Malloc.cpp #1

#include <stdio.h>

  #ifdef _WIN_
//#ifdef WINVER
//#ifdef _WINDOWS_
//#ifdef _WIN32_WINNT
///////////////////////
// Windows Timer Code
///////////////////////
#include <windows.h>
static LARGE_INTEGER liStart, liEnd, liTickPerSec;

inline void StartTimer(void) {
		QueryPerformanceCounter( &liStart);
}

inline double StopTimer(void) {
		QueryPerformanceCounter( &liEnd );
		QueryPerformanceFrequency( &liTickPerSec);
		DWORD dwTicks = (DWORD)( liEnd.LowPart - liStart.LowPart );
		return   (double)dwTicks/(double)liTickPerSec.LowPart; // Seconds
} 
#else
////////////////////
// AIX Timer Code
////////////////////
//#include <stdlib.h>
//#include <stdarg.h>
//#include <unistd.h>  /* for sleep test */
#include <stdlib.h>
#include <sys/time.h>

static struct timeval start, end;
static struct timezone zone;

inline void StartTimer(void) {
	gettimeofday( &start , &zone );
}

inline double StopTimer(void) {
	gettimeofday( &end , &zone );
	return ( ( (double)  end.tv_sec + (double)  end.tv_usec*1.0e-6 )
            -( (double)start.tv_sec + (double)start.tv_usec*1.0e-6 ) );// Seconds
}
#endif

void main() {
// Parameters to set
int iSize=4;			// start size
int iMaxSize= 1024*64;	// max size

double dMinTime = 1.0;

int iCount, iTimes, i;
double dSec, dSecPerMalloc, dMallocsPerSec;
void *v0, *v1, *v2, *v3, *v4, *v5, *v6, *v7, *v8, *v9;

//  StartTimer();
//  sleep(3);
//  dSec = StopTimer();
//  printf("dSec, %5.2f\n", dSec );

	while( iSize <= iMaxSize ) {
		iCount = 0;
		iTimes = 256;
		do {
			StartTimer();
			for( i = 0 ; i< iTimes ; i++) {
			//////////////////////////////
			// Do 100 Malloc/Free Pairs..
			//////////////////////////////
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			v0 = malloc( iSize );
			v1 = malloc( iSize );
			v2 = malloc( iSize );
			v3 = malloc( iSize );
			v4 = malloc( iSize );
			v5 = malloc( iSize );
			v6 = malloc( iSize );
			v7 = malloc( iSize );
			v8 = malloc( iSize );
			v9 = malloc( iSize );
			free( v0 );
			free( v1 );
			free( v2 );
			free( v3 );
			free( v4 );
			free( v5 );
			free( v6 );
			free( v7 );
			free( v8 );
			free( v9 );
			/***********************/
			}
			dSec = StopTimer();
			iCount += iTimes*100;
			iTimes += iTimes;    // double the number of reps for the next iteration
 			//printf("iSize, %6d, iCount, %5d, dMicroSec, %f\n",iSize,iCount, dMicroSec );
			
		}
		while ( dSec < dMinTime );

		dSecPerMalloc = dSec / (double)iCount;
		dMallocsPerSec = (double)iCount / dSec;
 		printf("iSize, %6d, iCount, %8d, dSec, %5.2f, Malloc/mSec, %10.0f\n",
				iSize,iCount, dSec, dMallocsPerSec );
		iSize += iSize;
	}
}