kernel_optimize_test

History

Prarit Bhargava 2a813f1aaa Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()" This reverts commit `16b7c275c0`. My previous commit `16b7c275c0` ("tools: cpupower: fix return checks for sysfs_get_idlestate_count()") was not correct. After looking at the changelog for cpupower I noticed that Thomas had changed the return of sysfs_get_idlestate_count() to an unsigned int to simplify the code. The problem is really that both he (in his original change) and I (in my new change) missed the obvious that sysfs_get_idlestate_count() can't return -ENODEV. It should just return 0 for "no c-states". Fixes: `16b7c275c0` (tools: cpupower: fix return checks for ...) Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-12-14 22:14:16 +01:00
..
bench	cpupower: bench: parse.c: Fix several minor errors	2014-07-30 01:57:13 +02:00
debug	cpufreq: Make linux-pm@vger.kernel.org official mailing list	2014-05-01 01:15:32 +02:00
lib	cpupowerutils: increase MAX_LINE_LEN	2011-07-29 18:35:40 +02:00
man	cpupower: Remove mc and smt power aware scheduler info/settings	2014-05-17 00:36:37 +02:00
po
utils	Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"	2014-12-14 22:14:16 +01:00
.gitignore	cpupower tools: Update .gitignore for files created in the debug directories	2012-11-27 23:07:18 +01:00
Makefile	Merge branches 'acpi-tools' and 'pm-tools'	2014-06-03 23:13:34 +02:00
README	cpupower: Remove dead link to homepage, and update the targets built.	2014-05-17 00:36:36 +02:00
ToDo	cpupower: Remove dead link to homepage, and update the targets built.	2014-05-17 00:36:36 +02:00

README

The cpupower package consists of the following elements:

requirements
------------

On x86 pciutils is needed at runtime (-lpci).
For compilation pciutils-devel (pci/pci.h) and a gcc version
providing cpuid.h is needed.
For both it's not explicitly checked for (yet).


libcpupower
----------

"libcpupower" is a library which offers a unified access method for userspace
tools and programs to the cpufreq core and drivers in the Linux kernel. This
allows for code reduction in userspace tools, a clean implementation of
the interaction to the cpufreq core, and support for both the sysfs and proc
interfaces [depending on configuration, see below].


compilation and installation
----------------------------

make
su
make install

should suffice on most systems. It builds libcpupower to put in
/usr/lib; cpupower, cpufreq-bench_plot.sh to put in /usr/bin; and
cpufreq-bench to put in /usr/sbin. If you want to set up the paths
differently and/or want to configure the package to your specific
needs, you need to open "Makefile" with an editor of your choice and
edit the block marked CONFIGURATION.


THANKS
------
Many thanks to Mattia Dongili who wrote the autotoolization and
libtoolization, the manpages and the italian language file for cpupower;
to Dave Jones for his feedback and his dump_psb tool; to Bruno Ducrot for his
powernow-k8-decode and intel_gsic tools as well as the french language file;
and to various others commenting on the previous (pre-)releases of 
cpupower.


        Dominik Brodowski