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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <ndb_global.h>
long long getMilli();
long long getMicro();
void malloctest(int loopcount, int memsize, int touch);
void freetest(int loopcount, int memsize);
void mmaptest(int loopcount, int memsize, int touch);
void unmaptest(int loopcount, int memsize);
main(int argc, char ** argv)
{
int loopcount;
int memsize;
if(argc < 4) {
printf("Usage: memtest X loopcount memsize(MB)\n");
printf("where X = \n");
printf("1 : malloc test \n");
printf("2 : mmap test \n");
printf("3 : malloc test + touch pages\n");
printf("4 : mmap test + touch pages\n");
printf("5 : malloc/free test \n");
printf("6 : mmap/munmap test \n");
printf("loopcount - number of loops\n");
printf("memsize - memory segment size to allocate in MB.\n");
exit(1);
}
loopcount = atoi(argv[2]);
memsize = atoi(argv[3]);
switch(atoi(argv[1])) {
case 1: malloctest(loopcount, memsize , 0 );
break;
case 2: mmaptest(loopcount, memsize,0);
break;
case 3: malloctest(loopcount, memsize,1);
break;
case 4: mmaptest(loopcount, memsize,1);
break;
case 5: freetest(loopcount, memsize);
break;
case 6: unmaptest(loopcount, memsize);
break;
default:
break;
}
}
long long getMilli() {
struct timeval tick_time;
gettimeofday(&tick_time, 0);
return
((long long)tick_time.tv_sec) * ((long long)1000) +
((long long)tick_time.tv_usec) / ((long long)1000);
}
long long getMicro(){
struct timeval tick_time;
int res = gettimeofday(&tick_time, 0);
long long secs = tick_time.tv_sec;
long long micros = tick_time.tv_usec;
micros = secs*1000000+micros;
return micros;
}
void malloctest(int loopcount, int memsize, int touch) {
long long start=0;
int total=0;
int i=0, j=0;
int size=memsize*1024*1024; /*bytes*/;
float mean;
char * ptr =0;
printf("Staring malloctest ");
if(touch)
printf("with touch\n");
else
printf("\n");
start=getMicro();
for(i=0; i<loopcount; i++){
ptr=(char *)malloc((size_t)(size));
if(ptr==0) {
printf("failed to malloc!\n");
return;
}
if(touch) {
for(j=0; j<size; j=j+4096)
ptr[j]=1;
}
}
total=(int)(getMicro()-start);
mean=(float)((float)total/(float)loopcount);
printf("Total time malloc %d bytes: %2.3f microsecs loopcount %d touch %d \n",
size, mean,loopcount, touch);
}
void mmaptest(int loopcount, int memsize, int touch) {
long long start=0;
int total=0;
int i=0, j=0;
char * ptr;
int size=memsize*1024*1024; /*bytes*/;
float mean;
printf("Staring mmaptest ");
if(touch)
printf("with touch \n");
else
printf("\n");
start=getMicro();
for(i=0; i<loopcount; i++){
ptr = mmap(0,
size,
PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS,
0,
0);
if(ptr<0) {
printf("failed to mmap!\n");
return;
}
if(touch) {
for(j=0; j<size; j=j+4096)
ptr[j]=1;
}
}
total=(int)(getMicro()-start);
mean=(float)((float)total/(float)loopcount);
printf("Total time mmap %d bytes: %2.3f microsecs \n",size, mean);
}
void unmaptest(loopcount, memsize)
{
long long start=0;
int total=0;
int i=0, j=0;
char * ptr;
int size=memsize*1024*1024; /*bytes*/;
float mean;
printf("Staring munmap test (loopcount = 1 no matter what you prev. set)\n");
loopcount = 1;
for(i=0; i<loopcount; i++){
ptr =(char*) mmap(0,
size,
PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS,
0,
0);
if(ptr<0) {
printf("failed to mmap!\n");
return;
}
for(j=0; j<size; j=j+1)
ptr[j]='1';
start=getMicro();
if(munmap(ptr, size)<0) {
printf("failed to munmap!\n");
return;
}
total=(int)(getMicro()-start);
/*
for(j=8192; j<size; j=j+4096) {
*(ptr+j)='1';
}
for(j=0; j<4096; j=j+4096) {
*(ptr+j)='1';
}
*/
}
mean=(float)((float)total/(float)loopcount);
printf("Total time unmap %d bytes: %2.3f microsecs \n",size, mean);
}
void freetest(int loopcount, int memsize) {
long long start=0;
int total=0;
int i=0, j=0;
int size=memsize*1024*1024; /*bytes*/;
float mean;
char * ptr =0;
loopcount = 1;
printf("Staring free test (loopcount = 1 no matter what you prev. set)\n");
for(i=0; i<loopcount; i++){
ptr=(char*)malloc((size_t)(size));
if(ptr==0) {
printf("failed to malloc!\n");
return;
}
for(j=0; j<size; j=j+4096)
ptr[j]='1';
start=getMicro();
free(ptr);
total=(int)(getMicro()-start);
}
mean=(float)((float)total/(float)loopcount);
printf("Total time free %d bytes: %2.3f microsecs loopcount %d \n",
size, mean,loopcount);
}
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