get_timing
if ((i & 65535) == 0 && get_timing() > 1000000)
us1 = get_timing();
us2 = get_timing();
long long get_timing(void);
while (get_timing() < 5000000) {
us = get_timing();
us = get_timing();
(1024.0 * 1024.0 * get_timing()));
(1024.0 * 1024.0 * get_timing()));