Solved

Log time needed for process

Posted on 2000-04-14
3
192 Views
Last Modified: 2010-04-02
Hi,

Using Borland cpp Builder 4.x

I want to log the time needed for a certain process.

I tried :

SYSTEMTIME Time ;
GetSystemTime(&Time) ;
DWORD Seconds = (Time.wSecond + (Time.wMinute * 60) + (Time.wHour * 60 * 60))

Further down the code, after the process is finished I do this again and see what the difference is.

The question.
Is there an alternative and maybe faster way ??
Faster in the sense : more accurate ?

Is the above mentioned method effecient enough or is it system dependant and time consoming to get that time ??

Input is welcome.

sneeuw
0
Comment
Question by:sneeuw
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 

Author Comment

by:sneeuw
ID: 2717873
typo :
consoming = consuming
;-)
0
 
LVL 23

Accepted Solution

by:
chensu earned 50 total points
ID: 2718094
You may use the GetTickCount or timeGetTime functions. timeGetTime is more accurate.

"Windows NT/2000: The default precision of the timeGetTime function can be five milliseconds or more, depending on the machine. You can use the timeBeginPeriod and timeEndPeriod functions to increase the precision of timeGetTime. If you do so, the minimum difference between successive values returned by timeGetTime can be as large as the minimum period value set using timeBeginPeriod and timeEndPeriod. Use the QueryPerformanceCounter and QueryPerformanceFrequency functions to measure short time intervals at a high resolution,

Windows 95: The default precision of the timeGetTime function is 1 millisecond. In other words, the timeGetTime function can return successive values that differ by just 1 millisecond. This is true no matter what calls have been made to the timeBeginPeriod and timeEndPeriod functions."

See the following article for how to use the QueryPerformanceCounter function.

Win32 Multithreading Performance
http://msdn.microsoft.com/isapi/msdnlib.idc?theURL=/library/techart/msdn_threadli.htm
0
 

Author Comment

by:sneeuw
ID: 2727228
Seems to work OK.
Thanks !

sneeuw
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

What is C++ STL?: STL stands for Standard Template Library and is a part of standard C++ libraries. It contains many useful data structures (containers) and algorithms, which can spare you a lot of the time. Today we will look at the STL Vector. …
  Included as part of the C++ Standard Template Library (STL) is a collection of generic containers. Each of these containers serves a different purpose and has different pros and cons. It is often difficult to decide which container to use and …
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question