iAPerformanceHelper.h File Reference

#include "iAguibase_export.h"
#include <string>

Classes
class	iAPerformanceHelper
	Class for debug output about start and end of an operation call start() to print start message call stop() to print stop message + time call time() in between to show lap times all optionally including memory usage. More...
class	iAPerformanceTimer
	Class for simple performance measurements. More...
class	iATimeAdder
	class for adding up intervals of time one example use case is if you have a long running procedure with many steps, but only want to measure the contribution of some of the steps; e.g.: do { operationsToMeasure (...) ... some other operations ... } Then you would write: iATimeAdder timer; do { timer.resume(); operationsToMeasure (...) timer.pause(); ... some other operations ... } std::cout << "Elapsed: " << timer.elapsed() << " seconds"; More...
class	iATimeGuard
	Simple performance helper class following RAII principle: Instantiate to start timer, destroy to stop timer prints to debug console. More...

Functions
iAguibase_API QString	formatDuration (double duration, bool showMS=true, bool shortNames=false)
	Format the given time in a human-readable format.
size_t	getCurrentRSS ()
	Helper method for getting the current memory usage.

Function Documentation

formatDuration()

iAguibase_API QString formatDuration	(	double	duration,
		bool	showMS = true,
		bool	shortNames = false
	)

Format the given time in a human-readable format.

Parameters

duration	the time to format (in seconds)
showMS	whether to show the milliseconds part
shortNames	if true, use short time span names (s, m, h, d), otherwise (default), use long names (second, minute, hour, day)

getCurrentRSS()

size_t getCurrentRSS

(

)

Helper method for getting the current memory usage.

Returns

the number of bytes currently in use by the application

Helper method for getting the current memory usage.