| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* cpufreq-bench CPUFreq microbenchmark |
| * |
| * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de> |
| */ |
| |
| /* struct that holds the required config parameters */ |
| struct config |
| { |
| long sleep; /* sleep time in µs */ |
| long load; /* load time in µs */ |
| long sleep_step; /* time value which changes the |
| * sleep time after every round in µs */ |
| long load_step; /* time value which changes the |
| * load time after every round in µs */ |
| unsigned int cycles; /* calculation cycles with the same sleep/load time */ |
| unsigned int rounds; /* calculation rounds with iterated sleep/load time */ |
| unsigned int cpu; /* cpu for which the affinity is set */ |
| char governor[15]; /* cpufreq governor */ |
| enum sched_prio /* possible scheduler priorities */ |
| { |
| SCHED_ERR = -1, |
| SCHED_HIGH, |
| SCHED_DEFAULT, |
| SCHED_LOW |
| } prio; |
| |
| unsigned int verbose; /* verbose output */ |
| FILE *output; /* logfile */ |
| char *output_filename; /* logfile name, must be freed at the end |
| if output != NULL and output != stdout*/ |
| }; |
| |
| enum sched_prio string_to_prio(const char *str); |
| |
| FILE *prepare_output(const char *dir); |
| |
| int prepare_config(const char *path, struct config *config); |
| struct config *prepare_default_config(); |
| |