tools/power/cpupower/bench/benchmark.h

   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 /* load loop, this schould take about 1 to 2ms to complete */
   8 #define ROUNDS(x) {unsigned int rcnt;                          \
   9                 for (rcnt = 0; rcnt < x*1000; rcnt++) { \
  10                         (void)(((int)(pow(rcnt, rcnt) * \
  11                                       sqrt(rcnt*7230970)) ^ 7230716) ^ \
  12                                       (int)atan2(rcnt, rcnt));         \
  13                 } }                                                     \
  14
  15
  16 void start_benchmark(struct config *config);