JUCE: PerformanceCounter Class Reference

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Classes | Public Member Functions | List of all members
PerformanceCounter Class Reference
juce_core » time

A timer for measuring performance of code and dumping the results to a file. More...

`#include <juce_PerformanceCounter.h>`

## Classes
struct | Statistics
| Holds the current statistics. More...

## Public Member Functions
| PerformanceCounter (const String &counterName, int runsPerPrintout=100, const File &loggingFile=File())
| Creates a PerformanceCounter object.
| ~PerformanceCounter ()
| Destructor.
void | start () noexcept
| Starts timing.
bool | stop ()
| Stops timing and prints out the results.
void | printStatistics ()
| Dumps the current metrics to the debugger output and to a file.
Statistics | getStatisticsAndReset ()
| Returns a copy of the current stats, and resets the internal counter.

## Detailed Description

A timer for measuring performance of code and dumping the results to a file.

e.g.

PerformanceCounter pc ("fish", 50, "/temp/myfishlog.txt");
for (;;)
{
pc.start();
doSomethingFishy();
pc.stop();
}
PerformanceCounter
A timer for measuring performance of code and dumping the results to a file.
Definition juce_PerformanceCounter.h:51

In this example, the time of each period between calling start/stop will be measured and averaged over 50 runs, and the results printed to a file every 50 times round the loop.

## Constructor & Destructor Documentation

## ◆ PerformanceCounter()

PerformanceCounter::PerformanceCounter | ( | const String & | counterName,
|  | int | runsPerPrintout = 100,
|  | const File & | loggingFile = File() )

Creates a PerformanceCounter object.

Parameters

  counterName | the name used when printing out the statistics
  runsPerPrintout | the number of start/stop iterations before calling printStatistics()
  loggingFile | a file to dump the results to - if this is File(), the results are just written to the debugger output

## ◆ ~PerformanceCounter()

PerformanceCounter::~PerformanceCounter | ( |  | ) |

Destructor.

## Member Function Documentation

## ◆ start()

void PerformanceCounter::start | ( |  | ) |
| noexcept

Starts timing.

See also
  stop

## ◆ stop()

bool PerformanceCounter::stop | ( |  | ) |

Stops timing and prints out the results.

The number of iterations before doing a printout of the results is set in the constructor.

See also
  start

## ◆ printStatistics()

void PerformanceCounter::printStatistics | ( |  | ) |

Dumps the current metrics to the debugger output and to a file.

As well as using Logger::outputDebugString to print the results, this will write then to the file specified in the constructor (if this was valid).

## ◆ getStatisticsAndReset()

Statistics PerformanceCounter::getStatisticsAndReset | ( |  | ) |

Returns a copy of the current stats, and resets the internal counter.

The documentation for this class was generated from the following file:

- juce_PerformanceCounter.h