1LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
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6 libpfm_intel_bdx_unc_imc - support for Intel Broadwell Server Inte‐
7 grated Memory Controller (IMC) uncore PMU
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10 #include <perfmon/pfmlib.h>
11 PMU name: bdx_unc_imc[0-7]
13 PMU desc: Intel Broadwell Server IMC uncore PMU
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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).
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23 The following modifiers are supported on Intel Broadwell server IMC
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 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
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44 Stephane Eranian <eranian@gmail.com>
45 June, 2017 LIBPFM(3)