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Refactor Serializer memory usage.

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This commit is contained in:
Christian Kratky
2018-06-17 13:47:58 +02:00
parent beb54acc2f
commit 56e9e15ac0
5 changed files with 117 additions and 36 deletions
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Tests/MQTTnet.Benchmarks/SerializerBenchmark.cs
+46 -9
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@@ -6,8 +6,9 @@ using BenchmarkDotNet.Attributes.Jobs;
using BenchmarkDotNet.Attributes.Exporters;
using System;
using System.Threading;
using System.IO;
using System.Threading.Tasks;
using MQTTnet.Adapter;
using MQTTnet.Channel;
namespace MQTTnet.Benchmarks
{
@@ -38,6 +39,7 @@ namespace MQTTnet.Benchmarks
for (var i = 0; i < 10000; i++)
{
_serializer.Serialize(_packet);
_serializer.FreeBuffer();
}
}
@@ -46,16 +48,51 @@ namespace MQTTnet.Benchmarks
{
for (var i = 0; i < 10000; i++)
{
using (var stream = new MemoryStream())
{
stream.Write(_serializedPacket.Array, _serializedPacket.Offset, _serializedPacket.Count);
stream.Position = 0;
var channel = new BenchmarkMqttChannel(_serializedPacket);
var channel = new TestMqttChannel(stream);
var header = MqttPacketReader.ReadFixedHeaderAsync(channel, CancellationToken.None).GetAwaiter().GetResult();
_serializer.Deserialize(new ReceivedMqttPacket(header.Flags, new MqttPacketBodyReader(_serializedPacket.Array, _serializedPacket.Count - header.RemainingLength)));
}
}
var header = MqttPacketReader.ReadFixedHeaderAsync(channel, CancellationToken.None).GetAwaiter().GetResult();
_serializer.Deserialize(new ReceivedMqttPacket(header.Flags, new MqttPacketBodyReader(_serializedPacket.Array, _serializedPacket.Count - header.RemainingLength)));
}
private class BenchmarkMqttChannel : IMqttChannel
{
private readonly ArraySegment<byte> _buffer;
private int _position;
public BenchmarkMqttChannel(ArraySegment<byte> buffer)
{
_buffer = buffer;
_position = _buffer.Offset;
}
public string Endpoint { get; }
public Task ConnectAsync(CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
public Task DisconnectAsync()
{
throw new NotImplementedException();
}
public Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
Array.Copy(_buffer.Array, _position, buffer, offset, count);
_position += count;
return Task.FromResult(count);
}
public Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
throw new NotImplementedException();
}
public void Dispose()
{
}
}
}