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-rw-r--r--tools/power/cpupower/bench/benchmark.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/power/cpupower/bench/benchmark.h b/tools/power/cpupower/bench/benchmark.h
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+++ b/tools/power/cpupower/bench/benchmark.h
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ */
+
+/* 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);