[sketch] lib.pmu: Sketch of support for load-latency measurement #815
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Counters for measuring the latency of memory loads, like: mem_trans_retired.load_latency_gt_4 mem_trans_retired.load_latency_gt_8 mem_trans_retired.load_latency_gt_nnn require the <nnn> cycle count to be programmed into a special MSR. This change does that programming. The code does not actually work yet due to a hardware dependency on PEBS. See comment in source code.
lukego
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Counters for measuring the latency of memory loads, like:
require the
nnncycle count to be programmed into a special MSR. This change does that programming.The code does not actually work yet due to a hardware dependency on PEBS. See comment in source code.
See also #808.