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57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/*
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* Copyright (C) 2019 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup test
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* @{
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*
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* @file
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* @brief ztimer overhead test application
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*
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* @}
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <inttypes.h>
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#include "ztimer.h"
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#include "ztimer/overhead.h"
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#define BASE 1000
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#define SAMPLES 1024
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int main(void)
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{
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uint32_t total = 0;
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uint16_t min = 0xFFFF;
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uint16_t max = 0;
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/* unset configured adjustment */
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/* ZTIMER_USEC->adjust = 0; */
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unsigned n = SAMPLES;
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while (n--) {
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unsigned overhead = ztimer_overhead(ZTIMER_USEC, BASE);
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total += overhead;
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if (overhead < min) {
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min = overhead;
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}
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else if (overhead > max) {
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max = overhead;
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}
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}
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printf("min=%u max=%u avg=%" PRIu32 "\n", min, max, (total / SAMPLES));
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return 0;
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}
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