1LIBPFM(3)                  Linux Programmer's Manual                 LIBPFM(3)
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NAME

6       libpfm_intel_snbep_unc_r3qpi  - support for Intel Sandy Bridge-EP R3QPI
7       uncore PMU
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SYNOPSIS

10       #include <perfmon/pfmlib.h>
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12       PMU name: snbep_unc_r3qpi0, snbep_unc_r3qpi0
13       PMU desc: Intel Sandy Bridge-EP R3QPI uncore PMU
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DESCRIPTION

17       The library supports the Intel Sandy Bridge R3QPI uncore PMU.  This PMU
18       model  only  exists  on Sandy Bridge model 45. There are two R3QPI PMUs
19       per processor socket.
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MODIFIERS

23       The following modifiers are  supported  on  Intel  Sandy  Bridge  R3PQI
24       uncore PMU:
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26       i      Invert  the  meaning  of  the  event. The counter will now count
27              R3QPI cycles in which the event is  not  occurring.  This  is  a
28              boolean modifier
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30       e      Enable  edge  detection,  i.e., count only when there is a state
31              transition from no occurrence of  the  event  to  at  least  one
32              occurrence. This modifier must be combined with a threshold mod‐
33              ifier (t) with a value greater or equal to one.  This is a bool‐
34              ean modifier.
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36       t      Set  the  threshold  value.  When  set  to a non-zero value, the
37              counter counts the number of R3QPI cycles in which the number of
38              occurrences  of  the event is greater or equal to the threshold.
39              This is an integer modifier with values in the range [0:15].
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AUTHORS

43       Stephane Eranian <eranian@gmail.com>
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47                                 August, 2012                        LIBPFM(3)