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           opcontrol [ options ]


           opcontrol can be used to start profiling, end a profiling session, dump
           profile data, and set up the profiling parameters.


           --help Show help message.
                  Show version.
                  Shows the monitorable events.
           --init Load the OProfile module  if  required  and  make  the  OProfile
                  driver interface available.
                  Followed  by  list  options  for profiling setup. Store setup in
                  ~root/.oprofile/daemonrc. Optional.
                  Show configuration information.
                  Start the oprofile daemon without starting profiling. Not avail-
                  able in 2.2/2.4 kernels.
                  Start  data collection with either arguments provided by --setup
                  or with information saved in ~root/.oprofile/daemonrc.
           --dump Force a flush of the collected profiling data to the daemon.
           --stop Stop data collection. Not available in 2.2/2.4 kernels.
                  Stop data collection and kill the daemon.
                  Clear out data from current session, but leaves saved  sessions.
                  Save data from current session to sessionname.
                  Shut down daemon. Unload the oprofile module and oprofilefs.
                  Set kernel per cpu buffer to num samples (2.6 only). If you pro-
                  file  at  high rate it can help to increase this if the log file
                  show excessive count of sample lost cpu buffer overflow.
                  Specify an event to measure for the hardware  performance  coun-
                  ters,  or  "default"  for the default event. The event is of the
                  form "CPU_CLK_UNHALTED:30000:0:1:1" where the numeric values are
                  count,  unit  mask,  kernel-space counting, user-space counting,
                  respectively.  Note that this  over-rides  all  previous  events
                  selected;  if you want two or more counters used simultaneously,
                  you must specify them on the same opcontrol invocation.
                  Separate samples based on the given separator.  'lib'  separates
                  dynamically  linked  library  samples  per application. 'kernel'
                  separates kernel and  kernel  module  samples  per  application;
                  'kernel'  implies  'library'. 'thread' gives separation for each
                  thread and task.  'cpu' separates for each  CPU.  'all'  implies
                  all of the above options and 'none' turns off separation.
                  Enable  callgraph  sample collection with a maximum depth. Use 0
                  to disable callgraph profiling. This option is available on  x86
                  using  a 2.6+ kernel with callgraph support enabled.  It is also
                  available on PowerPC using a 2.6.17+ kernel.
                  Only profile the given absolute paths to binaries, or  "all"  to
                  profile everything (the default).
                  vmlinux kernel image.
                  Use  this  when  you  don't  have a kernel vmlinux file, and you
                  don't want to profile the kernel.
                  Be verbose in the daemon log. This has a high overhead.
                  Set kernel range vma address in hexadecimal.

    OPTIONS (specific to Xen)

                  Xen image
                  List of domain ids participating  in  a  multi-domain  profiling
                  session.  If  more  than  one domain is specified in <list> they
                  The location of the generated sample files.


           This man page is current for oprofile-0.9.6.


           /usr/share/doc/oprofile/, oprofile(1)

    4th Berkeley Distribution Thu 07 July 2011 OPCONTROL(1)


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