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LIBPFM

NAME

pfm_initialize − initialize library

SYNOPSIS

#include <perfmon/pfmlib.h>

int pfm_initialize(void);

DESCRIPTION

This is the first function that a program must call otherwise the library will not function at all. This function probes the underlying hardware looking for valid PMUs event tables to activate. Multiple distinct PMU tables may be activated at the same time.

The function must be called only once.

RETURN

The function returns whether or not it was successful, i.e., at least one PMU was activated. A return value of PFMLIB_SUCCESS indicates success, otherwise the value is an error code.

ERRORS

PFMLIB_ERR_NOTSUPP

No PMU was activated.

AUTHOR

Stephane Eranian <eranian AT gmail DOT com>

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