test_perf.c

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/**
 * @file test_perf.c
 * Tests related to the performance counter.
 */

#include <px4_platform_common/px4_config.h>
#include <px4_platform_common/posix.h>

#include <perf/perf_counter.h>

#include "tests_main.h"

int
test_perf(int argc, char *argv[])
{
    perf_counter_t cc = perf_alloc(PC_COUNT, "test_count");
    perf_counter_t ec = perf_alloc(PC_ELAPSED, "test_elapsed");

    if ((cc == NULL) || (ec == NULL)) {
        printf("perf: counter alloc failed\n");
        return 1;
    }

    perf_begin(ec);
    perf_count(cc);
    perf_count(cc);
    perf_count(cc);
    perf_count(cc);
    printf("perf: expect count of 4\n");
    perf_print_counter(cc);
    perf_end(ec);
    printf("perf: expect count of 1\n");
    perf_print_counter(ec);
    printf("perf: expect at least two counters\n");
    perf_print_all(1);

    perf_free(cc);
    perf_free(ec);

    return OK;
}