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Diffstat (limited to 'tools/power/cpupower/bench/benchmark.h')
-rw-r--r-- | tools/power/cpupower/bench/benchmark.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/power/cpupower/bench/benchmark.h b/tools/power/cpupower/bench/benchmark.h new file mode 100644 index 000000000000..51d7f50ac2bb --- /dev/null +++ b/tools/power/cpupower/bench/benchmark.h @@ -0,0 +1,29 @@ +/* cpufreq-bench CPUFreq microbenchmark + * + * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de> + * + * 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. + */ + +/* load loop, this schould take about 1 to 2ms to complete */ +#define ROUNDS(x) {unsigned int rcnt; \ + for (rcnt = 0; rcnt < x*1000; rcnt++) { \ + (void)(((int)(pow(rcnt, rcnt) * \ + sqrt(rcnt*7230970)) ^ 7230716) ^ \ + (int)atan2(rcnt, rcnt)); \ + } } \ + + +void start_benchmark(struct config *config); |