From nobody Wed Dec 10 21:11:26 2025 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 C7D8E2C2365 for ; Tue, 2 Dec 2025 17:53:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697994; cv=none; b=IsXYm99We9HsHN5/TtvVAbdsZdUns5Ib28toD4ohq46MMNpAVclkeCIolAyip/byx7IqVz9KUjitCdtiEEQb+49PckX1hNzMSwhPFPJcvnLksuJGX4wuzfG1PWPL5pwwFE4TNOnXVemhYSuGRH01fsU2oMw2ZJdp6kDbQzOeHls= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697994; c=relaxed/simple; bh=zTw6DkOSVf0F/qSIutgGSo77kwsZlVorjN3UVKyYD4M=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=KLYd2O8xV9c1Ktg5Lc8kfdB+xL2mwAr0KbLs8Smj/z4ZWnZdFc1fBOU483Xwon5Dt9SxFkYWoWhnumd56N53mbZFDg1Vy+WoTQBc5mpZ8BxX0hut5cgkvDwa6HEpAcQWHrbb4PiOHiyjhnOwVCULIFC2Z5/BuOKFneorB6YJnPA= 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=uazlIQ56; arc=none smtp.client-ip=209.85.215.202 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="uazlIQ56" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-bddf9ce4931so8482675a12.0 for ; Tue, 02 Dec 2025 09:53:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764697992; x=1765302792; 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=laLU+bqUZ9A8+QjLntZJgzdut2+Z8o5wBJOg4wKYbQM=; b=uazlIQ56lMyrFXr8g4CFNpQv066GmTBBfmXPRVAliCZf8Re7Jo2voq7jYUSVmYSjjA PyqN8ReET1aRmlN5Jf5nNTJQPNygCvjonsbudJRR2krRLb98EFUdWHAXeccvTPSHww+i e7IEDIgHCfpG/jzDWF/dJw3dl0UcOaGAKIVUZgHh3rEU6oF3RUKhUhuRA1tpGfVau3xQ /nlXukulMhZc3L4R6GA4Sd3AuGOFHAxJwwnF4E3ckZo+mG4xQXVyK90qzMq2A6KBqdOW eGAlK/BM0JgvmcmmWjTLw0k+ymPKFk6Yq9Kmx08xHvqT+MbWCpHqcdFx2UzlyP6PVIrq RG5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764697992; x=1765302792; 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=laLU+bqUZ9A8+QjLntZJgzdut2+Z8o5wBJOg4wKYbQM=; b=CaONg5+7pTEu5z3LJy1bvCPsxBNLPvkAIo5t6t32XH+lrT0ScKMuPypDOBjSHM57E0 zZkDm+2QQ7U72PA2HeYLFiT0/pTd+IjbOog23tVq7eqyjkdrDf1xr9ZpGJU+8bA8GpOI tat4qiLjIke2rZT4bdoFamtuymbVtA24yQt7bfR36yAAzinL7fnW/28zq33GlxOsorLe +oy5eIqpVa0yrbVNejXX+7MqtK9eFvTAnuY77fq2qVEj63hsJ6ggKFbfY7jlB84NTXle Fx8SCVUzirLKA+pc48HKxBPDMb1Q7ogzbV12tyRZ6b3bY5kiWL9pysbL4EI6zVEqw69g uLEw== X-Forwarded-Encrypted: i=1; AJvYcCV2S+BnL8ZDGt8uP9ZZkaN9Lb3CZE/WYLT/jgHFId/4c1PCiWHzSa/QwWhjj8QScEbWoRLEq8f54jdbiHU=@vger.kernel.org X-Gm-Message-State: AOJu0YzP0uWzlMjOvOA+IuWKCl/2kc2HGSoxla8gjcxkghRv6VPnXcBH cK7Yv1ZwQDOcjHUVekgp0uddLvXIQSg2BT771qoHWia8u3i40skY0VWnAab0FMFD1a7hqeoFLWd ZXOK2t9FA9Q== X-Google-Smtp-Source: AGHT+IH0f740k1nynPkNZrGUCMK3taQuASVA8hxswR0DLqFkIfrVi05SRxI3QobJMtTWtRjWRWhckPqPEXmX X-Received: from dybue14.prod.google.com ([2002:a05:7300:f64e:b0:2a4:7a56:1730]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:6d21:b0:2a4:3594:d545 with SMTP id 5a478bee46e88-2ab8fb2bccbmr225721eec.18.1764697992140; Tue, 02 Dec 2025 09:53:12 -0800 (PST) Date: Tue, 2 Dec 2025 09:50:20 -0800 In-Reply-To: <20251202175043.623597-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251202175043.623597-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.158.g65b55ccf14-goog Message-ID: <20251202175043.623597-26-irogers@google.com> Subject: [PATCH v9 25/48] perf jevents: Add idle metric for Intel models 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" Compute using the msr PMU the percentage of wallclock cycles where the CPUs are in a low power state. Signed-off-by: Ian Rogers Tested-by: Thomas Falcon --- tools/perf/pmu-events/intel_metrics.py | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index 61778deedfff..0cb7a38ad238 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -3,14 +3,25 @@ import argparse import math import os -from metric import (d_ratio, has_event, Event, JsonEncodeMetric, JsonEncod= eMetricGroupDescriptions, - LoadEvents, Metric, MetricGroup, Select) +from metric import (d_ratio, has_event, max, Event, JsonEncodeMetric, + JsonEncodeMetricGroupDescriptions, LoadEvents, Metric, + MetricGroup, Select) =20 # Global command line arguments. _args =3D None interval_sec =3D Event("duration_time") =20 =20 +def Idle() -> Metric: + cyc =3D Event("msr/mperf/") + tsc =3D Event("msr/tsc/") + low =3D max(tsc - cyc, 0) + return Metric( + "lpm_idle", + "Percentage of total wallclock cycles where CPUs are in low power = state (C1 or deeper sleep state)", + d_ratio(low, tsc), "100%") + + def Rapl() -> MetricGroup: """Processor power consumption estimate. =20 @@ -70,6 +81,7 @@ def main() -> None: LoadEvents(directory) =20 all_metrics =3D MetricGroup("", [ + Idle(), Rapl(), ]) =20 --=20 2.52.0.158.g65b55ccf14-goog