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Intel Threading Building Blocks
book

Intel Threading Building Blocks

by James Reinders
July 2007
Intermediate to advanced content levelIntermediate to advanced
332 pages
10h 4m
English
O'Reilly Media, Inc.
Content preview from Intel Threading Building Blocks

Name

tick_count Class — Class for computing wall-clock times.

Synopsis

#include "tbb/tick_count.h"

class tick_count;

Description

A tick_count is an absolute timestamp. One tick_count object may be subtracted from another to compute a relative time tick_count::interval_t, which can be converted to seconds.

Example

	#include "tbb/tick_count.h"
	using namespace tbb;

	void Foo() {
	    tick_count t0 = tick_count::now();
	    ...action being timed...
	    tick_count t1 = tick_count::now();
	    printf("time for action = %g seconds\n", (t1-t0).seconds() );
	}

Members

	namespace tbb {

	    class tick_count {
	    public:
	        class interval_t;
	        static tick_count now();
	    };

	    tick_count::interval_t operator-( const tick_count& t1,
	                                      const tick_count& t0 );
	} // tbb
static tick_count tick_count::now()

Returns: current wall-clock timestamp.

tick_count::interval_t operator-;(const tick_count&t1, cons ttick_count& t0)

Returns: relative time that t1 occurred after t0.

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Publisher Resources

ISBN: 9780596514808Errata Page