MQTTnet/Source/MQTTnet.Benchmarks/MqttBufferReaderBenchmark.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Text;
using BenchmarkDotNet.Attributes;
using BenchmarkDotNet.Jobs;
using MQTTnet.Formatter;

namespace MQTTnet.Benchmarks
{
    [SimpleJob(RuntimeMoniker.Net60)]
    [MemoryDiagnoser]
    public class MqttBufferReaderBenchmark
    {
        byte[] _buffer;
        int _bufferLength;

        [GlobalSetup]
        public void GlobalSetup()
        {
            var writer = new MqttBufferWriter(1024, 1024);
            writer.WriteString("hgfjkdfkjlghfdjghdfljkdfhgdlkjfshgsldkfjghsdflkjghdsflkjhrstiuoghlkfjbhnfbutghjoiöjhklötnbhtroliöuhbjntluiobkjzbhtdrlskbhtruhjkfthgbkftgjhgfiklhotriuöhbjtrsioöbtrsötrhträhtrühjtriüoätrhjtsrölbktrbnhtrulöbionhströloubinströoliubhnsöotrunbtöroisntröointröioujhgötiohjgötorshjnbgtöorihbnjtröoihbjntröobntröoibntrjhötrohjbtröoihntröoibnrtoiöbtrjnboöitrhjtnriohötrhjtöroihjtroöihjtroösibntsroönbotöirsbntöoihjntröoihntroöbtrboöitrnhoöitrhjntröoishbnjtröosbhtröbntriohjtröoijtöoitbjöotibjnhöotirhbjntroöibhnjrtoöibnhtroöibnhtörsbnhtöoirbnhtöroibntoörhjnbträöbtrbträbtrbtirbätrsibohjntrsöiobthnjiohjsrtoib");

            _buffer = writer.GetBuffer();
            _bufferLength = writer.Length;
        }

        [Benchmark]
        public void Use_Span()
        {
            var span = _buffer.AsSpan(0, _bufferLength);
            Encoding.UTF8.GetString(span);
        }
        
        [Benchmark]
        public void Use_Encoding()
        {
            Encoding.UTF8.GetString(_buffer, 0, _bufferLength);
        }
    }
}