centos man page for libpfm_intel_knc

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

NAME
       libpfm_intel_knc - support for Intel Knights Corner

SYNOPSIS
       #include <perfmon/pfmlib.h>

       PMU name: knc
       PMU desc: Intel Knights Corner

DESCRIPTION
       The library supports Intel Knights Corner processors.

MODIFIERS
       The following modifiers are supported on Intel Knights Corner 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].

       t      Measure on all threads at the same time assuming hyper-threading is enabled. This is a boolean modifier.

AUTHORS
       Stephane Eranian <eranian@gmail.com>

								  September, 2012							 LIBPFM(3)