1/* cpufreq-bench CPUFreq microbenchmark 2 * 3 * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 */ 19 20/* struct that holds the required config parameters */ 21struct config 22{ 23 long sleep; /* sleep time in µs */ 24 long load; /* load time in µs */ 25 long sleep_step; /* time value which changes the 26 * sleep time after every round in µs */ 27 long load_step; /* time value which changes the 28 * load time after every round in µs */ 29 unsigned int cycles; /* calculation cycles with the same sleep/load time */ 30 unsigned int rounds; /* calculation rounds with iterated sleep/load time */ 31 unsigned int cpu; /* cpu for which the affinity is set */ 32 char governor[15]; /* cpufreq governor */ 33 enum sched_prio /* possible scheduler priorities */ 34 { 35 SCHED_ERR = -1, 36 SCHED_HIGH, 37 SCHED_DEFAULT, 38 SCHED_LOW 39 } prio; 40 41 unsigned int verbose; /* verbose output */ 42 FILE *output; /* logfile */ 43 char *output_filename; /* logfile name, must be freed at the end 44 if output != NULL and output != stdout*/ 45}; 46 47enum sched_prio string_to_prio(const char *str); 48 49FILE *prepare_output(const char *dir); 50 51int prepare_config(const char *path, struct config *config); 52struct config *prepare_default_config(); 53 54