# Pastebin Pp0x1M56
    int32_t numerator = -1;
    int32_t denominator = -1;
    bool success = glXGetMscRateOML(GLWin.dpy, GLWin.win, &numerator, &denominator);
    double hz = ((1.0*numerator) / (1.0*denominator));
    printf("Display rate: %s %d/%d == %fHz frame_time (microseconds): %f\n", btoa(success), numerator, denominator, hz, (1.0/hz)*1e6);