antonfirsov

using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Linq;
using OurVerySecretLib.MathF.LinearAlgebra;
using System.Globalization;
using M = System.Math;

namespace OurVerySecretLib.MathF
{

antonfirsov

      Method | InputSize |          Mean |    StdDev | Scaled | Scaled-StdDev |

---------------- |---------- |-------------- |---------- |------- |-------------- | Standard | 16 | 55.6822 ns | 0.1794 ns | 1.00 | 0.00 | Bithack | 16 | 143.3762 ns | 0.4225 ns | 2.57 | 0.01 | BithackBatched | 16 | 110.5777 ns | 7.4833 ns | 1.99 | 0.13 | BatchedPointers | 16 | 49.9270 ns | 0.1580 ns | 0.90 | 0.00 | | | | | | | Standard | 64 | 234.1635 ns | 0.7504 ns | 1.00 | 0.00 | Bithack | 64 | 576.1446 ns | 1.0512 ns | 2.46 | 0.01 | BithackBatched | 64 | 214.5398 ns | 0.4343 ns | 0.92 | 0.00 |

antonfirsov

Reisize original:

                  Method |       Mean |    StdErr |    StdDev | Scaled | Scaled-StdDev | Allocated |

---------------------------- |----------- |---------- |---------- |------- |-------------- |---------- | 'System.Drawing Resize' | 55.7482 ms | 0.6225 ms | 2.4109 ms | 1.00 | 0.00 | 512 B | 'ImageSharp Resize' | 28.7155 ms | 0.0552 ms | 0.2138 ms | 0.52 | 0.02 | 187.04 kB | 'ImageSharp Compand Resize' | 58.1706 ms | 0.3284 ms | 1.2717 ms | 1.05 | 0.05 | 186.67 kB |

After:

antonfirsov

public interface IClipboardFormat
{
    string FormatName { get; }
}

public interface IClipboard
{
    void SetData(IClipboardFormat format, object data);
    object GetData(IClipboardFormat format);
}

antonfirsov

public interface IClipboardFormat
{
    string FormatName { get; }
}

public interface IClipboard
{
    void SetData(IClipboardFormat format, object data);
    object GetData(IClipboardFormat format);
}

antonfirsov

public struct Fast2DArray<T>
{
    public T[] Data;

    public int Width;
    public int Height;

    public Fast2DArray(T[,] data)
    {
        this.Height = data.GetLength(0);

antonfirsov

namespace ImageSharp
{
    using System;
    using System.Numerics;
    using System.Runtime.CompilerServices;
    using System.Runtime.InteropServices;

    /// <summary>
    /// One interface to rule them all
    /// </summary>

antonfirsov

/// <summary>
/// Since System.Span<T> fails to perform fast (and it will keep being slow for a long time on non-CoreCLR platforms),
/// we need to our own library-wide "semi-safe" solution. 
/// It has many advantages over passing void* pointers and/or array+indexer pairs.
/// </summary>
public unsafe struct UnsafeSpan<T> where T : struct
{
    public T[] Data { get; }
    public int Offset { get; }

antonfirsov

// <copyright file="Array2D.cs" company="James Jackson-South">
// Copyright (c) James Jackson-South and contributors.
// Licensed under the Apache License, Version 2.0.
// </copyright>

namespace ImageSharp.Benchmarks.General
{
    using System;

    using BenchmarkDotNet.Attributes;

antonfirsov

                          Method | Count |      Mean |    StdErr |    StdDev | Scaled | Scaled-StdDev |

------------------------------------ |------ |---------- |---------- |---------- |------- |-------------- | 'Array access using 2D array' | 10 | 0.6159 ns | 0.0075 ns | 0.0289 ns | 1.00 | 0.00 | 'Array access using a jagged array' | 10 | 1.0694 ns | 0.0153 ns | 0.0591 ns | 1.74 | 0.12 | 'Array access using Fast2DArray' | 10 | 1.0704 ns | 0.0045 ns | 0.0163 ns | 1.74 | 0.08 | 'Array access using 2D array' | 100 | 0.6121 ns | 0.0039 ns | 0.0153 ns | 1.00 | 0.00 | 'Array access using a jagged array' | 100 | 1.0334 ns | 0.0041 ns | 0.0160 ns | 1.69 | 0.05 | 'Array access using Fast2DArray' | 100 | 1.0042 ns | 0.0041 ns | 0.0161 ns | 1.64 | 0.05 | 'Array access using 2D array' | 1000 | 0.6208 ns | 0.0044 ns | 0.0172 ns | 1.00 | 0.00 | 'Array access using a jagged array' | 1000 | 1.030