ut_chrono_t Class Reference

A "chronometer" used to clock snippets of code. More...

#include <ut0dbg.h>

Public Member Functions
	ut_chrono_t (const char *name)
	Constructor. More...
void	reset ()
	Resets the chrono (records the current time in it). More...
void	show ()
	Shows the time elapsed and usage statistics since the last reset. More...
void	end ()
	Cause the timings not to be printed from the destructor. More...
	~ut_chrono_t ()
	Destructor. More...

Private Attributes
const char *	m_name
	Name of this chronometer. More...
bool	m_show_from_destructor
	True if the current timings should be printed by the destructor. More...
struct rusage	m_ru
	getrusage() result as of the last reset(). More...
struct timeval	m_tv
	gettimeofday() result as of the last reset(). More...

Detailed Description

A "chronometer" used to clock snippets of code.

Example usage: ut_chrono_t ch("this loop"); for (;;) { ... } ch.show(); would print the timings of the for() loop, prefixed with "this loop:"

Constructor & Destructor Documentation

ut_chrono_t()

ut_chrono_t::ut_chrono_t ( const char *  name )

inline

Constructor.

Parameters

[in]

name

chrono's name, used when showing the values

~ut_chrono_t()

ut_chrono_t::~ut_chrono_t ( )

inline

Destructor.

Member Function Documentation

end()

void ut_chrono_t::end ( void  )

inline

Cause the timings not to be printed from the destructor.

reset()

void ut_chrono_t::reset ( void  )

inline

Resets the chrono (records the current time in it).

show()

void ut_chrono_t::show ( )

inline

Shows the time elapsed and usage statistics since the last reset.

Member Data Documentation

m_name

const char* ut_chrono_t::m_name

private

Name of this chronometer.

m_ru

struct rusage ut_chrono_t::m_ru

private

getrusage() result as of the last reset().

m_show_from_destructor

bool ut_chrono_t::m_show_from_destructor

private

True if the current timings should be printed by the destructor.

m_tv

struct timeval ut_chrono_t::m_tv

private

gettimeofday() result as of the last reset().

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

• storage/innobase/include/ut0dbg.h