OProfile

OProfile consists of a kernel driver and a daemon for collecting sample data, and several post-profiling tools for turning data into information. OProfile works across a range of CPUs, include the Intel range, AMD's Athlon and AMD64 processors range, the Alpha, ARM, and more. OProfile will work against almost any 2.2, 2.4 and 2.6 kernels, and works on both UP and SMP systems from desktops to the scariest NUMAQ boxes.

Its feature includes System-wide profiling, Performance counter support, Call-graph support, Post-profile analysis.