NAME

       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

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

DESCRIPTION

       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

       operf is a performance profiler tool for Linux.

OCOUNT

       ocount is an event counting tool for Linux.

OPREPORT

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

OPANNOTATE

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

OPARCHIVE

       oparchive produces oprofile archive for offline analysis

OPGPROF

       opgprof can produce a gprof-format profile for a single binary.

PROFILE SPECIFICATIONS

       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.

ENVIRONMENT

       No special environment variables are recognized by OProfile.

FILES

       /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.

VERSION

       This man page is current for oprofile-1.4.0.

SEE ALSO

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

COPYRIGHT

       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.

AUTHORS

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

4th Berkeley Distribution                      Thu 21 January 2021                                   OPROFILE(1)