High Accuracy Timer for Windows

High-resolution performance counter

Description

Uses the windows high-resolution performance counter to get the time which exceeds one microsecond accuracy.

time = hat;
% do some calculations
diff = hat - time;

• MATLAB release: MATLAB 6.5.1 (R13SP1)
• Other requirements: Windows, Visual Studio C++ with Windows SDK

[Haiwei Qiu]

nice C program. Solved Matlab unaccurate timing problems.

[M Fridman]

It appears that the timer call has significant overhead itself, so realize that by using it you may add to your execution time and skew some measurements.

[Quentin]

I need help getting this code to work. I have Visual Basic 2008 Express Edition installed on my PC but I'm not sure how I initiate all of this with matlab.

Thanks for any help.

[Quentin]

 

[Holger Amort]

I think the counter has to be calibrated, although the difference is usually very small.

[Maya]

hey, this timer really helped me out, so, since inline syntax is kind of being done away with, could you provide another syntax for compiling the C file? tnx!