linux

History

Ben Hutchings 4cca045768 cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores The switch that conditionally sets CPUPOWER_CAP_HAS_TURBO_RATIO and CPUPOWER_CAP_IS_SNB flags is missing a break, so all cores get both flags set and an assumed base clock of 100 MHz for turbo values. Reported-by: GSR <gsr.bugs@infernal-iceberg.com> Tested-by: GSR <gsr.bugs@infernal-iceberg.com> References: https://bugs.debian.org/859978 Fixes: `8fb2e440b2` (cpupower: Show Intel turbo ratio support via ...) Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2017-04-13 14:51:10 +02:00
..
bench	cpupower: fix potential memory leak	2016-05-05 01:19:38 +02:00
debug	make use of make variable CURDIR instead of calling pwd	2016-12-11 12:12:56 +01:00
lib	cpupower: Add cpuidle parts into library	2016-04-28 16:02:29 +02:00
man	Fix cpupower manpages "NAME" section	2016-04-28 16:02:29 +02:00
po	cpupowerutils - cpufrequtils extended with quite some features	2011-07-29 18:35:36 +02:00
utils	cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores	2017-04-13 14:51:10 +02:00
.gitignore	cpupower tools: Update .gitignore for files created in the debug directories	2012-11-27 23:07:18 +01:00
Makefile	make use of make variable CURDIR instead of calling pwd	2016-12-11 12:12:56 +01:00
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