1LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
2
6 pfm_initialize - initialize performance monitoring library
7
9 #include <perfmon/pfmlib.h>
10 int pfm_initialize(void);
12
15 This is the first function that a program using the library must call
16 otherwise the library will not function at all. This function probes
17 the host PMU and initialize the internal state of the library. In the
18 case of a multi-threaded application, this function needs to be called
19 only once, most likely by the initial thread.
20
23 The function returns whether or not it was successful, i.e., the host
24 PMU has been correctly identified and is supported. A return value of
25 PFMLIB_SUCCESS indicates success, otherwise the value is an error code.
26
28 PFMLIB_ERR_NOTSUPP
29 the host PMU is not supported.
30
32 Stephane Eranian <eranian@hpl.hp.com>
33 November, 2003 LIBPFM(3)