From nobody Thu Sep 18 04:02:51 2025 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) (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 0CC61229B12 for ; Fri, 29 Aug 2025 04:11:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756440695; cv=none; b=EcUGDK311PvaM2m8A/xbF0VERVpXllwyV+5DnazFIef5cE3UxT24Rmya4WmxaXK2aOP67wjae6KbnE3IzJDQOxHVYItWstbBXmcVbig8edx/POOcd9c7F5AFQaqatJjcmuRvvrK6r+ilj/A0rYNUzh5Syca8hH4eBFUpZ61nvx8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756440695; c=relaxed/simple; bh=SpHZZtQwYfFVz65RxEhRJc/KtRlCGOt7JG0Y1z/14D4=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=g0oXNma0ajOmXhGMZ6WB5xG5Js+Slgl94Tl3uqOTLMuwTpN1B04dhvyyj2h7ZiCT7eyLbIN4l8BwLDSUA47qx+9mrcncRhO922OP8VBEddi0IT/9h94ubDbDWd3z6q37F4wkASffiqUIXNH3HIOXQmcMWsJmWdUZXUrjP7qMT9U= 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=jzqAjMGL; arc=none smtp.client-ip=209.85.210.201 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="jzqAjMGL" Received: by mail-pf1-f201.google.com with SMTP id d2e1a72fcca58-771b23c0a6bso2877030b3a.0 for ; Thu, 28 Aug 2025 21:11:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1756440693; x=1757045493; 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=UPsOCDYWJwD+xaSWmJwCuK47irDUPi7hVVc5CkF1JJs=; b=jzqAjMGLSkUpRAXTBjqN1I3HhgBMN2sZWC+FCHSdIouRmjqHVOVi6qZ94+yfy6Juch n1trr1n30NkTcxrn/yRpwhh6a2YHikrbK78F/ZQNPCUnenWROKA6s3OL9yKLqunFNbdB 1KrFJh3Bf9/NKjmb64X9bB8tAjKdlZpJYbYMW5wj2UMHNeSnYJ+/qnfMTDE9XQCO9iuT rB2m48KP2BNWvQUpCnL8BBgqAWNEgMo1w8Www06uF2vcv9oBOVnAPDcjiEWSjiAHuQjt BUk2By9FLTAKs8sYafKfaffU9RN3PbJzei6D71mA6isO0TtUt0/1TinXNXr6UsAAUGWl Fjzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756440693; x=1757045493; 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=UPsOCDYWJwD+xaSWmJwCuK47irDUPi7hVVc5CkF1JJs=; b=JHk2jq6JC8Tl3KPtiZlGSHHjhq9ieHAA2xJJIALhMkAxA7wIJckLZbRT9xqlgp8mTM b6/XUqgFDOubG5HdPVoOXgsk8hn87vnDpk63OYEmbxcrdOMxDOuglhQjm8cMMBm+6n90 Sv7ZfQkd66qFOPEQAcNgfOXg56gai3BVBB5C8ItKUfk26JVNnuTz1aSUlFE+C2sSF84Y ox6kHZAm9rMHRRpsfAvog87Y02GLFZzEmJHxoWH33oGD6weBE+TuB+eMkcmjw5pC0eVB WQAMp8Msxx5uz58h+0SJE5qrcseFl9fBpbIPjMfefzWt1yzrdwaoqmVWxJ5LHd1UwRoO qAlQ== X-Forwarded-Encrypted: i=1; AJvYcCVXYCi+aJ/PH6cz3NE0P005XsauQlAB8L6SLemCv1qNhu9rxP9QKd7PpAzIRXZj3gRr0jiCbgLFVMFlLb4=@vger.kernel.org X-Gm-Message-State: AOJu0YxjnuBsl298q9wLmm/+R+9sSozbLpzo2LAL4zsEBHbTzGhI0eHg FsaNyMw0TLiuAhy76CILYqNhUEz2cPWX6fC4VoXMeFG7FWokM4TyyIR8ED4hxE2NdaFMJ4uSKpe 8HPbRXesUEw== X-Google-Smtp-Source: AGHT+IFz6NP3gaHSWZRuumn1l8T9ebsDEGoBkwBChpO4vMF/HUMHPf2iTXTP7nEWM2eSpRC637e/Lg/a+em5 X-Received: from pfbei15.prod.google.com ([2002:a05:6a00:80cf:b0:771:fbc3:2406]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:929d:b0:771:fbb0:b1cf with SMTP id d2e1a72fcca58-771fbb0b2b0mr17834069b3a.17.1756440693121; Thu, 28 Aug 2025 21:11:33 -0700 (PDT) Date: Thu, 28 Aug 2025 21:10:43 -0700 In-Reply-To: <20250829041104.4186320-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250829041104.4186320-1-irogers@google.com> X-Mailer: git-send-email 2.51.0.318.gd7df087d1a-goog Message-ID: <20250829041104.4186320-3-irogers@google.com> Subject: [PATCH v5 02/22] perf jevents: Add idle metric for Intel models From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Xu Yang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, John Garry , Jing Zhang , Sandipan Das , Benjamin Gray , Perry Taylor , Samantha Alt , Caleb Biggers , Weilin Wang , Edward Baker , Thomas Falcon 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 --- 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 df4322ec82d9..0bb28f4c8316 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -1,7 +1,8 @@ #!/usr/bin/env python3 # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) -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) import argparse import json import math @@ -11,6 +12,16 @@ import os _args =3D None interval_sec =3D Event("duration_time") =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 st= ate (C1 or deeper sleep state)", + d_ratio(low, tsc), "100%") + + def Rapl() -> MetricGroup: """Processor power consumption estimate. =20 @@ -68,6 +79,7 @@ def main() -> None: LoadEvents(directory) =20 all_metrics =3D MetricGroup("", [ + Idle(), Rapl(), ]) =20 --=20 2.51.0.318.gd7df087d1a-goog