libpfm_intel_hswep_unc_imc - support for Intel Haswell-EP
Integrated Memory Controller (IMC) uncore PMU
#include <perfmon/pfmlib.h>
PMU name: hswep_unc_imc[0-7]
PMU desc: Intel Haswell-EP IMC uncore PMU
The library supports the Intel Haswell Integrated Memory
Controller (IMC) uncore PMU. This PMU model only exists on Haswell model
63.
The following modifiers are supported on Intel Haswell C-Box
uncore PMU:
- e
- Enable edge detection, i.e., count only when there is a state transition
from no occurrence of the event to at least one occurrence. This modifier
must be combined with a threshold modifier (t) with a value greater or
equal to one. This is a boolean modifier.
- t
- Set the threshold value. When set to a non-zero value, the counter counts
the number of IMC cycles in which the number of occurrences of the event
is greater or equal to the threshold. This is an integer modifier with
values in the range [0:255]. i Invert the meaning of the threshold
or edge filter. If set, the event counts when strictly less than N
occurrences occur per cycle if threshold is set to N. When invert is set,
then threshold must be set to non-zero value. If set, the event counts
when the event transitions from occurring to not occurring (falling edge)
when edge detection is set. This is a boolean modifier
Stephane Eranian <eranian@gmail.com>