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OPHELP(1) General Commands Manual OPHELP(1)

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

Show the events for the given numerical CPU type.
Show the symbolic CPU name.

Show the default event for the specified CPU type.
Check the given space-separated event descriptions for validity. If the events are valid, show which pmu counter each event would be assigned to.
Use the callgraph depth to compute the higher minimum sampling intervals for the events.
Show the default unit mask for the given event.
Show the numerical unit and extra mask for given event.
Show the extra unit mask for given event.
List events in XML format.
Show help message.
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

SEE ALSO

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

Wed 31 October 2018 4th Berkeley Distribution