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TOMOYO Linux Cross Reference
Linux/tools/power/cpupower/bench/benchmark.h

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  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 /* load loop, this schould take about 1 to 2ms to complete */
 21 #define ROUNDS(x) {unsigned int rcnt;                          \
 22                 for (rcnt = 0; rcnt < x*1000; rcnt++) { \
 23                         (void)(((int)(pow(rcnt, rcnt) * \
 24                                       sqrt(rcnt*7230970)) ^ 7230716) ^ \
 25                                       (int)atan2(rcnt, rcnt));         \
 26                 } }                                                     \
 27 
 28 
 29 void start_benchmark(struct config *config);
 30 

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