkDotNet.Attributes;
using MicroBenchmarks;
using System.Buffers;
using System.Linq;
namespace System.Memory
{
[BenchmarkCategory(Categories.Libraries)]
public class SequenceReader
{
private const int Count = 10000;
private ReadOnlySequence<int> _multiSegmentSequence;
[GlobalSetup]
public void Setup()
{
System.Memory<int> memory = new System.Memory<int>(Enumerable.Range(1, Count).ToArray());
BufferSegment<int> firstSegment = new BufferSegment<int>(memory.Slice(0, memory.Length / 2));
BufferSegment<int> secondSegment = firstSegment.Append(memory.Slice(memory.Length / 2, memory.Length / 2));
_multiSegmentSequence = new ReadOnlySequence<int>(firstSegment, 0, secondSegment, firstSegment.Memory.Length);
}
[Benchmark(OperationsPerInvoke = 16)]
public ReadOnlySequence<int> TryReadTo()
{
var sequenceReader = new System.Buffers.SequenceReader<int>(_multiSegmentSequence);
ReadOnlySequence<int> outSequence;
sequenceReader.TryReadTo(out outSequence, Count / 16); sequenceReader.TryReadTo(out outSequence, Count / 15);
sequenceReader.TryReadTo(out outSequence, Count / 14); sequenceReader.TryReadTo(out outSequence, Count / 13);
sequenceReader.TryReadTo(out outSequence, Count / 12); sequenceReader.TryReadTo(out outSequence, Count / 11);
sequenceReader.TryReadTo(out outSequence, Count / 10); sequenceReader.TryReadTo(out outSequence, Count / 09);
sequenceReader.TryReadTo(out outSequence, Count / 08); sequenceReader.TryReadTo(out outSequence, Count / 07);
sequenceReader.TryReadTo(out outSequence, Count / 06); sequenceReader.TryReadTo(out outSequence, Count / 05);
sequenceReader.TryReadTo(out outSequence, Count / 04); sequenceReader.TryReadTo(out outSequence, Count / 03);
sequenceReader.TryReadTo(out outSequence, Count / 02); sequenceReader.TryReadTo(out outSequence, Count / 01);
return outSequence;
}
}
}