1LIBPFM(3)                  Linux Programmer's Manual                 LIBPFM(3)
2
3
4

NAME

6       libpfm_intel_bdx_unc_imc  -  support  for  Intel Broadwell Server Inte‐
7       grated Memory Controller (IMC)  uncore PMU
8

SYNOPSIS

10       #include <perfmon/pfmlib.h>
11
12       PMU name: bdx_unc_imc[0-7]
13       PMU desc: Intel Broadwell Server IMC uncore PMU
14
15

DESCRIPTION

17       The library supports the Intel Broadwell Server Integrated Memory  Con‐
18       troller (IMC) uncore PMU.  This PMU model only exists on various Broad‐
19       well server models (79, 86).
20
21

MODIFIERS

23       The following modifiers are supported on  Intel  Broadwell  server  IMC
24       uncore PMU:
25
26       e      Enable  edge  detection,  i.e., count only when there is a state
27              transition from no occurrence of  the  event  to  at  least  one
28              occurrence. This modifier must be combined with a threshold mod‐
29              ifier (t) with a value greater or equal to one.  This is a bool‐
30              ean modifier.
31
32       t      Set  the  threshold  value.  When  set  to a non-zero value, the
33              counter counts the number of IMC cycles in which the  number  of
34              occurrences  of  the event is greater or equal to the threshold.
35              This is an integer modifier with values in the range [0:255].  i
36              Invert  the meaning of the threshold or edge filter. If set, the
37              event counts when strictly less than  N  occurrences  occur  per
38              cycle if threshold is set to N. When invert is set, then thresh‐
39              old must be set to non-zero value. If set, the event counts when
40              the  event  transitions from occurring to not occurring (falling
41              edge) when edge detection is set. This is a boolean modifier
42

AUTHORS

44       Stephane Eranian <eranian@gmail.com>
45
46
47
48                                  June, 2017                         LIBPFM(3)
Impressum