NAME

       ophelp - list OProfile events

SYNOPSIS

       ophelp [ options ] [event name]

DESCRIPTION

       By  default,  ophelp  lists  the  available  performance counter options. If you give it a
       symbolic event name, it will return the hardware value (e.g. "ophelp DATA_MEM_REFS").

OPTIONS

       --cpu-type / -c
              Show the events for the given numerical CPU type.

       --get-cpu-type / -r
              Show the symbolic CPU name.

       --get-default-event / -d
              Show the default event for the specified CPU type.

       --check-events / -e [events]
              Check the given space-separated event descriptions for validity.  If the events are
              valid, show which pmu counter each event would be assigned to.

       --callgraph [callgraph_depth]
              Use  the  callgraph  depth to compute the higher minimum sampling intervals for the
              events.

       --unit-mask / -u [event]
              Show the default unit mask for the given event.

       --extra-mask / -E [event]
              Show the extra unit mask for given event.

       --xml / -X
              List events in XML format.

       --help / -? / --usage
              Show help message.

       --version / -v
              Show version.

ENVIRONMENT

       No special environment variables are recognised by ophelp.

FILES

       $prefix/share/oprofile/
              Event description files used by OProfile.

       /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/, oprofile(1)