tools/power/cpupower/bench/parse.h

   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 */
  21 struct 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
  47 enum sched_prio string_to_prio(const char *str);
  48
  49 FILE *prepare_output(const char *dir);
  50
  51 int prepare_config(const char *path, struct config *config);
  52 struct config *prepare_default_config();
  53