From nobody Sun Feb 8 22:58:18 2026 Received: from mail-dy1-f201.google.com (mail-dy1-f201.google.com [74.125.82.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DF5C330D32 for ; Thu, 8 Jan 2026 19:12:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899526; cv=none; b=WqoeyLZG3f4A8wqdM+hWxWa7inQtgkv3aoZVosUkli0wxosG1Pzbsh31iTn6nw8o2xhGogkN/EWw4gxbg/yXad5+LaovNvPA1jHsh2B7gUSdemuUnoG52Fw1R777u39GGdGR05+Dpdpolk5gdSUH3DpqY0WMWFPbP/ELoNucAwY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899526; c=relaxed/simple; bh=G/uAvahxqJcRd5BleQ08IDyOIhEFgPbCXkArIUPFs8I=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=jqaQJXrnopsmDH0n4TG70WthZGIBWTsqhVOdSneeKd4lttl7XNyd/qSm821xEBhuQodmwl6g0u0PwiQZr+BL+J/ZF9gWTr6coxmWAkLjV80hTEuiOh4c7tSjaIrBUvkmO9epPyyqqz89TpzLqj4qx0z3CtdAZJ7XU+ITegtJi7U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=c1feFSti; arc=none smtp.client-ip=74.125.82.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="c1feFSti" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-2b050acf07dso9812349eec.0 for ; Thu, 08 Jan 2026 11:12:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899524; x=1768504324; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=ojqL+aHY7ws3pOSR/jykm3GApScz0VMEtLVUVjH0CII=; b=c1feFStiDRNcHLY07j2RG9iYkhWuR3TH7DuN/k2DU26skYKdGeDJLHf0LmmN+6NLZ4 jyvkNh+DU7DEdE2GaTAE/n4jsEE/pVJlDl2jRB6tzL/gZop8j+eA4lVSt6lO6hTA9FJt 5SaqSlFe/UMclHVS603pzo5CY9MLtX2rx27vU18dDtumCCC5tQ8QeccwLvGG0WjFo4ma DiIsNdKtxisrCI8D26tyE9x82aHcRsxDOIsl4prm0utB0VMEnPXxmfx+CUiqWNkcTHfb 4Ynr32Z45gBfOYQp0zaQD14jWMdHJ0as5bNmBvMWreSOjvpAU7Tn8KCad5zXmZAeM8+x YMCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899524; x=1768504324; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ojqL+aHY7ws3pOSR/jykm3GApScz0VMEtLVUVjH0CII=; b=B0DGCa6SO+Vv4fz5J8hqRKK/Rhv6sV8yE2b1z58XhtFU8TqsiKZgW0WUZW+e7+jL1t Lo6FOlBRwXr6l8A9+Wje/XtTDsGzEFdC3BSqf3Q+exTJUWNGAbXBd5QE3DJagygLwLvs vddI0k9U+WjqZ98CbaChDvqSqFjfm1EZAIq9Vq5lYP+PQhSEURXqdT1QxsR9JPTPaZ30 W178et6//AZWL3ryG1cep7LoUELpNOcRdna75CFhqy73/MesD7ZZwQgpFnqb8DKXrKTW M552IdxUvxq/9+A2uwCj2sbNpFww7lIqv3+9FrM1ADXUKhtXUI6rB3BPtELHEuky5oS7 W1JQ== X-Forwarded-Encrypted: i=1; AJvYcCXihQTtXUPRHWUr1u+YkYpjoy3r9Iv0k4BLbRfMnYeCVBHnxHL2sJJPhgc2Ojy8us7SVa08DUyBo6c/7Vc=@vger.kernel.org X-Gm-Message-State: AOJu0Yx+eUQTWPqXv09I4Qlorh86vxD0Zb9QFlu/uUIvoK6nLHTTbpDS +JNQR+Rzx93RW9yKHgpagGmk/oJjEwULa7alxhrd2nxAVyTH0jfShdYuje7oW102QCfJ2gDB13Q BofKAoF7hcA== X-Google-Smtp-Source: AGHT+IGomg2BUUO7ZchHKJFVKs9B9ALyziFsaz4zSsSc7du5ZfNpdlJkL+TAHifGZjktDI9GF7xqdUI6IPbg X-Received: from dlxx12.prod.google.com ([2002:a05:7022:408c:b0:119:49ca:6ba4]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:609a:b0:119:e56b:958a with SMTP id a92af1059eb24-121f8ae5f51mr5270520c88.15.1767899524232; Thu, 08 Jan 2026 11:12:04 -0800 (PST) Date: Thu, 8 Jan 2026 11:10:50 -0800 In-Reply-To: <20260108191105.695131-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260108191105.695131-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260108191105.695131-21-irogers@google.com> Subject: [PATCH v10 20/35] perf jevents: Add ports metric group giving utilization on Intel From: Ian Rogers To: Adrian Hunter , Alexander Shishkin , Arnaldo Carvalho de Melo , Benjamin Gray , Caleb Biggers , Edward Baker , Ian Rogers , Ingo Molnar , James Clark , Jing Zhang , Jiri Olsa , John Garry , Leo Yan , Namhyung Kim , Perry Taylor , Peter Zijlstra , Samantha Alt , Sandipan Das , Thomas Falcon , Weilin Wang , Xu Yang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The ports metric group contains a metric for each port giving its utilization as a ratio of cycles. The metrics are created by looking for UOPS_DISPATCHED.PORT events. Tested-by: Thomas Falcon Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 35 ++++++++++++++++++++++++-- 1 file 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, JsonEncodeMe= tric, - JsonEncodeMetricGroupDescriptions, LoadEvents, Metric, - MetricGroup, MetricRef, Select) + JsonEncodeMetricGroupDescriptions, Literal, LoadEvents, + Metric, MetricGroup, MetricRef, Select) =20 # Global command line arguments. _args =3D None @@ -261,6 +263,34 @@ def IntelBr(): description=3D"breakdown of retired branch instruct= ions") =20 =20 +def IntelPorts() -> Optional[MetricGroup]: + pipeline_events =3D json.load( + open(f"{_args.events_path}/x86/{_args.model}/pipeline.json")) + + core_cycles =3D Event("CPU_CLK_UNHALTED.THREAD_P_ANY", + "CPU_CLK_UNHALTED.DISTRIBUTED", + "cycles") + # Number of CPU cycles scaled for SMT. + smt_cycles =3D Select(core_cycles / 2, Literal("#smt_on"), core_cycles) + + metrics =3D [] + for x in pipeline_events: + if "EventName" in x and re.search("^UOPS_DISPATCHED.PORT", x["Even= tName"]): + name =3D x["EventName"] + port =3D re.search(r"(PORT_[0-9].*)", name).group(0).lower() + if name.endswith("_CORE"): + cyc =3D core_cycles + else: + cyc =3D smt_cycles + metrics.append(Metric(f"lpm_{port}", f"{port} utilization (hig= her is better)", + d_ratio(Event(name), cyc), "100%")) + if len(metrics) =3D=3D 0: + return None + + return MetricGroup("lpm_ports", metrics, "functional unit (port) utili= zation -- " + "fraction of cycles each port is utilized (higher i= s better)") + + def IntelSwpf() -> Optional[MetricGroup]: ins =3D Event("instructions") try: @@ -356,6 +386,7 @@ def main() -> None: Smi(), Tsx(), IntelBr(), + IntelPorts(), IntelSwpf(), ]) =20 --=20 2.52.0.457.g6b5491de43-goog