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Improve granularity of Perf.Utf8Encoding benchmarks #5048

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Improve granularity of Perf.Utf8Encoding benchmarks #5048

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26 changes: 18 additions & 8 deletions src/benchmarks/micro/libraries/System.Text.Encoding/Perf.Utf8Encoding.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,26 +11,36 @@ namespace System.Text
[BenchmarkCategory(Categories.Libraries, Categories.Runtime)]
public class Perf_Utf8Encoding : Perf_TextBase
{
private string _unicode;
private string _string;
private byte[] _bytes;
private UTF8Encoding _utf8Encoding;
private char[] _chars;

[GlobalSetup]
public void Setup()
{
_unicode = File.ReadAllText(Path.Combine(TextFilesRootPath, $"{Input}.txt"));
_utf8Encoding = new UTF8Encoding();
_bytes = _utf8Encoding.GetBytes(_unicode);
_string = File.ReadAllText(Path.Combine(TextFilesRootPath, $"{Input}.txt"));
_bytes = Encoding.UTF8.GetBytes(_string);
_chars = _string.ToCharArray();
}

[Benchmark]
[MemoryRandomization]
public int GetByteCount() => _utf8Encoding.GetByteCount(_unicode);
public int GetByteCount() => Encoding.UTF8.GetByteCount(_string);

[Benchmark]
public byte[] GetBytes() => _utf8Encoding.GetBytes(_unicode);
[MemoryRandomization]
public int GetCharCount() => Encoding.UTF8.GetCharCount(_bytes);

[Benchmark]
public int GetBytesFromChars() => Encoding.UTF8.GetBytes(_chars.AsSpan(), _bytes);

[Benchmark]
public int GetCharsFromBytes() => Encoding.UTF8.GetChars(_bytes.AsSpan(), _chars);

[Benchmark]
public string GetStringFromBytes() => Encoding.UTF8.GetString(_bytes);

[Benchmark]
public string GetString() => _utf8Encoding.GetString(_bytes);
public byte[] GetBytesFromString() => Encoding.UTF8.GetBytes(_string);
}
}
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