OProfile provides a low-overhead profiler (operf) capable of both single-application profiling and system-wide profiling. There is also a simple event counting tool (ocount). You can find some documentation in the doc/ directory. Please visit the oprofile website at : http://oprofile.sf.net/ oprofile was originally written by John Levon <levon@movementarian.org> and Philippe Elie <phil.el@wanadoo.fr>. The operf and ocount tools were developed by Maynard Johnson <maynardj@us.ibm.com>, who is the current maintainer. Dave Jones <davej@suse.de> provided bug fixes and support for the AMD Athlon, and AMD Hammer families of CPUs. Suravee.Suthikulpanit@amd.com <Suravee.Suthikulpanit@amd.com> contributed various AMD-related patches, including Instruction-Based-Sampling support (available only in pre-1.0 releases). Bob Montgomery <bobm@fc.hp.com> provided bug fixes, the initial RTC driver and the initial ia64 driver. Will Cohen <wcohen@redhat.com> integrated the ia64 driver into the oprofile release, and contributed bug fixes and several cleanups. Will Deacon <will.deacon@arm.com> has contributed patches as well as his time to support the ARM architecture. Graydon Hoare <graydon@redhat.com> provided P4 port, bug fixes and cleanups. Ralf Baechle <ralf@linux-mips.org> provided the MIPS port. Other contributors can be seen via 'git log'. Building -------- Please read the installation instructions in doc/oprofile.html or http://oprofile.sourceforge.net/doc/install.html. Only 2.6 kernels (or later) are supported. Quick start : (If using git: ./autogen.sh first. You need automake 1.5 or higher. You can specify a different version, e.g. ACLOCAL=aclocal-1.5 AUTOMAKE=automake-1.5 AUTOCONF=autoconf-2.13 AUTOHEADER=autoheader-2.13 ./autogen.sh) Then run the following commands ./configure [options] (use './configure --help' to see options) make