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// 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.Text;
using System.Runtime.CompilerServices;
using Microsoft.Xunit.Performance;
using Xunit;
namespace System.Buffers.Text.Tests
{
public static partial class Utf8ParserTests
{
private const int InnerCount = 100000;
[Benchmark]
[InlineData("True")]
[InlineData("False")]
private static void PrimitiveParserByteSpanToBool(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out bool value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("42")] // standard parse
[InlineData("-128")] // min value
[InlineData("127")] // max value
private static void ParserSByte(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out sbyte value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("42")] // standard parse
[InlineData("0")] // min value
[InlineData("255")] // max value
private static void ParserByte(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out byte value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("4212")] // standard parse
[InlineData("-32768")] // min value
[InlineData("32767")] // max value
private static void ParserInt16(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out short value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("4212")] // standard parse
[InlineData("0")] // min value
[InlineData("65535")] // max value
private static void ParserUInt16(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out ushort value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("12837467")] // standard parse
[InlineData("-2147483648")] // min value
[InlineData("2147483647")] // max value
private static void ParserInt32(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out int value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("12837467")] // standard parse
[InlineData("0")] // min value
[InlineData("4294967295")] // max value
private static void ParserUInt32(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out uint value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("12837467")] // standard parse
[InlineData("-9223372036854775808")] // min value
[InlineData("9223372036854775807")] // max value
private static void ParserInt64(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out long value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("12837467")] // standard parse
[InlineData("0")] // min value
[InlineData("18446744073709551615")] // max value
private static void ParserUInt64(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out ulong value, out int bytesConsumed);
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
[Benchmark(InnerIterationCount = InnerCount)]
[InlineData("Fri, 30 Jun 2000 03:15:45 GMT")] // standard parse
private static void ParserDateTimeOffsetR(string text)
{
byte[] utf8ByteArray = Encoding.UTF8.GetBytes(text);
ReadOnlySpan<byte> utf8ByteSpan = utf8ByteArray;
foreach (BenchmarkIteration iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
Utf8Parser.TryParse(utf8ByteSpan, out DateTimeOffset value, out int bytesConsumed, 'R');
TestHelpers.DoNotIgnore(value, bytesConsumed);
}
}
}
}
}
}
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