diff mbox series

[v2,11/20] perf jevents: Add ILP metrics for Intel

Message ID 20240301185559.2661241-12-irogers@google.com
State New
Headers
Series Python generated Intel metrics |

Commit Message

Ian Rogers March 1, 2024, 6:55 p.m. UTC 
  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 | 30 ++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
diff mbox series

Patch

diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py
index 061914834cff..6f6d1cdf6649 100755
--- a/tools/perf/pmu-events/intel_metrics.py
+++ b/tools/perf/pmu-events/intel_metrics.py
@@ -272,6 +272,35 @@  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)]
+    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("ilp", [
+        Metric("ilp_idle", "Lower power cycles as a percentage of all cycles",
+               d_ratio(low, tsc), "100%"),
+        Metric("ilp_inst_ret_0", "Instructions retired in 0 cycles as a percentage of all cycles",
+               ilp0, "100%"),
+        Metric("ilp_inst_ret_1", "Instructions retired in 1 cycles as a percentage of all cycles",
+               ilp[0], "100%"),
+        Metric("ilp_inst_ret_2", "Instructions retired in 2 cycles as a percentage of all cycles",
+               ilp[1], "100%"),
+        Metric("ilp_inst_ret_3", "Instructions retired in 3 cycles as a percentage of all cycles",
+               ilp[2], "100%"),
+        Metric("ilp_inst_ret_4", "Instructions retired in 4 cycles as a percentage of all cycles",
+               ilp[3], "100%"),
+        Metric("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")
@@ -604,6 +633,7 @@  all_metrics = MetricGroup("", [
     Smi(),
     Tsx(),
     IntelBr(),
+    IntelIlp(),
     IntelL2(),
     IntelLdSt(),
     IntelPorts(),