Likwid is a simple to install and use toolsuite of command line applications for performance oriented programmers. It works for Intel and AMD processors on the Linux operating system.
It consists of:
likwid-topology - print thread, cache and NUMA topology likwid-perfctr - configure and read out hardware performance counters on Intel and AMD processors likwid-powermeter - read out RAPL Energy information and get info about Turbo mode steps likwid-pin - pin your threaded application (pthread, Intel and gcc OpenMP to dedicated processors) likwid-bench - Micro benchmarking platform likwid-genTopoCfg - Dumps topology information to a file likwid-mpirun - Wrapper to start MPI and Hybrid MPI/OpenMP applications (Supports Intel MPI, OpenMPI and MPICH) likwid-perfscope - Frontend to the timeline mode of likwid-perfctr, plots live graphs of performance metrics using gnuplot likwid-agent - Monitoring agent for hardware performance counters likwid-memsweeper - Sweep memory of NUMA domains and evict cachelines from the last level cache likwid-setFrequencies - Tool to control the CPU frequency
See INSTALL for installation hints.
For a detailed documentation on the usage of the tools have a look at the html documentation build with doxygen. Call
make docs
or after installation, look at the man pages.
There is also a wiki at the github page: https://github.com/rrze-likwid/likwid/
If you have problems or suggestions please let me know on the likwid mailing list: http://groups.google.com/group/likwid-users or if it is bug, add an issue at: https://github.com/rrze-likwid/likwid/issues