【树莓派运行时间计算】

编程入门行业动态更新时间:2024-10-28 21:23:31

【树莓派运行<a href=https://www.elefans.com/category/jswz/34/1771441.html style= 时间计算】"/>

【树莓派运行时间计算】

文章目录

前言
一、如何获取时刻？
二、测试
- 1.测试1
总结
- 1.猜想1：
- 2.猜想2：
- 3.猜想3：
- 4. 猜想4：

前言

提示：这里可以添加本文要记录的大概内容：

为了计算树莓派运行速度，需要找函数来实际测试

提示：以下是本篇文章正文内容，下面案例可供参考

一、如何获取时刻？

opencv t提供的

m_lastTime=（double）getTickConunt();

Qt
提供的

QTime time;
time.start();
Function();
qDebug() << time.elapsed();

#include <QCoreApplication>
#include <QElapsedTimer>
#include <QDebug>int main(int argc, char *argv[])
{QCoreApplication a(argc, argv);QElapsedTimer timer;timer.start(); // 开始计时// 在这里放入你想要测量执行时间的代码段qint64 elapsed = timer.elapsed(); // 获取经过的毫秒数qDebug() << "Running time:" << elapsed << "milliseconds";return a.exec();
}

二、测试

1.测试1

·**结论： QElapsedTimer go_timer_qe; //这个方法测试结果差不多 QTime go_timer; //这个方法测试的数据有严重问题，有空再查明原因**
代码如下（示例）：

  qDebug() << go_timer_count ;if(go_timer_count==0){go_timer_count++;go_timer_qe.start();time_Start = clock();}else{go_timer_count=0;qint64 elapsed = go_timer_qe.elapsed(); // 获取经过的毫秒数qDebug() << "Running time:" << elapsed << "milliseconds";time_End = clock();qDebug()<<(time_End - time_Start)<<"ms";}

结果

Running time: 30 milliseconds
16263 ms
0
1
Running time: 36 milliseconds
21306 ms     //错误数据
0
1
Running time: 26 milliseconds
23931 ms
0
1
Running time: 32 milliseconds
23546 ms
0
1
Running time: 37 milliseconds
19800 ms
0
1
Running time: 33 milliseconds
23835 ms
0
1
Running time: 33 milliseconds
23012 ms

总结

整体满足要求，可以开启新篇章。

1.猜想1：

不知道是不是定时器开启读取数据的原因，读取到的时间并不固定，还是说定时器本身就不准？

void MainWindow::readFarme()
{qDebug() << go_timer_count ;if(go_timer_count==0){go_timer_count++;go_timer_qe.start();// time_Start = clock();}else{go_timer_count=0;qint64 elapsed = go_timer_qe.elapsed(); // 获取经过的毫秒数qDebug() << "Running time:" << elapsed << "milliseconds";// time_End = clock();// qDebug()<<(time_End - time_Start)<<"ms";}videocapture->read(matframe);//qDebug()<<"read frame...";if(bMethod){cvtColor(matframe,tmp,COLOR_BGR2GRAY);Canny(tmp,dst,30,255);}else{dst =matframe.clone();}QPixmap qpixmap =Mat2QImage(dst);ui->label->setPixmap(qpixmap);}

摄像头已打开
0
1
Running time: 516 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 21 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 17 milliseconds
0
1
Running time: 52 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 40 milliseconds
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1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 48 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 56 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 38 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 39 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 39 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 45 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 46 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 23 milliseconds
0
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Running time: 24 milliseconds
0
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Running time: 50 milliseconds
0
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Running time: 35 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 25 milliseconds
0
1
Running time: 24 milliseconds
0
1
Running time: 43 milliseconds
0
1
Running time: 48 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 25 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 40 milliseconds
0
1
Running time: 25 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 43 milliseconds
0
1
Running time: 44 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 43 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 45 milliseconds
0
1
Running time: 52 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 38 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 40 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 48 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 39 milliseconds
0
1
Running time: 42 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 19 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 18 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 38 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 42 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 21 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 45 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 46 milliseconds
0
1
Running time: 18 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 47 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 43 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 45 milliseconds

2.猜想2：

摄像头已打开
0
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Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
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Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 31 milliseconds
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Running time: 32 milliseconds
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Running time: 32 milliseconds
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Running time: 32 milliseconds
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Running time: 31 milliseconds
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Running time: 32 milliseconds
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Running time: 32 milliseconds
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Running time: 32 milliseconds
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0

3.猜想3：

只开读取不显示，有一定影响，最小31 ，最大36

摄像头已打开
0
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Running time: 489 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 31 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 34 milliseconds
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Running time: 32 milliseconds
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Running time: 33 milliseconds
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Running time: 33 milliseconds
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Running time: 33 milliseconds
0
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Running time: 34 milliseconds
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Running time: 33 milliseconds
0
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Running time: 35 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 34 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 30 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 35 milliseconds
0
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Running time: 32 milliseconds
0
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Running time: 33 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 33 milliseconds
0
08:23:00: The program has unexpectedly finished.

4. 猜想4：

有22-27 到41的，为什么会变小，难道是丢帧了，没有新的思路去研究？
dst =matframe.clone();
QPixmap qpixmap =Mat2QImage(dst);
ui->label->setPixmap(qpixmap);

摄像头已打开
0
1
Running time: 464 milliseconds
0
1
Running time: 22 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 49 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 40 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 44 milliseconds
0
1
Running time: 26 milliseconds
0
1
Running time: 42 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 32 milliseconds
0

08:33:09: Starting /home/pi/build-piqt_opencv_frame-Desktop-Debug/piqt_opencv_frame ...
摄像头已打开
0
1
Running time: 464 milliseconds
0
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Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
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Running time: 43 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 42 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 44 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 45 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 41 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 47 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 45 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 43 milliseconds
0
1
Running time: 29 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 38 milliseconds
0
1
Running time: 25 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 35 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 36 milliseconds
0
1
Running time: 27 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 50 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 37 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 31 milliseconds
0
1
Running time: 28 milliseconds
0
1
Running time: 33 milliseconds
0
1
Running time: 34 milliseconds
0
1
Running time: 21 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 32 milliseconds
0
1
Running time: 30 milliseconds
0
1
Running time: 39 milliseconds
0
1
Running time: 45 milliseconds
08:33:18: The program has unexpectedly finished.

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【树莓派运行时间计算】

本文发布于:2023-12-03 08:58:29，感谢您对本站的认可！

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