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JimBobSquarePantsJimBobSquarePants
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Merge pull request #2051 from br3aker/dp/jpeg-benchmark
Improved jpeg encoding benchmarks
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‎tests/ImageSharp.Benchmarks/Codecs/Jpeg/EncodeJpeg.cs‎

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‎tests/ImageSharp.Benchmarks/Codecs/Jpeg/EncodeJpegComparison.cs‎

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// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System.Drawing.Imaging;
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using System.IO;
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using BenchmarkDotNet.Attributes;
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using SixLabors.ImageSharp.Formats.Jpeg;
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Tests;
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using SkiaSharp;
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using SDImage = System.Drawing.Image;
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namespace SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg
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{
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/// <summary>
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/// Benchmark for performance comparison between other codecs.
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/// </summary>
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/// <remarks>
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/// This benchmarks tests baseline 4:2:0 chroma sampling path.
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/// </remarks>
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public class EncodeJpegComparison
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{
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// Big enough, 4:4:4 chroma sampling
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private const string TestImage = TestImages.Jpeg.Baseline.Calliphora;
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// Change/add parameters for extra benchmarks
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[Params(75, 90, 100)]
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public int Quality;
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private MemoryStream destinationStream;
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// ImageSharp
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private Image<Rgba32> imageImageSharp;
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private JpegEncoder encoderImageSharp;
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// SkiaSharp
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private SKBitmap imageSkiaSharp;
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[GlobalSetup(Target = nameof(BenchmarkImageSharp))]
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public void SetupImageSharp()
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{
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using FileStream imageBinaryStream = File.OpenRead(Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, TestImage));
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this.imageImageSharp = Image.Load<Rgba32>(imageBinaryStream);
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this.encoderImageSharp = new JpegEncoder { Quality = this.Quality, ColorType = JpegColorType.YCbCrRatio420 };
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this.destinationStream = new MemoryStream();
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}
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[GlobalCleanup(Target = nameof(BenchmarkImageSharp))]
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public void CleanupImageSharp()
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{
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this.imageImageSharp.Dispose();
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this.imageImageSharp = null;
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this.destinationStream.Dispose();
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this.destinationStream = null;
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}
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[Benchmark(Description = "ImageSharp")]
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public void BenchmarkImageSharp()
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{
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this.imageImageSharp.SaveAsJpeg(this.destinationStream, this.encoderImageSharp);
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this.destinationStream.Seek(0, SeekOrigin.Begin);
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}
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[GlobalSetup(Target = nameof(BenchmarkSkiaSharp))]
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public void SetupSkiaSharp()
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{
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using FileStream imageBinaryStream = File.OpenRead(Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, TestImage));
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this.imageSkiaSharp = SKBitmap.Decode(imageBinaryStream);
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this.destinationStream = new MemoryStream();
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}
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[GlobalCleanup(Target = nameof(BenchmarkSkiaSharp))]
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public void CleanupSkiaSharp()
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{
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this.imageSkiaSharp.Dispose();
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this.imageSkiaSharp = null;
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this.destinationStream.Dispose();
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this.destinationStream = null;
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}
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[Benchmark(Description = "SkiaSharp")]
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public void BenchmarkSkiaSharp()
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{
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this.imageSkiaSharp.Encode(SKEncodedImageFormat.Jpeg, this.Quality).SaveTo(this.destinationStream);
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this.destinationStream.Seek(0, SeekOrigin.Begin);
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}
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}
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}
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/*
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BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19044
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Intel Core i7-6700K CPU 4.00GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
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.NET SDK=6.0.100-preview.3.21202.5
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[Host] : .NET Core 3.1.21 (CoreCLR 4.700.21.51404, CoreFX 4.700.21.51508), X64 RyuJIT
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DefaultJob : .NET Core 3.1.21 (CoreCLR 4.700.21.51404, CoreFX 4.700.21.51508), X64 RyuJIT
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| Method | Quality | Mean | Error | StdDev |
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|----------- |-------- |----------:|----------:|----------:|
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| ImageSharp | 75 | 6.820 ms | 0.0374 ms | 0.0312 ms |
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| SkiaSharp | 75 | 16.417 ms | 0.3238 ms | 0.4747 ms |
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| ImageSharp | 90 | 7.849 ms | 0.1565 ms | 0.3126 ms |
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| SkiaSharp | 90 | 16.893 ms | 0.2200 ms | 0.2058 ms |
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| ImageSharp | 100 | 11.016 ms | 0.2087 ms | 0.1850 ms |
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| SkiaSharp | 100 | 20.410 ms | 0.2583 ms | 0.2290 ms |
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*/

‎tests/ImageSharp.Benchmarks/Codecs/Jpeg/EncodeJpegFeatures.cs‎

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// Copyright (c) Six Labors.
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// Licensed under the Apache License, Version 2.0.
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using System.Collections.Generic;
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using System.IO;
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using BenchmarkDotNet.Attributes;
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using SixLabors.ImageSharp.Formats.Jpeg;
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Tests;
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namespace SixLabors.ImageSharp.Benchmarks.Codecs.Jpeg
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{
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/// <summary>
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/// Benchmark for all available encoding features of the Jpeg file type.
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/// </summary>
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/// <remarks>
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/// This benchmark does NOT compare ImageSharp to any other jpeg codecs.
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/// </remarks>
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public class EncodeJpegFeatures
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{
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// Big enough, 4:4:4 chroma sampling
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// No metadata
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private const string TestImage = TestImages.Jpeg.Baseline.Calliphora;
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public static IEnumerable<JpegColorType> ColorSpaceValues =>
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new[] { JpegColorType.Luminance, JpegColorType.Rgb, JpegColorType.YCbCrRatio420, JpegColorType.YCbCrRatio444 };
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[Params(75, 90, 100)]
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public int Quality;
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[ParamsSource(nameof(ColorSpaceValues), Priority = -100)]
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public JpegColorType TargetColorSpace;
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private Image<Rgb24> bmpCore;
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private JpegEncoder encoder;
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private MemoryStream destinationStream;
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[GlobalSetup]
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public void Setup()
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{
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using FileStream imageBinaryStream = File.OpenRead(Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, TestImage));
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this.bmpCore = Image.Load<Rgb24>(imageBinaryStream);
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this.encoder = new JpegEncoder { Quality = this.Quality, ColorType = this.TargetColorSpace };
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this.destinationStream = new MemoryStream();
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}
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[GlobalCleanup]
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public void Cleanup()
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{
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this.bmpCore.Dispose();
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this.bmpCore = null;
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this.destinationStream.Dispose();
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this.destinationStream = null;
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}
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[Benchmark]
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public void Benchmark()
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{
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this.bmpCore.SaveAsJpeg(this.destinationStream, this.encoder);
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this.destinationStream.Seek(0, SeekOrigin.Begin);
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}
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}
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}
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/*
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BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19044
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Intel Core i7-6700K CPU 4.00GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
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.NET SDK=6.0.100-preview.3.21202.5
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[Host] : .NET Core 3.1.21 (CoreCLR 4.700.21.51404, CoreFX 4.700.21.51508), X64 RyuJIT
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DefaultJob : .NET Core 3.1.21 (CoreCLR 4.700.21.51404, CoreFX 4.700.21.51508), X64 RyuJIT
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| Method | TargetColorSpace | Quality | Mean | Error | StdDev |
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|---------- |----------------- |-------- |----------:|----------:|----------:|
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| Benchmark | Luminance | 75 | 7.055 ms | 0.1411 ms | 0.3297 ms |
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| Benchmark | Rgb | 75 | 12.139 ms | 0.0645 ms | 0.0538 ms |
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| Benchmark | YCbCrRatio420 | 75 | 6.463 ms | 0.0282 ms | 0.0235 ms |
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| Benchmark | YCbCrRatio444 | 75 | 8.616 ms | 0.0422 ms | 0.0374 ms |
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| Benchmark | Luminance | 90 | 7.011 ms | 0.0361 ms | 0.0301 ms |
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| Benchmark | Rgb | 90 | 13.119 ms | 0.0947 ms | 0.0886 ms |
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| Benchmark | YCbCrRatio420 | 90 | 6.786 ms | 0.0328 ms | 0.0274 ms |
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| Benchmark | YCbCrRatio444 | 90 | 8.672 ms | 0.0772 ms | 0.0722 ms |
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| Benchmark | Luminance | 100 | 9.554 ms | 0.1211 ms | 0.1012 ms |
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| Benchmark | Rgb | 100 | 19.475 ms | 0.1080 ms | 0.0958 ms |
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| Benchmark | YCbCrRatio420 | 100 | 10.146 ms | 0.0585 ms | 0.0519 ms |
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| Benchmark | YCbCrRatio444 | 100 | 15.317 ms | 0.0709 ms | 0.0592 ms |
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*/

‎tests/ImageSharp.Benchmarks/Codecs/Jpeg/EncodeJpegMultiple.cs‎

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