faraphel/chrony
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

test: update hwclock unit test

Browse source
This commit is contained in:
Miroslav Lichvar 2018-08-21 16:50:58 +02:00
parent 419077e04b
commit cffc856b50
1 changed files with 41 additions and 39 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
test/unit/hwclock.c
View file

@ -27,19 +27,20 @@ test_unit(void)
struct timespec start_hw_ts, start_local_ts, hw_ts, local_ts, ts; struct timespec start_hw_ts, start_local_ts, hw_ts, local_ts, ts;
HCL_Instance clock; HCL_Instance clock;
double freq, jitter, interval, dj, sum; double freq, jitter, interval, dj, sum;
int i, j, count; int i, j, k, count;
LCL_Initialise(); LCL_Initialise();
clock = HCL_CreateInstance(0, 16, 1.0); for (i = 1; i <= 8; i++) {
clock = HCL_CreateInstance(random() % (1 << i), 1 << i, 1.0);
for (i = 0, count = 0, sum = 0.0; i < 2000; i++) { for (j = 0, count = 0, sum = 0.0; j < 100; j++) {
UTI_ZeroTimespec(&start_hw_ts); UTI_ZeroTimespec(&start_hw_ts);
UTI_ZeroTimespec(&start_local_ts); UTI_ZeroTimespec(&start_local_ts);
UTI_AddDoubleToTimespec(&start_hw_ts, TST_GetRandomDouble(0.0, 1e9), &start_hw_ts); UTI_AddDoubleToTimespec(&start_hw_ts, TST_GetRandomDouble(0.0, 1e9), &start_hw_ts);
UTI_AddDoubleToTimespec(&start_local_ts, TST_GetRandomDouble(0.0, 1e9), &start_local_ts); UTI_AddDoubleToTimespec(&start_local_ts, TST_GetRandomDouble(0.0, 1e9), &start_local_ts);
DEBUG_LOG("iteration %d", i); DEBUG_LOG("iteration %d", j);
freq = TST_GetRandomDouble(0.9, 1.1); freq = TST_GetRandomDouble(0.9, 1.1);
jitter = TST_GetRandomDouble(10.0e-9, 1000.0e-9); jitter = TST_GetRandomDouble(10.0e-9, 1000.0e-9);
@ -48,19 +49,19 @@ test_unit(void)
clock->n_samples = 0; clock->n_samples = 0;
clock->valid_coefs = 0; clock->valid_coefs = 0;
for (j = 0; j < 100; j++) { for (k = 0; k < 100; k++) {
UTI_AddDoubleToTimespec(&start_hw_ts, j * interval * freq, &hw_ts); UTI_AddDoubleToTimespec(&start_hw_ts, k * interval * freq, &hw_ts);
UTI_AddDoubleToTimespec(&start_local_ts, j * interval, &local_ts); UTI_AddDoubleToTimespec(&start_local_ts, k * interval, &local_ts);
if (HCL_CookTime(clock, &hw_ts, &ts, NULL)) { if (HCL_CookTime(clock, &hw_ts, &ts, NULL)) {
dj = fabs(UTI_DiffTimespecsToDouble(&ts, &local_ts) / jitter); dj = fabs(UTI_DiffTimespecsToDouble(&ts, &local_ts) / jitter);
DEBUG_LOG("delta/jitter %f", dj); DEBUG_LOG("delta/jitter %f", dj);
if (clock->n_samples >= 8) if (clock->n_samples >= clock->max_samples / 2)
sum += dj, count++; sum += dj, count++;
TEST_CHECK(clock->n_samples < 4 || dj <= 4.0); TEST_CHECK(clock->n_samples < 4 || dj <= 4.0);
TEST_CHECK(clock->n_samples < 8 || dj <= 3.0); TEST_CHECK(clock->n_samples < 8 || dj <= 3.0);
} }
UTI_AddDoubleToTimespec(&start_hw_ts, j * interval * freq + TST_GetRandomDouble(-jitter, jitter), &hw_ts); UTI_AddDoubleToTimespec(&start_hw_ts, k * interval * freq + TST_GetRandomDouble(-jitter, jitter), &hw_ts);
if (HCL_NeedsNewSample(clock, &local_ts)) if (HCL_NeedsNewSample(clock, &local_ts))
HCL_AccumulateSample(clock, &hw_ts, &local_ts, 2.0 * jitter); HCL_AccumulateSample(clock, &hw_ts, &local_ts, 2.0 * jitter);
@ -74,9 +75,10 @@ test_unit(void)
} }
} }
TEST_CHECK(sum / count < 0.4); TEST_CHECK(sum / count < 2.4 / sqrt(clock->max_samples));
HCL_DestroyInstance(clock); HCL_DestroyInstance(clock);
}
LCL_Finalise(); LCL_Finalise();
} }