Use the counter mask (cmask) to see how many cycles an instruction
takes to retire. Present as a set of ILP metrics.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/pmu-events/intel_metrics.py | 39 ++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py
index 040dbca0a74e..ba3983920fb3 100755
--- a/tools/perf/pmu-events/intel_metrics.py
+++ b/tools/perf/pmu-events/intel_metrics.py
@@ -262,6 +262,44 @@ def IntelBr():
                      description="breakdown of retired branch instructions")
 
 
+def IntelIlp() -> MetricGroup:
+  tsc = Event("msr/tsc/")
+  c0 = Event("msr/mperf/")
+  low = tsc - c0
+  inst_ret = Event("INST_RETIRED.ANY_P")
+  inst_ret_c = [Event(f"{inst_ret.name}/cmask={x}/") for x in range(1, 6)]
+  core_cycles = Event("CPU_CLK_UNHALTED.THREAD_P_ANY",
+                      "CPU_CLK_UNHALTED.DISTRIBUTED",
+                      "cycles")
+  ilp = [d_ratio(max(inst_ret_c[x] - inst_ret_c[x + 1], 0), core_cycles) for x in range(0, 4)]
+  ilp.append(d_ratio(inst_ret_c[4], core_cycles))
+  ilp0 = 1
+  for x in ilp:
+    ilp0 -= x
+  return MetricGroup("lpm_ilp", [
+      Metric("lpm_ilp_idle", "Lower power cycles as a percentage of all cycles",
+             d_ratio(low, tsc), "100%"),
+      Metric("lpm_ilp_inst_ret_0",
+             "Instructions retired in 0 cycles as a percentage of all cycles",
+             ilp0, "100%"),
+      Metric("lpm_ilp_inst_ret_1",
+             "Instructions retired in 1 cycles as a percentage of all cycles",
+             ilp[0], "100%"),
+      Metric("lpm_ilp_inst_ret_2",
+             "Instructions retired in 2 cycles as a percentage of all cycles",
+             ilp[1], "100%"),
+      Metric("lpm_ilp_inst_ret_3",
+             "Instructions retired in 3 cycles as a percentage of all cycles",
+             ilp[2], "100%"),
+      Metric("lpm_ilp_inst_ret_4",
+             "Instructions retired in 4 cycles as a percentage of all cycles",
+             ilp[3], "100%"),
+      Metric("lpm_ilp_inst_ret_5",
+             "Instructions retired in 5 or more cycles as a percentage of all cycles",
+             ilp[4], "100%"),
+  ])
+
+
 def IntelL2() -> Optional[MetricGroup]:
   try:
     DC_HIT = Event("L2_RQSTS.DEMAND_DATA_RD_HIT")
@@ -633,6 +671,7 @@ def main() -> None:
       Smi(),
       Tsx(),
       IntelBr(),
+      IntelIlp(),
       IntelL2(),
       IntelLdSt(),
       IntelPorts(),
-- 
2.51.0.338.gd7d06c2dae-goog