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 and cache topology likwid-features - view and toggle feature reagister on Intel processors 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-gencfg - Dumps topology information to a file likwid-mpirun - Wrapper to start MPI and Hybrid MPI/OpenMP applications (Supports Intel MPI and OpenMPI) likwid-scope - Frontend to the timeline mode of likwid-perfctr, plots live graphs of performance metrics
For a detailed documentation on the usage of the tools have a look at the likwid wiki pages at:
http://code.google.com/p/likwid/wiki/Introduction
If you have problems or suggestions please let me know on the likwid mailing list: