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NAME | SYNOPSIS | DESCRIPTION | RETURN | ERRORS | AUTHOR | COLOPHON |
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
pfm_initialize - initialize library
#include <perfmon/pfmlib.h>
int pfm_initialize(void);
This is the first function that a program must call otherwise the
library will not operate. This function probes the underlying
hardware looking for valid PMU event tables to activate. Multiple
distinct PMU tables may be activated at the same time.
The function must be called only once. If the function is called more
than once, it does not execute the initialization multiple times, it
simply returns the same value as for the first call.
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.
PFMLIB_ERR_NOTSUPP
No PMU was activated.
Stephane Eranian <eranian@gmail.com>
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COLOPHON (which is not part of the original manual page), send a mail
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September, 2009 LIBPFM(3)