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

6       libpfm_intel_snbep_unc_r2pcie  -  support  for Intel Sandy Bridge-EP R2
7       PCIe  uncore PMU
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SYNOPSIS

10       #include <perfmon/pfmlib.h>
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12       PMU name: snbep_unc_r2pcie
13       PMU desc: Intel Sandy Bridge-EP R2 PCIe uncore PMU
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DESCRIPTION

17       The library supports the Intel Sandy Bridge R2 PCIe uncore  PMU.   This
18       PMU  model  only  exists  on  Sandy  Bridge model 45. There is only one
19       R2PCIe PMU per processor socket.
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MODIFIERS

23       The following modifiers are supported  on  Intel  Sandy  Bridge  R2PCIe
24       uncore PMU:
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26       i      Invert  the  meaning of the event. The counter will now count R2
27              PCIe cycles in which the event is not occurring. This is a bool‐
28              ean 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 R2PCIe cycles in which  the  number
38              of  occurrences  of the event is greater or equal to the thresh‐
39              old.  This is an integer  modifier  with  values  in  the  range
40              [0:15].
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AUTHORS

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