diff options
| -rwxr-xr-x | tools/perf/pmu-events/intel_metrics.py | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py index 919a058c343a..7fcc0a1c544d 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -1,12 +1,14 @@ #!/usr/bin/env python3 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) import argparse +import json import math import os +import re from typing import Optional from metric import (d_ratio, has_event, max, CheckPmu, Event, JsonEncodeMetric, - JsonEncodeMetricGroupDescriptions, LoadEvents, Metric, - MetricGroup, MetricRef, Select) + JsonEncodeMetricGroupDescriptions, Literal, LoadEvents, + Metric, MetricGroup, MetricRef, Select) # Global command line arguments. _args = None @@ -261,6 +263,34 @@ def IntelBr(): description="breakdown of retired branch instructions") +def IntelPorts() -> Optional[MetricGroup]: + pipeline_events = json.load( + open(f"{_args.events_path}/x86/{_args.model}/pipeline.json")) + + core_cycles = Event("CPU_CLK_UNHALTED.THREAD_P_ANY", + "CPU_CLK_UNHALTED.DISTRIBUTED", + "cycles") + # Number of CPU cycles scaled for SMT. + smt_cycles = Select(core_cycles / 2, Literal("#smt_on"), core_cycles) + + metrics = [] + for x in pipeline_events: + if "EventName" in x and re.search("^UOPS_DISPATCHED.PORT", x["EventName"]): + name = x["EventName"] + port = re.search(r"(PORT_[0-9].*)", name).group(0).lower() + if name.endswith("_CORE"): + cyc = core_cycles + else: + cyc = smt_cycles + metrics.append(Metric(f"lpm_{port}", f"{port} utilization (higher is better)", + d_ratio(Event(name), cyc), "100%")) + if len(metrics) == 0: + return None + + return MetricGroup("lpm_ports", metrics, "functional unit (port) utilization -- " + "fraction of cycles each port is utilized (higher is better)") + + def IntelSwpf() -> Optional[MetricGroup]: ins = Event("instructions") try: @@ -356,6 +386,7 @@ def main() -> None: Smi(), Tsx(), IntelBr(), + IntelPorts(), IntelSwpf(), ]) |