Tools.h++ Class Reference

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©Copyright 1996 Rogue Wave Software
RWBench
Synopsis●
Description●
Persistence●
Example●
Public Constructors●
Public Member Functions●
Synopsis
#include <rw/bench.h>
(Abstract base class)
Description
This is an abstract class that can automate the process of benchmarking a piece of code. To use it, derive a class from
RWBench, including a definition for the virtual function doLoop(unsigned long N). This function should perform N
operations of the type that you are trying to benchmark. RWBench will call doLoop() over and over again until a preset
amount of time has elapsed. It will then sum the total number of operations performed.
To run, construct an instance of your derived class and then call go(). Then call report() to get a standard summary. For many
compilers, this summary will automatically include the compiler type and memory model. You can call ops(), outerLoops(),
etc. for more detail.
If you wish to correct for overhead, then provide an idleLoop() function which should do all non-benchmark-related
calculations.
Persistence
None
Example
This example benchmarks the time required to return a hash value for a Rogue Wave string versus a Borland string.
#include <rw/bench.h> /* Benchmark software */
#include <rw/cstring.h> /* Rogue Wave string class */
#include <stdlib.h>
#include <iostream.h>
#include <rw/ctoken.h>
#include <rw/regexp.h>
// The string to be hashed:
const char* cs = "A multi-character string with lots of words in it to be parsed out
and searched for.";
class TestBrute : public RWBench {
public: