MB
di->ram.MB = 4;
di->ram.MB = 4;
int MB;
#define TESTSIZE (8*MB)
#define LOOPSIZE (256*MB)
mb = atol(argv[1])*MB;
LOOPSIZE/MB);
(double)(LOOPSIZE/MB)/(double)(stop-start)*(double)CLK_TCK);
LOOPSIZE/MB);
(double)(LOOPSIZE/MB)/(double)(stop-start)*(double)CLK_TCK);