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[Config(typeof(Config))]
public class StringSerialisationDeserialisation
{
static void Main(string[] args)
{
var test = new StringSerialisationDeserialisation();
var normalWrite = test.NormalWrite();
Console.WriteLine("Normal write: length={0}, \"{1}\"", normalWrite.Length,
Encoding.UTF8.GetString(normalWrite.GetBuffer(), 0, (int)normalWrite.Length));
Console.WriteLine("Normal read: {0}", test.NormalRead());
var optimisedWrite = test.OptimisedWrite();
Console.WriteLine("Optimised write: length={0} ({1}), \"{2}\"",
optimisedWrite.Length, optimisedWrite.GetBuffer()[0],
Encoding.UTF8.GetString(optimisedWrite.GetBuffer(), 1, (int)optimisedWrite.Length - 1));
Console.WriteLine("Optimised read: {0}", test.OptimisedRead());
var summary = BenchmarkRunner.Run<StringSerialisationDeserialisation>();
}
private class Config : ManualConfig
{
public Config()
{
Add(Job.Clr.WithLaunchCount(1).WithWarmupCount(5).WithTargetCount(5));
Add(new MemoryDiagnoser());
Add(JitOptimizationsValidator.FailOnError);
Add(RPlotExporter.Default);
}
}
private static string textToWriteShort = "Lorem ipsum gravida habitant fames senectus.";
private static string textToWriteLong = "Lorem ipsum quis per at sit sollicitudin, proin pharetra vivamus maecenas vitae, lacus senectus curabitur ad donec.";
private static Serializer serialiser = new Serializer();
private static SerializerSession serializerSession = new SerializerSession(serialiser);
private static DeserializerSession deserializerSession = new DeserializerSession(serialiser);
private static StringSerializer stringSerialiser = StringSerializer.Instance;
private static MemoryStream streamNormalWrite, streamNormalRead;
private static MemoryStream streamOptimisedWrite, streamOptimisedRead;
static StringSerialisationDeserialisation()
{
// Writing
streamNormalWrite = new MemoryStream(1024);
streamOptimisedWrite = new MemoryStream(1024);
// Reading
var normalSerialisedText = Encoding.UTF8.GetBytes(textToWriteShort);
streamNormalRead = new MemoryStream(normalSerialisedText, 0, normalSerialisedText.Length, writable: false, publiclyVisible: true);
var tempStream = new MemoryStream();
stringSerialiser.WriteValue(tempStream, textToWriteShort, serializerSession);
byte[] wireSerialisedText = new byte[tempStream.Length];
Array.Copy(tempStream.GetBuffer(), wireSerialisedText, tempStream.Length);
streamOptimisedRead = new MemoryStream(wireSerialisedText);
}
[Benchmark]
public MemoryStream NormalWrite()
{
streamNormalWrite.Position = 0;
var bytes = Encoding.UTF8.GetBytes(textToWriteShort);
streamNormalWrite.Write(bytes, 0, bytes.Length);
return streamNormalWrite;
}
[Benchmark]
public MemoryStream OptimisedWrite()
{
streamOptimisedWrite.Position = 0;
stringSerialiser.WriteValue(streamOptimisedWrite, textToWriteShort, serializerSession);
return streamOptimisedWrite;
}
[Benchmark]
public string NormalRead()
{
return Encoding.UTF8.GetString(streamNormalRead.GetBuffer(), 0, (int)streamNormalRead.Length);
}
[Benchmark]
public string OptimisedRead()
{
streamOptimisedRead.Position = 0;
//return (string)stringSerialiser.ReadValue(streamOptimisedRead, deserializerSession);
return StringSerializer.ReadValueImpl(streamOptimisedRead, deserializerSession);
}
}
Owner

mattwarren commented Aug 19, 2016

Results:

image

Owner

mattwarren commented Aug 19, 2016

Host Process Environment Information:
BenchmarkDotNet.Core=v0.9.9.0
OS=Microsoft Windows NT 6.1.7601 Service Pack 1
Processor=Intel(R) Core(TM) i7-4800MQ CPU 2.70GHz, ProcessorCount=8
Frequency=2630761 ticks, Resolution=380.1181 ns, Timer=TSC
CLR=MS.NET 4.0.30319.42000, Arch=32-bit RELEASE
GC=Concurrent Workstation
JitModules=clrjit-v4.6.1076.0

Type=StringSerialisationDeserialisation  Mode=Throughput  Toolchain=Clr  
Runtime=Clr  LaunchCount=1  WarmupCount=5  
TargetCount=5  
Method Median StdDev Gen 0 Gen 1 Gen 2 Bytes Allocated/Op
NormalWrite 121.9761 ns 8.9020 ns 428.03 - - 19.87
OptimisedWrite 112.4477 ns 0.5268 ns - - - 0.01
NormalRead 66.2142 ns 0.8424 ns 802.19 - - 37.00
OptimisedRead 95.5270 ns 1.5711 ns 777.86 - - 35.95
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