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Timing macros for runtime measurements
<b>\#include</b> \<vigra/timing.hxx\>

These macros allow to perform execution speed measurements. Results are reported
in <i>milliseconds</i>.
However, note that timings below 1 msec are generally subject to round-off errors. 
Under LINUX, you can \#define VIGRA_HIRES_TIMING to get better
accuracy, but this requires linking against librt.

Basic usage:

void time_it()
{
... code to be timed
... untimed code
... other code to be timed
}

Instead of TOC, which outputs the time difference to std::cerr, you may use TOCN (the time difference in msec as a double) or TOCS (the time difference as a std::string).

Alternatively, you can perform nested timing like so:

void time_it()
{
... code to be timed
... nested code to be timed
TOC print time for nested code
... more code to be timed
TOC print total time
}

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

html generated using doxygen and Python
vigra 1.9.0 (Sat Oct 5 2013)