Understanding Time of programing code in c++

model · 2011-12-17 07:16:39

Hi ,

I get the time of each line of code of my program .

Program :

cout<<" timeBeginPeriod : " << timeBeginPeriod(1) <<endl; //Add Winmm.lib in Project
cout<<" start Time : " << ( (double)GetTickCount() )/1000<<endl;
cout<<" Hi "<< ( (double)GetTickCount() )/1000<<endl;
cout<<" Hi , 123 456 "<< ( (double)GetTickCount() )/1000<<endl;

Note : GetTickCount() give me number of milisecs . ./

And i get this

timeBeginPeriod : 0
start Time : 137809
Hi 137809
endTimer : 0

Which mean , each line of code taking time " 137809 " in secs .
My question is What does mean by 137809 . Does it mean its taking that its taking 17 secs and 809 milisec ?

model · 2011-12-17 07:24:07

model wrote:

Hi ,
I get the time of each line of code of my program .
Program :
cout<<" timeBeginPeriod : " << timeBeginPeriod(1) <<endl; //Add Winmm.lib in Project
cout<<" start Time : " << ( (double)GetTickCount() )/1000<<endl;
cout<<" Hi "<< ( (double)GetTickCount() )/1000<<endl;
cout<<" Hi , 123 456 "<< ( (double)GetTickCount() )/1000<<endl;
Note : GetTickCount() give me number of milisecs . ./

And i get this
timeBeginPeriod : 0
start Time : 137809
Hi 137809
endTimer : 0
Which mean , each line of code taking time " 137809 " in secs .
My question is What does mean by 137809 . Does it mean its taking that its taking 17 secs and 809 milisec ?

I think its means 20sec and 809 milisec . Right ?
if so that mean in c++ each line of code take 20 secs and 809 mili secs . hmmmm ............

bobbym · 2011-12-17 08:50:30

Hi model;

That is not your exact output, what happened to the 123456?

Also 137809 is 137 seconds and 809 milliseconds.

Something is not right but GetTickCount() is incremental so if two of them are the same that means 0 time occurred between two lines.

model · 2011-12-17 08:56:54

bobbym wrote:

Hi model;
That is not your exact output, what happened to the 123456?
Also 137809 is 137 seconds and 809 milliseconds.
Something is not right but GetTickCount() is incremental so if two of them are the same that means 0 time occurred between two lines.

ahh hy 123456 is inside cout just for showing some output .that is not time .

model · 2011-12-17 09:00:43

Actually , i have moving objects presented in video . i calculated distance . I need to find speed . I am thinking that where should i add statement to get time and use it for speed calculation,. for deciding that i need to understand time meaning w,r,t code.

Well could you please tell me that how are u say : 137809 is 137 seconds and 809 milliseconds. ?

bobbym · 2011-12-17 09:05:49

The GetTickCount() function if I remember counts in milliseconds from the start of the machine.

So there are 137809 milliseconds, when you divide by 1000 ( there are 1000 milliseconds in a second ) you will get 137 seconds and 809 milliseconds.

Math Is Fun Forum

#1 2011-12-17 07:16:39

Understanding Time of programing code in c++

#2 2011-12-17 07:24:07

Re: Understanding Time of programing code in c++

#3 2011-12-17 08:50:30

Re: Understanding Time of programing code in c++

#4 2011-12-17 08:56:54

Re: Understanding Time of programing code in c++

#5 2011-12-17 09:00:43

Re: Understanding Time of programing code in c++

#6 2011-12-17 09:05:49

Re: Understanding Time of programing code in c++

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