From nobody Sat Feb 7 17:42:09 2026 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 76FF23A1CB for ; Fri, 1 Mar 2024 18:47:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709318873; cv=none; b=uMRuj/QSg9MByNtoOzxjQdTmndUDsf3U1nun77WoxjsW8mTTr1ke+pc4lo9csQePHN9RcF44pE3tMS0MAf/jzLkAMGBco3+OpfIzubMhy154X/T8Bg/yiaikTX9dvxnKnumRKfUi2tDhRJJnA0leonMCewiPFX5cN0jwiGs31XI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709318873; c=relaxed/simple; bh=Dfpdo2YwplSQDWWpMc73Uzmy+I+y4UMFYX3EUMZzsvM=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=a94qQvCl41scC26XVMImtrfoABsSAQgtBI3ElxpoK2guzL1EQ9mnACWcD6nYIl1rJXz7jlH3ZBSt3PgJjdCfq8pSIa16GIkKUNVTT0gZW8dnjSI9Me4Qwp1C0wa+MOHP2waPUQH1o/5fKd5Dk8oUG8CBazYEUcJXcuaQihCGr9c= 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=P/lklG85; arc=none smtp.client-ip=209.85.219.202 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="P/lklG85" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dccc49ef73eso4227592276.2 for ; Fri, 01 Mar 2024 10:47:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709318871; x=1709923671; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=R1z+XJES0GLGr0Q8oaGDYo7B4O7AcfZJJPh1SyEgcrw=; b=P/lklG85DrBGjnJvJCtcGNEFpzfLaJUIxPTojlYtHk25zI5/skH/M+2+Kq8KB9Uo8l T6XMcL5z+eQOxZKBx0DGVZ/mo8mb5awbK6fKZfqyqwgBwCL6Bb+YXLi3UsyQnmNzhn/m yHLH+o7v4f1G3ThXg7VqYXxAjN1x3FsYxNDOEfraHFgwKrvlN07LQ0dvHb+GFnhUPxhg 6e1+9BzYO1l1nem147r1x996ADOvDaZSkq1KUwcmoegCYhVB0N0k6knrgWrI6dnVXKRm 7OFUkrMc27wuQ1u9R0Fm1o5qJdwrTPlITYSaWZqcLyzDJ4mBcZWwEReBAiao2R1gvvoo ZXhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709318871; x=1709923671; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=R1z+XJES0GLGr0Q8oaGDYo7B4O7AcfZJJPh1SyEgcrw=; b=Z1dXKT2LfG2yiw59hYz0RL5UDZcsP4FPbmN+H5JTF9rfrQlGB//UvTOYwwAf1/5/MN EZ9TfPIa8/aWKfEeyDeMm7B8kqfzX5c1KxQOZdu28QTkb1Veqnekt0o1kULqS96mlHny EoHF7EiSIvBYYdIkvWlyb062VU411XStYFpTMmdWtQ4ona7aGWV/lAyfwJF2r1Ue8WCh 7hqR8ooYO/5+qn4jkkUQmTi9DSLBWJX2bg9W6ht3vHFwgBPEryrkFLdWSfBk0RjMBiT5 zQdpc2fF5sQZyNtpf1GzUWl1FZs+SUC1WuNEpqvDEbXvg14jSXI4TEWJ3SB4NTNY5D12 mItQ== X-Forwarded-Encrypted: i=1; AJvYcCU2Q4ePzmfectBzfxxXxkTvV1nRoyTnTPNKyZtNxmaZlBAJ804kZPOzHtFgOj/zYTDc6YXX9Cbgu4mDUIA30E6EOsGpmobp0gMD0Bad X-Gm-Message-State: AOJu0Yxxo/pnaycWeQEubaakJyeI8pkyKmbkD4MuS7ek/2QFE+nVnLde ISQeJRGR/dnq0bHxVT6cKl6f+8oeBiGC+JxK128R+HWz/LBv9Ou4WAT58zK9mqHvC4tAkenwLr1 LSK2eAQ== X-Google-Smtp-Source: AGHT+IE7swfGJwI3V9dzGAzE/TRnoKRvinMgKdeoehfNQbwjNw+Yq8v26zjQO8zcLWZiVt3TQ2jWkWBGSWwS X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:af4b:7fc1:b7be:fcb7]) (user=irogers job=sendgmr) by 2002:a25:2690:0:b0:dbd:73bd:e55a with SMTP id m138-20020a252690000000b00dbd73bde55amr91844ybm.4.1709318871487; Fri, 01 Mar 2024 10:47:51 -0800 (PST) Date: Fri, 1 Mar 2024 10:47:27 -0800 In-Reply-To: <20240301184737.2660108-1-irogers@google.com> Message-Id: <20240301184737.2660108-3-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240301184737.2660108-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v2 02/12] perf jevents: Add idle metric for AMD zen models From: Ian Rogers To: Sandipan Das , Ravi Bangoria , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , John Garry , Kan Liang , Jing Zhang , Thomas Richter , James Clark , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Stephane Eranian 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/amd_metrics.py | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/a= md_metrics.py index 4016ecee6464..fd3095cb5c1d 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_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 @@ -19,6 +20,16 @@ all_metrics =3D MetricGroup("",[]) =20 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( + "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 socket power consumption estimate. =20 @@ -39,6 +50,7 @@ def Rapl() -> MetricGroup: description=3D"Processor socket power consumption est= imates") =20 all_metrics =3D MetricGroup("", [ + Idle(), Rapl(), ]) =20 --=20 2.44.0.278.ge034bb2e1d-goog