oprofile(1) — Linux manual page


OPROFILE(1)              General Commands Manual             OPROFILE(1)

NAME         top

       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

SYNOPSIS         top

       operf [ options ]
       ocount [ options ]
       opreport [ options ] [ profile specification ]
       opannotate [ options ] [ profile specification ]
       oparchive [ options ] [ profile specification ]
       opgprof [ options ] [ profile specification ]

DESCRIPTION         top

       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         top

       operf is a performance profiler tool for Linux.

OCOUNT         top

       ocount is an event counting tool for Linux.

OPREPORT         top

       opreport gives image and symbol-based profile summaries for the
       whole system or a subset of binary images.

OPANNOTATE         top

       opannotate can produce annotated source or mixed source and
       assembly output.

OPARCHIVE         top

       oparchive produces oprofile archive for offline analysis

OPGPROF         top

       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.)

              Path to the archive to inspect, as generated by oparchive

              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".

              A comma-separated list of sessions to exclude.

              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'

              Same as image:, but the matching images are excluded.

              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

              Same as <option>lib-image:</option>, but the matching
              images are excluded.

              The symbolic event name to match on, e.g.

              The event count to match on, e.g. event:DATA_MEM_REFS

              The unit mask value of the event to match on, e.g. unit-

              Only consider profiles for the given numbered CPU
              (starting from zero).  This is only useful when using CPU
              profile separation.

              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.

              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.

ENVIRONMENT         top

       No special environment variables are recognized by OProfile.

FILES         top

              OProfile user guide.

              Schema file for opreport XML output.

              Schema file for ophelp XML output.

              Event description files used by OProfile.

              The profiler log file.

              The location of the generated sample files.

VERSION         top

       This man page is current for oprofile-1.5.0git.

SEE ALSO         top

       /usr/local/share/doc/oprofile/, operf(1), ocount(1), opreport(1),
       opannotate(1), oparchive(1), opgprof(1), gprof(1), CPU vendor
       architecture manuals

COPYRIGHT         top

       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

AUTHORS         top

       John Levon <levon@movementarian.org> is the primary author. See
       the documentation for other contributors.

COLOPHON         top

       This page is part of the oprofile (a system-wide profiler for
       Linux) project.  Information about the project can be found at 
       ⟨http://oprofile.sourceforge.net/news/⟩.  If you have a bug report
       for this manual page, see
       ⟨http://oprofile.sourceforge.net/bugs/⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨git://git.code.sf.net/p/oprofile/oprofile⟩ on 2023-12-22.  (At
       that time, the date of the most recent commit that was found in
       the repository was 2021-11-29.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

4th Berkeley Distribution Fri 22 December 2023               OPROFILE(1)

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