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The pkgs member of cpupower_topology is being used as the number of cpu packages. As the comment in get_cpu_topology notes, the package ids are not guaranteed to be contiguous. So, simply setting pkgs to the value of the highest physical_package_id doesn't actually provide a count of the number of cpu packages. Instead, calculate pkgs by setting it to the number of distinct physical_packge_id values which is pretty easy to do after the core_info structs are sorted. Calculating pkgs this way also has the nice benefit of getting rid of a sign comparison warning that GCC 4.6 was reporting. Signed-off-by: Palmer Cox <p@lmercox.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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The cpufrequtils package (homepage: http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html ) 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). libcpufreq ---------- "libcpufreq" 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 default libcpufreq, cpufreq-set and cpufreq-info files and installs them in /usr/lib and /usr/bin, respectively. 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 cpufrequtils; 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 cpufrequtils. Dominik Brodowski