目标:管理一个 unsigned long tomBOLA[5][10000000];
$top 给我:
top - 14:05:35 up 4:06, 4 users, load average: 0.46, 0.48, 0.44
Tasks: 182 total, 1 running, 180 sleeping, 1 stopped, 0 zombie
Cpu(s): 14.4%us, 2.4%sy, 0.0%ni, 82.5%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 3092064k total, 1574460k used, 1517604k free, 168944k buffers
Swap: 1998840k total, 0k used, 1998840k free, 672756k cached
程序有一个大小为(5*10000000)*8bytes = 382MB的malloc,然后用0填充并读取存储在tomBOLA中的内容:
long int **tomBOLA;
if((tomBOLA=(long int **)malloc(5))==NULL){ /*MALLOC()*/
printf("\n\tMEMORY ERROR-1");
exit(1);
}
for(i=0;i<5;i++){
if((tomBOLA[i]=(long int *)malloc(10000000*sizeof(long int)))==NULL){
printf("\n\tMEMORY ERROR-2");
exit(1);
}
} …