1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* cpufreq-bench CPUFreq microbenchmark 3 * 4 * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de> 5 */ 6 7 /* struct that holds the required config parameters */ 8 struct config 9 { 10 long sleep; /* sleep time in µs */ 11 long load; /* load time in µs */ 12 long sleep_step; /* time value which changes the 13 * sleep time after every round in µs */ 14 long load_step; /* time value which changes the 15 * load time after every round in µs */ 16 unsigned int cycles; /* calculation cycles with the same sleep/load time */ 17 unsigned int rounds; /* calculation rounds with iterated sleep/load time */ 18 unsigned int cpu; /* cpu for which the affinity is set */ 19 char governor[15]; /* cpufreq governor */ 20 enum sched_prio /* possible scheduler priorities */ 21 { 22 SCHED_ERR = -1, 23 SCHED_HIGH, 24 SCHED_DEFAULT, 25 SCHED_LOW 26 } prio; 27 28 unsigned int verbose; /* verbose output */ 29 FILE *output; /* logfile */ 30 char *output_filename; /* logfile name, must be freed at the end 31 if output != NULL and output != stdout*/ 32 }; 33 34 enum sched_prio string_to_prio(const char *str); 35 36 FILE *prepare_output(const char *dir); 37 38 int prepare_config(const char *path, struct config *config); 39 struct config *prepare_default_config(); 40 41