OPHELP(1) General Commands Manual OPHELP(1)

ophelp - list OProfile events

ophelp [ options ] [event name]

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").

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 extra unit mask for given event.
List events in XML format.
Show help message.
Show version.

No special environment variables are recognised by ophelp.

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

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

Mon 22 April 2024 4th Berkeley Distribution