Test ODP time keeping accuracy against system time.
Signed-off-by: Petri Savolainen <petri.savolai...@linaro.org>
---
test/common_plat/validation/api/time/time.c | 72 +++++++++++++++++++++++------
1 file changed, 57 insertions(+), 15 deletions(-)
diff --git a/test/common_plat/validation/api/time/time.c
b/test/common_plat/validation/api/time/time.c
index aee7ccef..90e0d301 100644
--- a/test/common_plat/validation/api/time/time.c
+++ b/test/common_plat/validation/api/time/time.c
@@ -7,6 +7,7 @@
#include <odp_api.h>
#include "odp_cunit_common.h"
#include "time_test.h"
+#include <time.h>
#define BUSY_LOOP_CNT 30000000 /* used for t > min resolution */
#define BUSY_LOOP_CNT_LONG 6000000000 /* used for t > 4 sec */
@@ -140,25 +141,25 @@ void time_test_monotony(void)
CU_ASSERT(ns3 > ns2);
}
-static void time_test_cmp(time_cb time, time_from_ns_cb time_from_ns)
+static void time_test_cmp(time_cb time_cur, time_from_ns_cb time_from_ns)
{
/* volatile to stop optimization of busy loop */
volatile int count = 0;
odp_time_t t1, t2, t3;
- t1 = time();
+ t1 = time_cur();
while (count < BUSY_LOOP_CNT) {
count++;
};
- t2 = time();
+ t2 = time_cur();
while (count < BUSY_LOOP_CNT * 2) {
count++;
};
- t3 = time();
+ t3 = time_cur();
CU_ASSERT(odp_time_cmp(t2, t1) > 0);
CU_ASSERT(odp_time_cmp(t3, t2) > 0);
@@ -191,7 +192,7 @@ void time_test_global_cmp(void)
}
/* check that a time difference gives a reasonable result */
-static void time_test_diff(time_cb time,
+static void time_test_diff(time_cb time_cur,
time_from_ns_cb time_from_ns,
uint64_t res)
{
@@ -202,13 +203,13 @@ static void time_test_diff(time_cb time,
uint64_t upper_limit, lower_limit;
/* test timestamp diff */
- t1 = time();
+ t1 = time_cur();
while (count < BUSY_LOOP_CNT) {
count++;
};
- t2 = time();
+ t2 = time_cur();
CU_ASSERT(odp_time_cmp(t2, t1) > 0);
diff = odp_time_diff(t2, t1);
@@ -268,7 +269,7 @@ void time_test_global_diff(void)
}
/* check that a time sum gives a reasonable result */
-static void time_test_sum(time_cb time,
+static void time_test_sum(time_cb time_cur,
time_from_ns_cb time_from_ns,
uint64_t res)
{
@@ -277,7 +278,7 @@ static void time_test_sum(time_cb time,
uint64_t upper_limit, lower_limit;
/* sum timestamp and interval */
- t1 = time();
+ t1 = time_cur();
ns2 = 103;
t2 = time_from_ns(ns2);
ns1 = odp_time_to_ns(t1);
@@ -319,20 +320,20 @@ void time_test_global_sum(void)
time_test_sum(odp_time_global, odp_time_global_from_ns, global_res);
}
-static void time_test_wait_until(time_cb time, time_from_ns_cb time_from_ns)
+static void time_test_wait_until(time_cb time_cur, time_from_ns_cb
time_from_ns)
{
int i;
odp_time_t lower_limit, upper_limit;
odp_time_t start_time, end_time, wait;
odp_time_t second = time_from_ns(ODP_TIME_SEC_IN_NS);
- start_time = time();
+ start_time = time_cur();
wait = start_time;
for (i = 0; i < WAIT_SECONDS; i++) {
wait = odp_time_sum(wait, second);
odp_time_wait_until(wait);
}
- end_time = time();
+ end_time = time_cur();
wait = odp_time_diff(end_time, start_time);
lower_limit = time_from_ns(WAIT_SECONDS * ODP_TIME_SEC_IN_NS -
@@ -398,13 +399,13 @@ void time_test_wait_ns(void)
}
}
-static void time_test_to_u64(time_cb time)
+static void time_test_to_u64(time_cb time_cur)
{
volatile int count = 0;
uint64_t val1, val2;
odp_time_t t1, t2;
- t1 = time();
+ t1 = time_cur();
val1 = odp_time_to_u64(t1);
CU_ASSERT(val1 > 0);
@@ -413,7 +414,7 @@ static void time_test_to_u64(time_cb time)
count++;
};
- t2 = time();
+ t2 = time_cur();
val2 = odp_time_to_u64(t2);
CU_ASSERT(val2 > 0);
@@ -433,6 +434,45 @@ void time_test_global_to_u64(void)
time_test_to_u64(odp_time_global);
}
+static void time_test_accuracy(time_cb time_cur, time_from_ns_cb time_from_ns)
+{
+ int i;
+ odp_time_t t1, t2, wait, diff;
+ clock_t c1, c2;
+ double sec_t, sec_c;
+ odp_time_t sec = time_from_ns(ODP_TIME_SEC_IN_NS);
+
+ c1 = clock();
+ t1 = time_cur();
+
+ wait = odp_time_sum(t1, sec);
+ for (i = 0; i < 5; i++) {
+ odp_time_wait_until(wait);
+ wait = odp_time_sum(wait, sec);
+ }
+
+ t2 = time_cur();
+ c2 = clock();
+
+ diff = odp_time_diff(t2, t1);
+ sec_t = ((double)odp_time_to_ns(diff)) / ODP_TIME_SEC_IN_NS;
+ sec_c = ((double)(c2 - c1)) / CLOCKS_PER_SEC;
+
+ /* Check that ODP time is within +-5% of system time */
+ CU_ASSERT(sec_t < sec_c * 1.05);
+ CU_ASSERT(sec_t > sec_c * 0.95);
+}
+
+static void time_test_local_accuracy(void)
+{
+ time_test_accuracy(odp_time_local, odp_time_local_from_ns);
+}
+
+static void time_test_global_accuracy(void)
+{
+ time_test_accuracy(odp_time_global, odp_time_global_from_ns);
+}
+
odp_testinfo_t time_suite_time[] = {
ODP_TEST_INFO(time_test_constants),
ODP_TEST_INFO(time_test_local_res),
@@ -443,6 +483,7 @@ odp_testinfo_t time_suite_time[] = {
ODP_TEST_INFO(time_test_local_sum),
ODP_TEST_INFO(time_test_local_wait_until),
ODP_TEST_INFO(time_test_wait_ns),
+ ODP_TEST_INFO(time_test_local_accuracy),
ODP_TEST_INFO(time_test_local_to_u64),
ODP_TEST_INFO(time_test_global_res),
ODP_TEST_INFO(time_test_global_conversion),
@@ -450,6 +491,7 @@ odp_testinfo_t time_suite_time[] = {
ODP_TEST_INFO(time_test_global_diff),
ODP_TEST_INFO(time_test_global_sum),
ODP_TEST_INFO(time_test_global_wait_until),
+ ODP_TEST_INFO(time_test_global_accuracy),
ODP_TEST_INFO(time_test_global_to_u64),
ODP_TEST_INFO_NULL
};
--
2.11.0
