void ssh_busy_wait_usec(const SshUInt64 time_us)
{
SshTimeMeasure timer;
timer = ssh_time_measure_allocate();
ssh_time_measure_start(timer);
while (ssh_time_measure_stamp(timer,
SSH_TIME_GRANULARITY_MICROSECOND) <
time_us)
/*NOTHING*/;
ssh_time_measure_stop(timer);
ssh_time_measure_free(timer);
}
int main()
{
SshTimeMeasure total_timer;
SshTimeMeasure timer_1;
SshTimeMeasure timer_2;
SshTimeMeasure timer_3;
SshTimeMeasure timer_4;
SshTimeMeasure timer_5;
static struct SshTimeMeasureRec timer_6_rec = SSH_TIME_MEASURE_INITIALIZER;
SshTimeMeasure timer_6;
int i;
double rv = 0.0;
int ev = 0;
#ifdef HAVE_GETTIMEOFDAY
struct timeval tv;
#endif /* HAVE_GETTIMEOFDAY */
SshUInt64 seconds;
SshUInt32 nanoseconds;
total_timer = ssh_time_measure_allocate();
timer_1 = ssh_time_measure_allocate();
timer_2 = ssh_time_measure_allocate();
timer_3 = ssh_time_measure_allocate();
timer_4 = ssh_time_measure_allocate();
timer_5 = ssh_time_measure_allocate();
timer_6 = &timer_6_rec;
if (ssh_time_measure_get(timer_5, SSH_TIME_GRANULARITY_NANOSECOND) != 0)
{
ssh_warning("Weird initial stamp value.\n");
ev++;
}
if (ssh_time_measure_get(timer_6, SSH_TIME_GRANULARITY_NANOSECOND) != 0)
{
ssh_warning("Weird initial (static) stamp value.\n");
ev++;
}
rv = (double)ssh_time_measure_get(total_timer, SSH_TIME_GRANULARITY_SECOND);
if ((rv < 0.0) || (rv > 0.0))
{
ssh_warning("Weird initial value.\n");
ev++;
}
ssh_time_measure_granularity(&seconds, &nanoseconds);
if ((seconds == 0) && (nanoseconds == 0))
{
ssh_warning("Weird granularity.\n");
ev++;
}
else
{
printf("granularity is %lu sec %lu nsec\n",
(unsigned long)seconds,
(unsigned long)nanoseconds);
}
START(total_timer);
START(timer_1);
START(timer_3);
START(timer_4);
START(timer_5);
STAMP(total_timer);
printf("testing stamps\n");
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
CHECKNANOSTAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
CHECKNANOSTAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
CHECKNANOSTAMP(timer_1);
USLEEP(1000000);
NANOSTAMP(timer_1);
MICROSTAMP(timer_1);
MILLISTAMP(timer_1);
STAMP(timer_1);
CHECKNANOSTAMP(timer_1);
USLEEP(2000000);
STAMP(total_timer);
SET(timer_5, 12345, 12345678);
INTERMEDIATE(timer_5);
if ((rv < 12345.0) || (rv > 12350.0))
{
ssh_warning("Weird intermediate after running set.\n");
ev++;
}
INTERMEDIATE(timer_1);
if (rv < 1.0)
{
ssh_warning("Weird intermediate.\n");
ev++;
}
STOP(timer_3);
if (rv < 1.0)
{
ssh_warning("Weird stop value.\n");
ev++;
}
START(timer_2);
RESET(timer_4);
USLEEP(3000000);
STAMP(total_timer);
INTERMEDIATE(timer_2);
INTERMEDIATE(timer_5);
START(timer_3);
if (rv < 1.0)
{
ssh_warning("Weird restart value.\n");
ev++;
}
RESET(timer_4);
STOP(timer_1);
USLEEP(4000000);
STAMP(total_timer);
STOP(timer_5);
#ifdef SSHUINT64_IS_64BITS
printf("Setting timer_5 to big value.\n");
ssh_time_measure_set_value(timer_5,
((SshUInt64)0xffffffff) * ((SshUInt64)30),
987654321);
INTERMEDIATE(timer_5);
if ((rv < 128849018000.0) || (rv > 128849019000.0))
{
ssh_warning("Weird intermediate after stopped set.\n");
ev++;
}
#else
SET(timer_5, 1234567890, 987654321);
INTERMEDIATE(timer_5);
if ((rv < 1234567890.0) || (rv > 1234567900.0))
{
ssh_warning("Weird intermediate after stopped set.\n");
ev++;
}
#endif
STOP(timer_4);
STOP(timer_3);
STOP(timer_2);
STOP(timer_1);
#define TIMESTAMPS 1000000
ssh_time_measure_reset(timer_1);
ssh_time_measure_reset(timer_2);
printf("\nGenerating %d timestamps.\n", TIMESTAMPS);
START(timer_2);
START(timer_1);
for (i = 1; i < TIMESTAMPS; i++)
{
ssh_time_measure_stamp(timer_2, SSH_TIME_GRANULARITY_MICROSECOND);
}
STOP(timer_1);
STOP(timer_2);
printf("Time elapsed %.12f seconds (%.12f seconds/timestamp",
(double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND),
(double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) / (double)TIMESTAMPS);
if ((double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) > 0.0)
printf(", %d timestamps/second",
(int)((double)TIMESTAMPS / (double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND)));
printf(")\n");
ssh_time_measure_reset(timer_3);
ssh_time_measure_reset(timer_4);
printf("\nFor reference generating %d timestamps with time(3).\n",
TIMESTAMPS);
START(timer_4);
START(timer_3);
for (i = 1; i < TIMESTAMPS; i++)
{
ssh_time();
}
STOP(timer_3);
STOP(timer_4);
printf("Time elapsed %.12f seconds (%.12f seconds/timestamp",
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND),
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) / (double)TIMESTAMPS);
if ((double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) > 0.0)
printf(", %d timestamps/second",
(int)((double)TIMESTAMPS / (double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND)));
printf(")\n");
if (((double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) > 0.0) &&
((double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) > 0.0))
printf("Using time(3) is %2.1f%% faster than ssh_..._stamp.\n",
(((double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) -
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND)) /
(double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND)) * 100.0);
#ifdef HAVE_GETTIMEOFDAY
ssh_time_measure_reset(timer_3);
ssh_time_measure_reset(timer_4);
printf("\nFor reference generating %d timestamps with gettimeofday.\n",
TIMESTAMPS);
START(timer_4);
START(timer_3);
for (i = 1; i < TIMESTAMPS; i++)
{
gettimeofday(&tv, NULL);
}
STOP(timer_3);
STOP(timer_4);
printf("Time elapsed %.12f seconds (%.12f seconds/timestamp",
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND),
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) / (double)TIMESTAMPS);
if ((double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) > 0.0)
printf(", %d timestamps/second",
(int)((double)TIMESTAMPS / (double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND)));
printf(")\n");
if (((double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) > 0.0) &&
((double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND) > 0.0))
printf("Using gettimeofday(3) is %2.1f%% faster than ssh_..._stamp.\n",
(((double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND) -
(double)ssh_time_measure_get(timer_3, SSH_TIME_GRANULARITY_SECOND)) /
(double)ssh_time_measure_get(timer_1, SSH_TIME_GRANULARITY_SECOND)) * 100.0);
#endif /* HAVE_GETTIMEOFDAY */
printf("making start stop test. timers are silently started and stopped.\n");
printf("timer_3 runs while timer_4 is started and stopped in loop.\n");
ssh_time_measure_stop(timer_3);
ssh_time_measure_stop(timer_4);
ssh_time_measure_reset(timer_3);
ssh_time_measure_reset(timer_4);
ssh_time_measure_start(timer_3);
for (i = 0; i < 1000000; i++)
{
ssh_time_measure_start(timer_4);
ssh_time_measure_stop(timer_4);
}
ssh_time_measure_stop(timer_3);
INTERMEDIATE(timer_4);
INTERMEDIATE(timer_3);
STOP(total_timer);
GET_INT(timer_1);
INTERMEDIATE(timer_1);
GET_INT(timer_2);
INTERMEDIATE(timer_2);
GET_INT(timer_3);
INTERMEDIATE(timer_3);
GET_INT(timer_4);
INTERMEDIATE(timer_4);
GET_INT(timer_5);
INTERMEDIATE(timer_5);
GET_INT(total_timer);
INTERMEDIATE(total_timer);
printf("Testing granularities\n");
GET_NANOSECONDS(total_timer);
GET_MICROSECONDS(total_timer);
GET_MILLISECONDS(total_timer);
GET_SECONDS(total_timer);
GET_MINUTES(total_timer);
GET_HOURS(total_timer);
GET_DAYS(total_timer);
GET_WEEKS(total_timer);
GET_MONTHS(total_timer);
GET_YEARS(total_timer);
GET_NANOSECONDS(timer_5);
GET_MICROSECONDS(timer_5);
GET_MILLISECONDS(timer_5);
GET_SECONDS(timer_5);
GET_MINUTES(timer_5);
GET_HOURS(timer_5);
GET_DAYS(timer_5);
GET_WEEKS(timer_5);
GET_MONTHS(timer_5);
GET_MONTHS_2(timer_5);
GET_YEARS(timer_5);
GET_YEARS_2(timer_5);
GET_YEARS_3(timer_5);
ssh_time_measure_free(timer_5);
ssh_time_measure_free(timer_4);
ssh_time_measure_free(timer_3);
ssh_time_measure_free(timer_2);
ssh_time_measure_free(timer_1);
ssh_time_measure_free(total_timer);
exit(ev);
}
