rdtsc
uint64_t rdtsc(void);
uint64_t rdtsc(void);
tevbuf[i++] = rdtsc();
rdtsc(startlow,starthigh);
rdtsc(endlow,endhigh);
rdtsc(clocks_low, clocks_high);
v = rdtsc();
v = rdtsc() - v;
uint64_t rdtsc(void);
uint64_t tsc = rdtsc();
start = rdtsc();
end = rdtsc();
start = rdtsc();
end = rdtsc();
end = rdtsc();
uint64_t tsc = rdtsc();
const uint64_t tsc_start = rdtsc();
td->data[i] = rdtsc();
const uint64_t tsc_start = rdtsc();
td->data[i] = rdtsc();
const uint64_t tsc_start = rdtsc();
td->data[i] = rdtsc();
rdtsc; \
rdtsc; \