NAME

       oprofile - a system-wide profiler

SYNOPSIS

       opcontrol [ 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 and greater. Profiling runs
       transparently in the background and profile data can be collected at  any  time.  OProfile
       makes  use  of  the  hardware  performance  counters  provided  on  Intel,  AMD, and other
       processors, and uses a timer-interrupt based mechanism on CPUs without counters.  OProfile
       can profile the whole system in high detail.
       For  a  gentle  guide  to using OProfile, please read the HTML documentation listed in SEE
       ALSO.

OPCONTROL

       opcontrol is used for starting and stopping the  OProfile  daemon,  and  providing  set-up
       parameters.

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

       All of the post-profiling tools can take profile specifications, which is some combination
       of the following parameters. Enclosing part of a profile specification in curly braces { }
       can be used for differential profiles with opreport ; 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/oprofiled,*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 recognised by oprofile.

FILES

       $HOME/.oprofile/
              Configuration files

       /root/.oprofile/daemonrc
              Configuration file for opcontrol

       /usr/share/oprofile/
              Event description files used by OProfile.

       /var/lib/oprofile/samples/oprofiled.log
              The user-space daemon logfile.

       /dev/oprofile
              The device filesystem for communication with the Linux kernel module.

       /var/lib/oprofile/samples/
              The location of the generated sample files.

VERSION

       This man page is current for oprofile-0.9.9.

SEE ALSO

       /usr/share/doc/oprofile/,    opcontrol(1),   opreport(1),   opannotate(1),   oparchive(1),
       opgprof(1), gprof(1), readprofile(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.