1LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
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6 libpfm_intel_hswep_unc_imc - support for Intel Haswell-EP Integrated
7 Memory Controller (IMC) uncore PMU
8
10 #include <perfmon/pfmlib.h>
11 PMU name: hswep_unc_imc[0-7]
13 PMU desc: Intel Haswell-EP IMC uncore PMU
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17 The library supports the Intel Haswell Integrated Memory Controller
18 (IMC) uncore PMU. This PMU model only exists on Haswell model 63.
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22 The following modifiers are supported on Intel Haswell C-Box uncore
23 PMU:
24 e Enable edge detection, i.e., count only when there is a state
26 transition from no occurrence of the event to at least one
27 occurrence. This modifier must be combined with a threshold mod‐
28 ifier (t) with a value greater or equal to one. This is a bool‐
29 ean modifier.
30 t Set the threshold value. When set to a non-zero value, the
32 counter counts the number of IMC cycles in which the number of
33 occurrences of the event is greater or equal to the threshold.
34 This is an integer modifier with values in the range [0:255]. i
35 Invert the meaning of the threshold or edge filter. If set, the
36 event counts when strictly less than N occurrences occur per
37 cycle if threshold is set to N. When invert is set, then thresh‐
38 old must be set to non-zero value. If set, the event counts when
39 the event transitions from occurring to not occurring (falling
40 edge) when edge detection is set. This is a boolean modifier
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43 Stephane Eranian <eranian@gmail.com>
44 May, 2015 LIBPFM(3)