using System.Runtime.InteropServices;

using BenchmarkDotNet.Attributes;

using BenchmarkDotNet.Engines;

using NumSharp.Backends.Unmanaged;

using NumSharp.Utilities;

namespace NumSharp.Benchmark

{

//| Method | Mean | Error | StdDev | Min | Max | Median |

//|---------------------------- |-----------:|-----------:|-----------:|-----------:|-----------:|-----------:|

//| UnmanagedMemoryAllocate | 2.289 ms | 2.0404 ms | 1.3496 ms | 1.417 ms | 5.950 ms | 2.095 ms |

//| MarshalAllocHGlobal | 1.881 ms | 0.8871 ms | 0.5868 ms | 1.281 ms | 3.283 ms | 1.725 ms |

//| GCHandleAllocArray | 1.505 ms | 0.6911 ms | 0.4571 ms | 1.292 ms | 2.782 ms | 1.329 ms |

//|

//| UnmanagedMemoryAllocate500k | 3.631 ms | 1.5504 ms | 1.0255 ms | 3.288 ms | 6.549 ms | 3.297 ms |

//| MarshalAllocHGlobal500k | 3.188 ms | 0.1812 ms | 0.1198 ms | 3.099 ms | 3.461 ms | 3.128 ms |

//| GCHandleAllocArray500k | 373.787 ms | 20.6391 ms | 13.6515 ms | 367.371 ms | 412.085 ms | 368.850 ms |

//|

//| UnmanagedMemoryAllocate1m | 3.863 ms | 1.4788 ms | 0.9781 ms | 3.355 ms | 6.599 ms | 3.529 ms |

//| MarshalAllocHGlobal1m | 3.111 ms | 0.3413 ms | 0.2258 ms | 2.943 ms | 3.675 ms | 3.029 ms |

//| GCHandleAllocArray1m | 584.897 ms | 13.0944 ms | 8.6612 ms | 575.367 ms | 599.496 ms | 583.491 ms |

[SimpleJob(RunStrategy.ColdStart, targetCount: 10)]

[MinColumn, MaxColumn, MeanColumn, MedianColumn]

[HtmlExporter]

public class ArrayCloning

{

long[] vals = new long[15_000];

[Benchmark]

public void ArrayConvertClone()

{

var a = ArrayConvert.Clone(vals);

}

[Benchmark]

public void Clone()

{

var a = vals.Clone();

}

}

}