Amazon Ion ( http://amzn.github.io/ion-docs/ ) library for dotnet
This project is still in early development and not ready for production use.
IonDotnet can (de)serialize any POCO object
private class Experiment
{
public int Id { get; set; }
public string Name { get; set; }
public DateTimeOffset StartDate { get; set; }
public bool IsActive { get; set; }
public byte[] SampleData { get; set; }
public decimal Budget { get; set; }
public ExperimentResult Result { get; set; }
}
var experiment = new Experiment
{
Id = 233,
Name = "Measure performance impact of boxing",
StartDate = new DateTimeOffset(2018, 07, 21, 11, 11, 11, TimeSpan.Zero),
IsActive = true,
Result = ExperimentResult.Failure,
SampleData = new byte[100],
Budget = decimal.Parse("12345.01234567890123456789")
};
//Serialize an object to byte array
byte[] ionBytes = IonSerialization.Serialize(experiment, converter);
//Deserialize a byte array to an object
Experiment deserialized = IonSerialization.Deserialize<Experiment>(ionBytes, converter);Test: serialize 1000 records
BenchmarkDotNet=v0.11.0, OS=Windows 10.0.17134.191 (1803/April2018Update/Redstone4)
Intel Core i7-6700HQ CPU 2.60GHz (Max: 2.59GHz) (Skylake), 1 CPU, 8 logical and 4 physical cores
Frequency=2531251 Hz, Resolution=395.0616 ns, Timer=TSC
.NET Core SDK=2.1.302
[Host] : .NET Core 2.1.2 (CoreCLR 4.6.26628.05, CoreFX 4.6.26629.01), 64bit RyuJIT
DefaultJob : .NET Core 2.1.2 (CoreCLR 4.6.26628.05, CoreFX 4.6.26629.01), 64bit RyuJIT
Method | Mean | Error | StdDev | Gen 0 | Gen 1 | Gen 2 | Allocated |
------------------------ |---------:|----------:|----------:|---------:|---------:|---------:|-----------:|
JSONDotnet | 3.198 ms | 0.0291 ms | 0.0272 ms | 371.0938 | 371.0938 | 371.0938 | 1575.56 KB |
IonReflectionSerializer | 5.406 ms | 0.1076 ms | 0.1057 ms | 54.6875 | 15.6250 | - | 522.33 KB |
IonExpSerializer | 2.731 ms | 0.0287 ms | 0.0269 ms | 35.1563 | 11.7188 | - | 412.95 KB |
IonDotnetManual | 2.288 ms | 0.0322 ms | 0.0302 ms | 31.2500 | 11.7188 | - | 383.37 KB |
Test 1000 serializations of 1000 records. Currently the following code/output is used to reference ion-java speed (probably not fair)
# sample output
ion-java: writing took 707.86935ms
IonDotnet: writing took 401.4152ms// JAVA code
public class MyBenchmark {
private static final IonBinaryWriterBuilder builder = IonBinaryWriterBuilder.standard();
public static void main(String[] args) throws IOException {
// warm up
System.nanoTime();
runOnce();
long start = System.nanoTime();
for (int i = 0; i < 1000; i++) {
runOnce();
}
long end = System.nanoTime();
double usec = (end - start) * 1.0 / 1000000;
System.out.println("ion-java: writing took " + usec + "ms");
}
private static void runOnce() throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
IonWriter writer = builder.build(out);
writer.stepIn(IonType.LIST);
for (int i = 0; i < 1000; i++) {
writer.stepIn(IonType.STRUCT);
writer.setFieldName("boolean");
writer.writeBool(true);
writer.setFieldName("string");
writer.writeString("this is a string");
writer.setFieldName("integer");
writer.writeInt(Integer.MAX_VALUE);
writer.setFieldName("float");
writer.writeFloat(432.23123f);
writer.setFieldName("timestamp");
writer.writeTimestamp(Timestamp.forDay(2000, 11, 11));
writer.stepOut();
}
writer.stepOut();
writer.finish();
}
}// C# code
public void Run(string[] args)
{
//warmup
var sw = new Stopwatch();
sw.Start();
sw.Stop();
RunOnce();
sw.Start();
for (var i = 0; i < 1000; i++)
{
RunOnce();
}
sw.Stop();
Console.WriteLine($"IonDotnet: writing took {sw.ElapsedTicks * 1.0 / TimeSpan.TicksPerMillisecond}ms");
}
private static void RunOnce()
{
byte[] bytes = null;
Benchmark.Writer.StepIn(IonType.List);
for (var i = 0; i < 1000; i++)
{
Benchmark.Writer.StepIn(IonType.Struct);
Benchmark.Writer.SetFieldName("boolean");
Benchmark.Writer.WriteBool(true);
Benchmark.Writer.SetFieldName("string");
Benchmark.Writer.WriteString("this is a string");
Benchmark.Writer.SetFieldName("integer");
Benchmark.Writer.WriteInt(int.MaxValue);
Benchmark.Writer.SetFieldName("float");
Benchmark.Writer.WriteFloat(432.23123f);
Benchmark.Writer.SetFieldName("timestamp");
Benchmark.Writer.WriteTimestamp(new Timestamp(new DateTime(2000, 11, 11)));
Benchmark.Writer.StepOut();
}
Benchmark.Writer.StepOut();
Benchmark.Writer.Flush(ref bytes);
Benchmark.Writer.Finish();
}