1LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
2
6 libpfm_intel_bdx_unc_sbo - support for Intel Broadwell Server S-Box
7 uncore PMU
8
10 #include <perfmon/pfmlib.h>
11 PMU name: bdx_unc_sbo
13 PMU desc: Intel Broadwell Server S-Box uncore PMU
14
17 The library supports the Intel Broadwell server Ring Transfer unit (S-
18 Box) uncore PMU. This PMU model only exists on various Broadwell
19 server models (79, 86).
20
23 The following modifiers are supported on Intel Broadwell server S-Box
24 uncore PMU:
25 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 t Set the threshold value. When set to a non-zero value, the
33 counter counts the number of HA 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 [0:15].
36 i Invert the meaning of the threshold or edge filter. If set, the
38 event counts when strictly less than N occurrences occur per
39 cycle if threshold is set to N. When invert is set, then thresh‐
40 old must be set to non-zero value. If set, the event counts when
41 the event transitions from occurring to not occurring (falling
42 edge) when edge detection is set. This is a boolean modifier
43 i Invert the meaning of the threshold or edge filter. If set, the
45 event counts when strictly less than N occurrences occur per
46 cycle if threshold is set to N. When invert is set, then thresh‐
47 old must be set to non-zero value. If set, the event counts when
48 the event transitions from occurring to not occurring (falling
49 edge) when edge detection is set. This is a boolean modifier
50
53 Stephane Eranian <eranian@gmail.com>
54 June, 2017 LIBPFM(3)