PERF_SCALAR_MUL
for (i = 0; i < PERF_SCALAR_MUL; i++) {
(double)(t2 - t1) / (double)(PERF_SCALAR_MUL * 1000ULL));
for (i = 0; i < PERF_SCALAR_MUL; i++) {
(double)(t2 - t1) / (double)(PERF_SCALAR_MUL * 1000ULL));