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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | // SPDX-License-Identifier: GPL-2.0-or-later /* cpufreq-bench CPUFreq microbenchmark * * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de> */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <getopt.h> #include <errno.h> #include "config.h" #include "system.h" #include "benchmark.h" static struct option long_options[] = { {"output", 1, 0, 'o'}, {"sleep", 1, 0, 's'}, {"load", 1, 0, 'l'}, {"verbose", 0, 0, 'v'}, {"cpu", 1, 0, 'c'}, {"governor", 1, 0, 'g'}, {"prio", 1, 0, 'p'}, {"file", 1, 0, 'f'}, {"cycles", 1, 0, 'n'}, {"rounds", 1, 0, 'r'}, {"load-step", 1, 0, 'x'}, {"sleep-step", 1, 0, 'y'}, {"help", 0, 0, 'h'}, {0, 0, 0, 0} }; /******************************************************************* usage *******************************************************************/ void usage() { printf("usage: ./bench\n"); printf("Options:\n"); printf(" -l, --load=<long int>\t\tinitial load time in us\n"); printf(" -s, --sleep=<long int>\t\tinitial sleep time in us\n"); printf(" -x, --load-step=<long int>\ttime to be added to load time, in us\n"); printf(" -y, --sleep-step=<long int>\ttime to be added to sleep time, in us\n"); printf(" -c, --cpu=<cpu #>\t\t\tCPU Nr. to use, starting at 0\n"); printf(" -p, --prio=<priority>\t\t\tscheduler priority, HIGH, LOW or DEFAULT\n"); printf(" -g, --governor=<governor>\t\tcpufreq governor to test\n"); printf(" -n, --cycles=<int>\t\t\tload/sleep cycles\n"); printf(" -r, --rounds<int>\t\t\tload/sleep rounds\n"); printf(" -f, --file=<configfile>\t\tconfig file to use\n"); printf(" -o, --output=<dir>\t\t\toutput path. Filename will be OUTPUTPATH/benchmark_TIMESTAMP.log\n"); printf(" -v, --verbose\t\t\t\tverbose output on/off\n"); printf(" -h, --help\t\t\t\tPrint this help screen\n"); exit(1); } /******************************************************************* main *******************************************************************/ int main(int argc, char **argv) { int c; int option_index = 0; struct config *config = NULL; config = prepare_default_config(); if (config == NULL) return EXIT_FAILURE; while (1) { c = getopt_long (argc, argv, "hg:o:s:l:vc:p:f:n:r:x:y:", long_options, &option_index); if (c == -1) break; switch (c) { case 'o': if (config->output != NULL) fclose(config->output); config->output = prepare_output(optarg); if (config->output == NULL) return EXIT_FAILURE; dprintf("user output path -> %s\n", optarg); break; case 's': sscanf(optarg, "%li", &config->sleep); dprintf("user sleep time -> %s\n", optarg); break; case 'l': sscanf(optarg, "%li", &config->load); dprintf("user load time -> %s\n", optarg); break; case 'c': sscanf(optarg, "%u", &config->cpu); dprintf("user cpu -> %s\n", optarg); break; case 'g': strncpy(config->governor, optarg, 14); dprintf("user governor -> %s\n", optarg); break; case 'p': if (string_to_prio(optarg) != SCHED_ERR) { config->prio = string_to_prio(optarg); dprintf("user prio -> %s\n", optarg); } else { if (config != NULL) { if (config->output != NULL) fclose(config->output); free(config); } usage(); } break; case 'n': sscanf(optarg, "%u", &config->cycles); dprintf("user cycles -> %s\n", optarg); break; case 'r': sscanf(optarg, "%u", &config->rounds); dprintf("user rounds -> %s\n", optarg); break; case 'x': sscanf(optarg, "%li", &config->load_step); dprintf("user load_step -> %s\n", optarg); break; case 'y': sscanf(optarg, "%li", &config->sleep_step); dprintf("user sleep_step -> %s\n", optarg); break; case 'f': if (prepare_config(optarg, config)) return EXIT_FAILURE; break; case 'v': config->verbose = 1; dprintf("verbose output enabled\n"); break; case 'h': case '?': default: if (config != NULL) { if (config->output != NULL) fclose(config->output); free(config); } usage(); } } if (config->verbose) { printf("starting benchmark with parameters:\n"); printf("config:\n\t" "sleep=%li\n\t" "load=%li\n\t" "sleep_step=%li\n\t" "load_step=%li\n\t" "cpu=%u\n\t" "cycles=%u\n\t" "rounds=%u\n\t" "governor=%s\n\n", config->sleep, config->load, config->sleep_step, config->load_step, config->cpu, config->cycles, config->rounds, config->governor); } prepare_user(config); prepare_system(config); start_benchmark(config); if (config->output != stdout) fclose(config->output); free(config); return EXIT_SUCCESS; } |