LIBPFM(3)						     Linux Programmer's Manual							 LIBPFM(3)

NAME

       libpfm_intel_coreduo - support for Intel Core Duo/Solo processors

SYNOPSIS

       #include <perfmon/pfmlib.h>

       PMU name: coreduo
       PMU desc: Intel Core Duo

DESCRIPTION

       The library supports all Intel Yonah-based processors such as Intel Core Duo and Intel Core Solo processors.

MODIFIERS

       The following modifiers are supported on Intel Core Duo processors:

       u      Measure at user level which includes privilege levels 1, 2, 3. This corresponds to PFM_PLM3.  This is a boolean modifier.

       k      Measure at kernel level which includes privilege level 0. This corresponds to PFM_PLM0.  This is a boolean modifier.

       i      Invert the meaning of the event. The counter will now count cycles in which the event is not occurring. This is a boolean modifier

       e      Enable edge detection, i.e., count only when there is a state transition. This is a boolean modifier.

       c      Set  the counter mask value. The mask acts as a threshold. The counter will count the number of cycles in which the number of occur-
	      rences of the event is greater or equal to the threshold. This is an integer modifier with values in the range [0:255].

ENVIRONMENT VARIABLES

       It is possible to force activation of the Intel Core Duo support using the LIBPFM_FORCE_PMU variable.   The  PMU  name,	coreduo,  must	be
       passed. No additional options are supported.

AUTHORS

       Stephane Eranian <eranian@gmail.com>

								  September, 2009							 LIBPFM(3)