6 posts - 4 authors - Last post: 7 May 2008Timers - multi media vs query performance counter 3D Programming & Tools.

9 posts - 7 authors - Last post: 3 Mar 2008I recently upgraded my machine up to an Athlon64 X2 processor, and .

2 posts - 2 authors - Last post: 24 Dec 2003GetTickCount vs QueryPerformanceCounter/QueryPerformanceFrequency API.

27 Mar 2009 . I have come across the following example code when I tried to find example usage of this function supplied by WinAPI: Code: __int64 freq, .

6 posts - 4 authors - Last post: 21 Feb 2008Hi I am using a "Timing" class which performs timing measurements - and returns "tick" values to me. The tick values are however.

3 posts - 2 authors - Last post: 24 Janif (QueryPerformanceCounter(&t0)) { /* ** tested code here ** */ if ( QueryPerformanceCounter(&t1)) { micros = (double)(t1.QuadPart - t0. .

20 Jan 2007 . When timing code to identify performance bottlenecks, you .

15 posts - 7 authors - Last post: 1 May 2006[Archive] Need help with QueryPerformanceCounter and Dual Processors General Development.

4 posts - 3 authors - Last post: 14 Nov 2005QueryPerformanceCounter() After a very exhaustive search I've looked at a way to make a timer for two things; -To time a one-time event like .

9 posts - 4 authors - Last post: 28 Jun 2005[VB]QueryPerformanceCounter and QueryPerformancefrequency Games and Graphics Programming.

14 posts - 5 authors - Last post: 18 Jan 2007The value returned by QueryPerformanceCounter() is changing but the result of the division remains the same frame after frame. .

QueryPerformanceFrequency & QueryPerformanceCounter: Nice There is one more item in our bag of tricks. It is simple, elegant, and as far as I can tell, .

When /usepmtimer is specified in boot.ini for Windows 2003 and Windows XP SMP HALs, QueryPerformanceCounter does not behave properly. .

30 Jan 2006 . QueryPerformanceCounter makes GetTickCount look like.. like.. something not very fast. It accesses the CPU's high performance counter which .

11 Aug 2009 . When measuring time only, the QueryPerformanceFrequency() and QueryPerformanceCounter() APIs can be employed. .

8 Jun 2006 . Of course, whilst the use of QueryPerformanceCounter/SimpleExecutionTimer is the need to add extra lines of code to your application. .

QueryPerformanceCounter The QueryPerformanceCounter function retrieves the current value of the high-resolution performance counter, if one exists.

Module Module1 Declare Function QueryPerformanceCounter Lib "Kernel32" (ByRef X As Long) As Short Declare Function QueryPerformanceFrequency Lib "Kernel32" .

To measure when things are happening, I used the Windows API function QueryPerformanceCounter. This function on x86/Pentium platforms looks at a .

QueryPerformanceCounter reports that the time difference is 1.17 seconds. . . ( Ke)QueryPerformanceCounter >> >> One thing is sleeping less than exactly one .

You can use QueryPerformanceCounter(). You can get the performance counter frequency – i.e. ticks per second by calling QueryPerformanceFrequency(). .

19 Apr 2005 . Here's a bug I'd never heard about before: On certain hardware / OS combinations , QueryPerformanceCounter can return incorrect results if it .

6 posts - Last post: 21 Feb 2008Hi I am using a "Timing" class which performs timing measurements - and returns "tick" values to me. The tick values are however wil.

8 Mar 2010 . QueryPerformanceCounter() uses the PC's clock counter just as GetTickCount(), but it reads the current value of the countdown register in .

5 posts - 2 authors - Last post: 14 May 2009Hi all, I need to mesure time from one moment to another. Is there are any equivalent of WinAPI QueryPerformanceCounter()?

8 posts - 6 authors - Last post: 6 Jul 2009i suspect QueryPerformanceCounter or QueryPerformanceTimer to dont give exactly same result after some demo or program use it. .

Summary: This How To shows you how to create a managed wrapper class to .

I recently decided that I needed to change from using milliseconds to . # include <windows.h> double PCFreq = 0.0; __int64 CounterStart = 0; . lol, I just .

Retrieves the current value of the high-resolution performance counter.

The QueryPerformanceCounter function retrieves the current value of the high- resolution . Declare Function QueryPerformanceCounter Lib "kernel32" .

Microsoft recommend that we use QueryPerformanceCounter() for high-performance, high-accuracy timers on Windows. If you're on modern hardware, .

16 Mar 2007 . The QueryPerformanceCounter API. . static extern bool QueryPerformanceCounter( out long lpPerformanceCount); .

Use the QueryPerformanceCounter function to time events with a resolution of one . The elapsed time is returned through the QueryPerformanceCounter function.

50 postsHas anyone used QueryPerformanceFrequency and QueryPerformanceCounter API from VB. If yes could you please let me know how to do that. .

7 posts - 4 authors - Last post: 11 Feb 2009"QueryPerformanceCounter moving backwords" XBMC for Linux and XBMC Live Specific Support.

19 Apr 2008 . How to solve weirdness of the high resolution counter 26 04 2008 In a previous post, some issues on QueryPerformanceCounter() was discussed. .

4 posts - 2 authors - Last post: 22 Jan 2006Calculating FPS with QueryPerformanceCounter() Graphics and Multimedia.

11 posts - 4 authors - Last post: 4 Jan 2006I've seen the dual core QueryPerformanceCounter problem (different values for the two cores) mentioned, and Microsoft's page says this can .

High resolution timing is supported in Win32 by the QueryPerformanceCounter() and QueryPerformanceFrequency() API methods. This timer functions has much .

13 Aug 2010 . Aware: The difference between an older and a newer value of the QueryPerformanceCounter can be negative. (This can happen when the thread .

7 Jun 2006 . For reasons like these, Microsoft now recommends that you use QueryPerformanceCounter() to do high-precision timing. .

26 Aug 2000 . Information about the QueryPerformanceCounter function in the Windows API, geared towards the Visual Basic user.

21 Aug 2009 . Measuring elapsed time in C++ using QueryPerformanceCounter() . QueryPerformanceCounter(&c); return static_cast<unsigned int>( (c. .

4 posts - 3 authors - Last post: 31 Oct 2001Hi. Well maybe this belongs in 3 categories at once, or on a different site, but I thought I'd try my luck here.

17 Dec 2007 . This How To shows you how to create a managed wrapper class to encapsulate the Microsoft® Win32® functions QueryPerformanceCounter and .

10 posts - 8 authors - Last post: 24 JanQPX( N=0 ) { ; Wrapper for QueryPerformanceCounter()by SKAN | CD: . DllCall(" QueryPerformanceCounter",Int64P,Q), A:=A+Q-P, P:=Q, X:=X+1 .

30 Aug 2005 . Declare Function QueryPerformanceCounter Lib. . Times 100 increment operations by using QueryPerformanceCounter. .

The most precise method i know is QueryPerformanceCounter and . My bad,wher you have QueryPerformanceFrequency put QueryPerformanceCounter and vise versa. .

4 posts - 3 authors - Last post: 15 Sep 2008Using 'QueryPerformanceCounter()'?: Alright I am using the named function to time my main loop in my 3D engine, but I don't have a clue how .

5 Jul 2007 . QueryPerformanceCounter retrieves the current value of the high-resolution performance counter, but there is no guarantee that every call to .

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