106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
#include <iostream>
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#include <random>
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#include <QElapsedTimer>
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#include "libxisf.h"
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using namespace LibXISF;
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template<typename T>
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void benchmarkType(float avg, float stdDev)
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{
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std::mt19937 gen;
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std::normal_distribution<float> normalDist {avg, stdDev};
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Image image(2048, 2048);
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UInt32 pixels = 2048*2048;
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UInt32 size = pixels*sizeof(T);
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T *ptr = (T*)image.imageData();
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for(UInt32 i=0; i < pixels; i++)
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{
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ptr[i] = normalDist(gen);
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}
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QElapsedTimer timer;
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double baseSize;
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{
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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baseSize = xisfImage.size();
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std::cout << "No compression \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s" << std::endl;
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}
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{
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image.setCompression(DataBlock::Zlib);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "Zlib compression \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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{
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image.setCompression(DataBlock::LZ4);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "LZ4 compression \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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{
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image.setCompression(DataBlock::LZ4HC);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "LZ4HC compression \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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image.setByteshuffling(true);
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{
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image.setCompression(DataBlock::Zlib);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "Zlib compression SH \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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{
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image.setCompression(DataBlock::LZ4);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "LZ4 compression SH \tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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{
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image.setCompression(DataBlock::LZ4HC);
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timer.start();
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XISFWriter writer;
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writer.writeImage(image);
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QByteArray xisfImage;
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writer.save(xisfImage);
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std::cout << "LZ4HC compression SH\tElapsed time: " << timer.elapsed() << " " << "ms\tSpeed: "
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<< size/1024.0/1.024/timer.elapsed() << "MiB/s\tRatio: " << baseSize/xisfImage.size() << std::endl;
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}
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}
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void benchmark()
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{
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std::cout << "UInt16 sample type" << std::endl;
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benchmarkType<UInt16>(500, 30);
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std::cout << "Float32 sample type" << std::endl;
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benchmarkType<float>(500 / 65535.0, 30 / 65535.0);
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}
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