int main()
{
uint64_t mem_total_hw = 10;
uint64_t mem_total_sw = 0;
memtotal (mem_total_hw, mem_array, 10);
for (int i = 0; i < 10; i++) {
mem_total_sw += mem_array[i];
}
printf ("mem_total_hw = %d\n", mem_total_hw);
printf ("mem_total_sw = %d\n", mem_total_sw);
}
int main (int argc, char *argv[])
{
u8 *buf;
int fd;
ssize_t haveRead;
size_t toRead;
unsigned i;
unsigned bufsize;
unsigned n;
u64 size;
u64 rest;
u64 l;
drop_caches();
Option.file_size = 0;
Option.iterations = 1;
Option.loops = 1;
punyopt(argc, argv, myopt, "b:");
n = Option.iterations;
bufsize = 1 << Bufsize_log2;
buf = emalloc(bufsize);
size = Option.file_size;
if (!size) {
size = memtotal() / FRACTION_OF_MEMORY;
}
if (Hog_memory) {
hog_leave_memory(size / FRACTION_OF_FILE_SIZE);
}
fd = open(Option.file, O_RDWR | O_CREAT | O_TRUNC, 0666);
fill_file(fd, size);
for (l = 0; l < Option.loops; l++) {
startTimer();
for (i = 0; i < n; ++i) {
for (rest = size; rest; rest -= haveRead) {
if (rest > bufsize) {
toRead = bufsize;
} else {
toRead = rest;
}
haveRead = read(fd, buf, toRead);
if (haveRead != toRead) {
if (haveRead == -1) {
perror("read");
exit(1);
}
fprintf(stderr,
"toRead=%llu != haveRead=%lld\n",
(u64)toRead, (s64)haveRead);
exit(1);
}
}
lseek(fd, 0, 0);
}
stopTimer();
printf("size=%lld n=%d ", size, n);
prTimer();
printf("\t%6.4g MiB/s\n",
(double)(n * size) / get_avg() / MEBI);
}
close(fd);
unlink(Option.file);
return 0;
}
