#include <itpp/base/timing.h>
Inheritance diagram for itpp::CPU_Timer:
Public Member Functions | |
CPU_Timer () | |
Create a new timer. Sets the time to zero. | |
void | start (void) |
Start the timer. This does not set the time to zero. | |
double | stop (void) |
Stop the timer. Returns the elapsed time in seconds. | |
void | reset (double t=0.0) |
Sets the time to time t, which is zero by default. Stops the timer if it is running. | |
void | tic (void) |
Resets the timer and starts it. | |
double | toc (void) |
Returns the elapsed time since last tic(). | |
void | toc_print (void) |
Prints the elapsed time since last tic(). | |
double | get_time () const |
Returns the elapsed time. | |
Protected Member Functions | |
double | get_current_time () const |
Vitrual function that returns teh current time. | |
Protected Attributes | |
double | start_time |
The start time of the timer. | |
double | stop_time |
The stop time of the timer. | |
double | elapsed_time |
The ellapsed time from start to stop. | |
bool | running |
A bool that indicates if the timer is running or not. |
Measures the time spent by the CPU on the current process. If two processes are running concurrently, one real seconds equal 5 CPU seconds per process. The resolution is not very good (in the order of 0.01 seconds).
Usage: Define a time object:
CPU_Timer timer;
Actions: Reset:
timer.reset();
timer.start();
timer.stop();
elapsedtime = timer.get_time();
It is possible to get elapsed time without stopping the timer. Observe that it is also possible to use the macros "time.tic();" to reset and start clock and "time.toc();" stop and print the elapsed time.
Definition at line 105 of file timing.h.
itpp::CPU_Timer::CPU_Timer | ( | ) | [inline] |
double itpp::CPU_Timer::get_current_time | ( | ) | const [protected, virtual] |
Vitrual function that returns teh current time.
Implements itpp::Timer.
Definition at line 140 of file timing.cpp.
void itpp::Timer::start | ( | void | ) | [inherited] |
Start the timer. This does not set the time to zero.
Definition at line 87 of file timing.cpp.
References itpp::Timer::get_current_time(), itpp::Timer::running, and itpp::Timer::start_time.
Referenced by itpp::pause(), and itpp::Timer::tic().
double itpp::Timer::stop | ( | void | ) | [inherited] |
Stop the timer. Returns the elapsed time in seconds.
Definition at line 95 of file timing.cpp.
References itpp::Timer::elapsed_time, itpp::Timer::get_current_time(), itpp::Timer::running, itpp::Timer::start_time, and itpp::Timer::stop_time.
void itpp::Timer::reset | ( | double | t = 0.0 |
) | [inherited] |
Sets the time to time t, which is zero by default. Stops the timer if it is running.
Definition at line 106 of file timing.cpp.
References itpp::Timer::elapsed_time, itpp::Timer::running, itpp::Timer::start_time, and itpp::Timer::stop_time.
Referenced by itpp::Timer::tic(), and itpp::Timer::Timer().
void itpp::Timer::tic | ( | void | ) | [inherited] |
Resets the timer and starts it.
Definition at line 121 of file timing.cpp.
References itpp::Timer::reset(), and itpp::Timer::start().
Referenced by itpp::tic().
double itpp::Timer::toc | ( | void | ) | [inherited] |
Returns the elapsed time since last tic().
Definition at line 127 of file timing.cpp.
References itpp::Timer::get_time().
Referenced by itpp::toc().
void itpp::Timer::toc_print | ( | void | ) | [inherited] |
Prints the elapsed time since last tic().
Definition at line 132 of file timing.cpp.
References itpp::Timer::get_time().
Referenced by itpp::toc_print().
double itpp::Timer::get_time | ( | ) | const [inherited] |
Returns the elapsed time.
Definition at line 114 of file timing.cpp.
References itpp::Timer::elapsed_time, itpp::Timer::get_current_time(), itpp::Timer::running, and itpp::Timer::start_time.
Referenced by itpp::pause(), itpp::Timer::toc(), and itpp::Timer::toc_print().
double itpp::Timer::start_time [protected, inherited] |
The start time of the timer.
Definition at line 72 of file timing.h.
Referenced by itpp::Timer::get_time(), itpp::Timer::reset(), itpp::Timer::start(), and itpp::Timer::stop().
double itpp::Timer::stop_time [protected, inherited] |
The stop time of the timer.
Definition at line 74 of file timing.h.
Referenced by itpp::Timer::reset(), and itpp::Timer::stop().
double itpp::Timer::elapsed_time [protected, inherited] |
The ellapsed time from start to stop.
Definition at line 76 of file timing.h.
Referenced by itpp::Timer::get_time(), itpp::Timer::reset(), and itpp::Timer::stop().
bool itpp::Timer::running [protected, inherited] |
A bool that indicates if the timer is running or not.
Definition at line 78 of file timing.h.
Referenced by itpp::Timer::get_time(), itpp::Timer::reset(), itpp::Timer::start(), and itpp::Timer::stop().
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