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tests/ztimer_overhead: update to use signed ztimer_overhead()

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This commit is contained in:
Kaspar Schleiser 2020-03-04 11:09:16 +01:00
parent b45f4236de
commit 90ca4f3b42
2 changed files with 9 additions and 6 deletions
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13
tests/ztimer_overhead/main.c
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@ -20,6 +20,7 @@
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <inttypes.h> #include <inttypes.h>
#include "ztimer.h" #include "ztimer.h"
@ -32,16 +33,17 @@ int main(void)
{ {
uint32_t total = 0; uint32_t total = 0;
uint16_t min = 0xFFFF; int32_t min = INT32_MAX;
uint16_t max = 0; int32_t max = INT32_MIN;
/* unset configured adjustment */ /* unset configured adjustment */
/* ZTIMER_USEC->adjust = 0; */ /* ZTIMER_USEC->adjust = 0; */
printf("ZTIMER_USEC->adjust = %" PRIu32 "\n", ZTIMER_USEC->adjust);
unsigned n = SAMPLES; unsigned n = SAMPLES;
while (n--) { while (n--) {
unsigned overhead = ztimer_overhead(ZTIMER_USEC, BASE); int32_t overhead = ztimer_overhead(ZTIMER_USEC, BASE);
total += overhead; total += labs(overhead);
if (overhead < min) { if (overhead < min) {
min = overhead; min = overhead;
} }
@ -50,7 +52,8 @@ int main(void)
} }
} }
printf("min=%u max=%u avg=%" PRIu32 "\n", min, max, (total / SAMPLES)); printf("min=%" PRIi32 " max=%" PRIi32 " avg_diff=%" PRIi32 "\n", min, max,
(total / SAMPLES));
return 0; return 0;
} }

2
tests/ztimer_overhead/tests/01-run.py
View File

@ -11,7 +11,7 @@ from testrunner import run
def testfunc(child): def testfunc(child):
child.expect(r"min=\d+ max=\d+ avg=\d+\r\n") child.expect(r"min=-?\d+ max=-?\d+ avg_diff=\d+\r\n")
if __name__ == "__main__": if __name__ == "__main__":