From mboxrd@z Thu Jan 1 00:00:00 1970 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 F0D49322A0A for ; Thu, 8 Jan 2026 19:11:52 +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=1767899515; cv=none; b=TeRzvbtigqWo97qXYcL8f1HAH+AxzZDPyy2y1PXAaBgHPOoQhxYoz/6kYLg3WkV6wKGdySewxFPSRbXBXHcyEBFDqwVz58m3K98KmwgWCDGtHBl0bNtOrShQQNJDVgmN9xrF1nP23xItyj0D9B9XYX1B2ps/T+uRINK0zNHikbw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899515; c=relaxed/simple; bh=4pM2tdD652IcZD8wzPhrvfuqgRtHqz0V8U/ipI7rM2A=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=PHuTia3zXKfKCmD/cE214lkT87Z2Uv2/jJ1I9T4X089uHE3z3C/VyBZkw5NIxDc/bR27k2Cq2OzidIFUHxQIidTyCQH1r1BU6CtUmjyTIApaYOXL/GmDMeMMYY7QaZ+i5thTZOcNL65T4jtsvMzs7OnUTfMlIOqaoqTzhp85dAU= 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=iG/cq0kM; 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="iG/cq0kM" Received: by mail-dy1-f201.google.com with SMTP id 5a478bee46e88-2b0530846d3so2780717eec.0 for ; Thu, 08 Jan 2026 11:11:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899511; x=1768504311; 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=L4BlKuWwvBoHJMjQiget3mJt2hAfQGaEdqNx0fF+IWg=; b=iG/cq0kMgUx0Nbq+2jsDgsUJFVR6/R3hvmO/7eSuFJKAKouABrEgyHpdn1ioojyDqh fgHQmENIFBpxKolgytZDO3gJuPbzZBdBiLfx+6gk4UQqFdJSK75SGeGbmzHaBQHMBABJ uyTSOsm4Zhff8lAS0lpERfqykH4wiRaQfhec783HW9ZXcZU7Fv4LxqmU+0qRws3OYoeZ krBtIT+hJiJeeytgJsTtUY0HlMq2bj4iHWSLByWPQ71i2+Hf/W6N/AfbtnqIQM4jALSq o1nIK2uEkt8MWAVx+/T9v2cOdP5XdV+tLSfuNYeQKctJxlak+rjFQgAqL9kuXel/JmB5 hUzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899511; x=1768504311; 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=L4BlKuWwvBoHJMjQiget3mJt2hAfQGaEdqNx0fF+IWg=; b=pCrxiJpKQU84akLUOSmhJ26uWUvUaubtFGV6hWmAUyFsVStx+max3QYWHNAC1WXNWc 9AXlSh5FYdho9exmhgbvufL8kIZpE85UBpHs8Qh2SvXwAbPg6uIOYo9RcbfJ8UesF8p1 /GugFYYuD4VVx+Fh7s+u9lxqeDX4rhitu/zkZ8KymHskRvI+N32fYga+IlBjCZXyDO7e O0MzcebLVx9tFxyKDAxgPo7iEwgeMSAoMmjlYMNhIzC4CgGZTBLmuJVPO82Gl7Ill2cq iicQneQxiwH6Fq/JGiZDQYT6WGuNYzw1EKEYr/j8YWyACK0807TC4BQl54ho7spxcFc+ nH9Q== X-Forwarded-Encrypted: i=1; AJvYcCVUzLllypJafbdcV+S/DyKGFG52+vumV/Ml42l9JCWWRowod1MfXe0EzQdRJriPCD7gJR0dL8Sf8Ewzo2dwe/hP@vger.kernel.org X-Gm-Message-State: AOJu0YyyhV++mg+vQQRmlzWs38QS9wqAUyUbUZlACAhZlE/wF1x6hqdh WXOH5pCToRRoHp/lXBfpn8TitmgmAevnybkBP2W2UcbTnqIDun3JvOxC056aJTSPZUhvCtvMfJ9 Mt+p54FL83A== X-Google-Smtp-Source: AGHT+IFBdZ9YGtBDf20j4auioQ8fS0JHTCtar4eY+lDnx8UdCh0olNr5kj0gIYkLSwrxUvuXTjL9a9JTc+3i X-Received: from dycrq5.prod.google.com ([2002:a05:693c:2c05:b0:2a6:a19b:9a22]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:693c:2583:b0:2b0:58aa:8852 with SMTP id 5a478bee46e88-2b17d2b0aa4mr4993331eec.22.1767899511325; Thu, 08 Jan 2026 11:11:51 -0800 (PST) Date: Thu, 8 Jan 2026 11:10:43 -0800 In-Reply-To: <20260108191105.695131-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@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: <20260108191105.695131-14-irogers@google.com> Subject: [PATCH v10 13/35] 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-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. Tested-by: Thomas Falcon 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 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, JsonEncodeMetricGroupDescriptions, - LoadEvents, Metric, MetricGroup, Select) +from metric import (d_ratio, has_event, max, Event, JsonEncodeMetric, + JsonEncodeMetricGroupDescriptions, LoadEvents, Metric, + MetricGroup, Select) # Global command line arguments. _args = None interval_sec = Event("duration_time") +def Idle() -> Metric: + cyc = Event("msr/mperf/") + tsc = Event("msr/tsc/") + low = 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. @@ -70,6 +81,7 @@ def main() -> None: LoadEvents(directory) all_metrics = MetricGroup("", [ + Idle(), Rapl(), ]) -- 2.52.0.457.g6b5491de43-goog