From nobody Mon Feb 9 08:55:54 2026 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 42E9E13FF2 for ; Thu, 14 Mar 2024 05:58:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710395932; cv=none; b=CZTIboE4Q+QgPvd4RqM81qiurAUx4YRODdKVIwzXQ/BhjptnYtwtAX+B8wVnM6Ow7xMA/KYnxFivRghRIlFxHD3P6pc5ZvYC0mJkt3q6IAxY8iRa24+ooUFg0uGlXvctD9vWHCFM+Gd272BB0XmSspOLIdEOBGNKpf/Bh8WhD88= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710395932; c=relaxed/simple; bh=ANNGBGcZ3vDgNq3zL21zrHIvWLxXdmT224ZJ8sCgbXk=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=iEIaXNaqcsxhfI4VAHiwvO3Kv8P+aCoeGvv6H3CSugCGfvAN0D/FGnMr/MlHJ9dFi2rGTYDQCuAgImMDqpNVM2+N3p1fOe74ZyQcFtMkBqTZ0IyPqnKLOEq3diiw/GcwXWqVostsdss4Pwsw8XHO+BRH8V0SO6If4he9eyWe8oo= 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=IgvQmxMm; arc=none smtp.client-ip=209.85.128.202 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="IgvQmxMm" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-60a629e2121so11859427b3.0 for ; Wed, 13 Mar 2024 22:58:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1710395930; x=1711000730; 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=OEqFUQsewVgNTMEeM5wU4wFjtSmvLCXeb2V2OfeYmrA=; b=IgvQmxMmCCmcOuj/Cx6M8n7hVRHZ+64QVWIp1umzp4RWmVZlBKKlmNJlzOMhiLAKgU D2ehwpsf3jngvFbVUMYBsflj/GqFhSBes9fPwrXpRAlbs7hLwDC1qhu4CerFWh+vE+2E XewRJ/xPXUerSwhyoFsKT8lVDA99JORsRCNYHw939BsEaBWLURVle/CzrV0ExG1S/irc 1vc4zWfxjPQ+mt6sKxvUBt5Gt26AyDxnxD1bb9qbpo5KSAjlCs8p6WIGa6/WMTG0Ry5z ohWBOMRyiyijPYl7Nk7LCbp2vJGfk8mwJPoB+ULQpjDczC7gjFnLmIEPPzbzauphBOHG CCxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710395930; x=1711000730; 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=OEqFUQsewVgNTMEeM5wU4wFjtSmvLCXeb2V2OfeYmrA=; b=XmV9JZ1MAWEdE2uC3p/VMFP4IV3vTJtOeIiAvF+3CmBd18OWPGLQes1bsSuFdy9wvP Ehkfon6jP4VyGqmytp61v4/v58fWlvbMYE8lEd/r9a3KNx3vLPbPJWHZMMkxNo8IH6+M GrNijTuP4i4KOVfH+ghkbCau435oRL2w/xuLJAvpUM486XYaYbD1LqfqjGw+ElJfRcF9 MnvJGnaJNZTCKBo6caEIeQ+HX8c888qh2aB0wENgj6Ig5Cssb8PBNrm+whQ2VbgomOKy HY2jPscMrpISompdzcmjVnqYgeWqscFJEIYvTLImywNm3u+Ome6mz8DVtTZ9tE0mz9VX dFGA== X-Forwarded-Encrypted: i=1; AJvYcCUeJqJVvbt8nDlc4xwQkh3Ke/5hque4wZu8THG7hnYWak8hrjy3h5BLAxBhKN7JUc/y9/MADv/d9WgDFpVUk8AauO2ibOFyTiHwlIdY X-Gm-Message-State: AOJu0YyM7zs7OWb31jrShT++RPVv75aKUQn3kP0ImcecGbirF6j7Oudr UP0GprzlUS5QyeCLcYgaB8Fnq6is6suqcaSb084n/qt8acFfY+1zjxDd7B2iWO0zajW+8q+cW8r Djcbdfw== X-Google-Smtp-Source: AGHT+IHT5rYavCu3O8x9OWfHu1PU/pOaCHZYG/nQxLnQ3Zyb39rA6u658fANhWXSCYfWQxXIQEfB/afY9/d3 X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:449f:3bde:a4cd:806a]) (user=irogers job=sendgmr) by 2002:a05:6902:1a45:b0:dcd:88e9:e508 with SMTP id cy5-20020a0569021a4500b00dcd88e9e508mr252693ybb.5.1710395930282; Wed, 13 Mar 2024 22:58:50 -0700 (PDT) Date: Wed, 13 Mar 2024 22:58:29 -0700 In-Reply-To: <20240314055839.1975063-1-irogers@google.com> Message-Id: <20240314055839.1975063-3-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240314055839.1975063-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v3 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 fd420466b999..e069b95d6470 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 @@ -12,6 +13,16 @@ _args =3D None =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 @@ -55,6 +66,7 @@ def main() -> None: LoadEvents(directory) =20 all_metrics =3D MetricGroup("", [ + Idle(), Rapl(), ]) =20 --=20 2.44.0.278.ge034bb2e1d-goog