source: mainline/uspace/app/perf/perf.c@ d230358

/*
 * Copyright (c) 2018 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup perf
 * @{
 */
/**
 * @file
 */

#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <str.h>
#include "perf.h"

benchmark_t benchmarks[] = {
#include "ipc/ping_pong.def"
        { NULL, NULL, NULL }
};

static bool run_benchmark(benchmark_t *bench)
{
        /* Execute the benchmarl */
        const char *ret = bench->entry();

        if (ret == NULL) {
                printf("\nBenchmark completed\n");
                return true;
        }

        printf("\n%s\n", ret);
        return false;
}

static int run_benchmarks(void)
{
        benchmark_t *bench;
        unsigned int i = 0;
        unsigned int n = 0;

        char *failed_names = NULL;

        printf("\n*** Running all benchmarks ***\n\n");

        for (bench = benchmarks; bench->name != NULL; bench++) {
                printf("%s (%s)\n", bench->name, bench->desc);
                if (run_benchmark(bench)) {
                        i++;
                        continue;
                }

                if (!failed_names) {
                        failed_names = str_dup(bench->name);
                } else {
                        char *f = NULL;
                        asprintf(&f, "%s, %s", failed_names, bench->name);
                        if (!f) {
                                printf("Out of memory.\n");
                                abort();
                        }
                        free(failed_names);
                        failed_names = f;
                }
                n++;
        }

        printf("\nCompleted, %u benchmarks run, %u succeeded.\n", i + n, i);
        if (failed_names)
                printf("Failed benchmarks: %s\n", failed_names);

        return n;
}

static void list_benchmarks(void)
{
        size_t len = 0;
        benchmark_t *bench;
        for (bench = benchmarks; bench->name != NULL; bench++) {
                if (str_length(bench->name) > len)
                        len = str_length(bench->name);
        }

        unsigned int _len = (unsigned int) len;
        if ((_len != len) || (((int) _len) < 0)) {
                printf("Command length overflow\n");
                return;
        }

        for (bench = benchmarks; bench->name != NULL; bench++)
                printf("%-*s %s\n", _len, bench->name, bench->desc);

        printf("%-*s Run all benchmarks\n", _len, "*");
}

int main(int argc, char *argv[])
{
        if (argc < 2) {
                printf("Usage:\n\n");
                printf("%s <benchmark>\n\n", argv[0]);
                list_benchmarks();
                return 0;
        }

        if (str_cmp(argv[1], "*") == 0) {
                return run_benchmarks();
        }

        benchmark_t *bench;
        for (bench = benchmarks; bench->name != NULL; bench++) {
                if (str_cmp(argv[1], bench->name) == 0) {
                        return (run_benchmark(bench) ? 0 : -1);
                }
        }

        printf("Unknown benchmark \"%s\"\n", argv[1]);
        return -2;
}

/** @}
 */