oprofile - a statistical profiler for Linux systems, capable of profiling all running code at low overhead; also included is a set of post-profiling analysis tools, as well as a simple event counting tool
operf [ options ] ocount [ options ] opreport [ options ] [ profile specification ] opannotate [ options ] [ profile specification ] oparchive [ options ] [ profile specification ] opgprof [ options ] [ profile specification ]
OProfile is a profiling system for systems running Linux 2.6.31 and greater. OProfile makes use of the hardware performance counters provided on Intel, AMD, and other processors. OProfile can profile a selected program or process or the whole system. OProfile can also be used to collect cumulative event counts at the application, process, or system level. For a gentle guide to using OProfile, please read the HTML documentation listed in SEE ALSO.
operf is a performance profiler tool for Linux.
ocount is an event counting tool for Linux.
opreport gives image and symbol-based profile summaries for the whole system or a subset of binary images.
opannotate can produce annotated source or mixed source and assembly output.
oparchive produces oprofile archive for offline analysis
opgprof can produce a gprof-format profile for a single binary.
Various optional profile specifications may be used with the post- profiling tools. A profile specification is some combination of the parameters listed below. ( Note: Enclosing part of a profile specification in curly braces { } can be used for differential profiles with opreport, but the braces must be surrounded by whitespace.) archive:archive Path to the archive to inspect, as generated by oparchive session:sessionlist A comma-separated list of session names to resolve in. Absence of this tag, unlike all others, means "the current session", equivalent to specifying "session:current". session-exclude:sessionlist A comma-separated list of sessions to exclude. image:imagelist A comma-separated list of image names to resolve. Each entry may be relative path, glob-style name, or full path, e.g. opreport 'image:/usr/bin/operf,*op*,./oprofpp' image-exclude:imagelist Same as image:, but the matching images are excluded. lib-image:imagelist Same as image:, but only for images that are for a particular primary binary image (namely, an application). This only makes sense to use if you're using --separate. This includes kernel modules and the kernel when using --separate=kernel. lib-image-exclude:imagelist Same as <option>lib-image:</option>, but the matching images are excluded. event:eventname The symbolic event name to match on, e.g. event:DATA_MEM_REFS. count:eventcount The event count to match on, e.g. event:DATA_MEM_REFS count:30000. unit-mask:maskvalue The unit mask value of the event to match on, e.g. unit-mask:1. cpu:cpulist Only consider profiles for the given numbered CPU (starting from zero). This is only useful when using CPU profile separation. tgid:pidlist Only consider profiles for the given task groups. Unless some program is using threads, the task group ID of a process is the same as its process ID. This option corresponds to the POSIX notion of a thread group. This is only useful when using per- process profile separation. tid:tidlist Only consider profiles for the given threads. When using recent thread libraries, all threads in a process share the same task group ID, but have different thread IDs. You can use this option in combination with tgid: to restrict the results to particular threads within a process. This is only useful when using per- process profile separation.
No special environment variables are recognized by OProfile.
/usr/share/doc/oprofile/oprofile.html OProfile user guide. /usr/share/doc/oprofile/opreport.xsd Schema file for opreport XML output. /usr/share/doc/oprofile/ophelp.xsd Schema file for ophelp XML output. /usr/share/oprofile/ Event description files used by OProfile. <session-dir>/samples/operf.log The profiler log file. <session-dir>/samples/current The location of the generated sample files.
This man page is current for oprofile-1.1.0.
/usr/share/doc/oprofile/, operf(1), ocount(1), opreport(1), opannotate(1), oparchive(1), opgprof(1), gprof(1), CPU vendor architecture manuals
oprofile is Copyright (C) 1998-2004 University of Manchester, UK, John Levon, and others. OProfile is released under the GNU General Public License, Version 2, or (at your option) any later version.
John Levon <levon@movementarian.org> is the primary author. See the documentation for other contributors.
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