cpupowerutils - cpufrequtils extended with quite some features

CPU power consumption vs performance tuning is no longer
limited to CPU frequency switching anymore: deep sleep states,
traditional dynamic frequency scaling and hidden turbo/boost
frequencies are tied close together and depend on each other.
The first two exist on different architectures like PPC, Itanium and
ARM, the latter (so far) only on X86. On X86 the APU (CPU+GPU) will
only run most efficiently if CPU and GPU has proper power management
in place.

Users and Developers want to have *one* tool to get an overview what
their system supports and to monitor and debug CPU power management
in detail. The tool should compile and work on as many architectures
as possible.

Once this tool stabilizes a bit, it is intended to replace the
Intel-specific tools in tools/power/x86

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 50 insertions, 0 deletions

diff --git a/tools/power/cpupower/bench/parse.h b/tools/power/cpupower/bench/parse.h
new file mode 100644
index 000000000000..9fcdfa23dd9c
--- /dev/null
+++ b/tools/power/cpupower/bench/parse.h
@@ -0,0 +1,50 @@
+/*  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.
+ */
+
+/* struct that holds the required config parameters */
+struct config
+{
+	long sleep;		/* sleep time in µs */
+	long load;		/* load time in µs */
+	long sleep_step;	/* time value which changes the
+				 * sleep time after every round in µs */
+	long load_step;		/* time value which changes the
+				 * load time after every round in µs */
+	unsigned int cycles;	/* calculation cycles with the same sleep/load time */
+	unsigned int rounds;	/* calculation rounds with iterated sleep/load time */
+	unsigned int cpu;	/* cpu for which the affinity is set */
+	char governor[15];	/* cpufreq governor */
+	enum sched_prio		/* possible scheduler priorities */
+	{
+		SCHED_ERR=-1,SCHED_HIGH, SCHED_DEFAULT, SCHED_LOW
+	} prio;
+
+	unsigned int verbose;	/* verbose output */
+	FILE *output;		/* logfile */
+	char *output_filename;	/* logfile name, must be freed at the end
+				   if output != NULL and output != stdout*/
+};
+
+enum sched_prio string_to_prio(const char *str);
+
+FILE *prepare_output(const char *dir);
+
+int prepare_config(const char *path, struct config *config);
+struct config *prepare_default_config();
+