/* cpufreq-bench CPUFreq microbenchmark * * Copyright (C) 2008 Christian Kornacker * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* 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(); t/commit/tools/perf/builtin-c2c.c?id=f8244ab55200dbe074380c3388804adff03a8a19'>commitdiff

path: root/tools/perf/builtin-c2c.c

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