From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 4767B2D77F5 for ; Tue, 2 Dec 2025 17:52:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697946; cv=none; b=JluNiGdLy4H1bCxB9RpySh9NrB92dMT/Tm1y4PVX5e5jLU0PHPWePclLK5IQQ9Z1jPw5/Ykqp8U22/66fCw6HemcSXLTM8xmygdRMNpEBqe8WYz4twURePv0R/akJJgTmlrW/bVxS30pJxPSJ5Ynw6nxDCQxoLLWqXr4Vpen7wg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697946; c=relaxed/simple; bh=AyZA4nD7jh5kb1lPGF2MDaVZ/tkGQEyjyH8++oUHFGM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=S/5UX+q4iJxeIAbwAk+XhItLAgyghf+QsoxNKDDhLXvzoNTS+RLcWIGIQylcENYYbq2x7ggs1ZR1/8hHzKC4IHjF6/UX7qS4D4OqedlD2bJFm0SYPyiYfZ1Ouvs4pWfHwz/IBrJO8Jj6UnCpKRCf5KQKiW6aKiqAqSo50zwOlOI= 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=faKp60jZ; arc=none smtp.client-ip=209.85.215.201 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="faKp60jZ" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b98e6ff908aso12792715a12.2 for ; Tue, 02 Dec 2025 09:52:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764697944; x=1765302744; 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=6lWESTB2UTGcAg+Bqss+YoR/rSNf4J9eOBW+DXHV/2E=; b=faKp60jZtmY3yxYtU4oIAcP9k7qBVZ3QxYAdhl38/5kagD5YLQvluPVdQ+a6xvuxy9 S/9C54di55Jb5TOWxrEvmVgU/SvTYNTT8zp55s99yc2CE3ghasJefEOix2vELUrcwnYo HQ94Uhbbcprt3CQz7UU2K+TjHG1B+KEKZQnMq2tA/v5/jDkCubpDzUP+qM1v5tVG90KH FF2oNKsGc480n0ILft27hwR4p8G8Q4R5dz/W9/15nyC8JIJNPd/gQ5ED7r54Pi48kCbX q5/u3DQjV4Uw27zci/5SMjQryx/L2YxwUP4ssoLh4+oLDzht6P5Zd93oglnDC7UC1rmv I1eA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764697944; x=1765302744; 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=6lWESTB2UTGcAg+Bqss+YoR/rSNf4J9eOBW+DXHV/2E=; b=cVEfDYtrBDEY5DBOLBDN3aRbiHdRLVxXAnGzOz8iZbTB1/wzKZPxYzrg2j9XnFOM27 5TH2Eo3l6FO7jhxoLFBei17zVQwJZ/gXePYY2ckQL5gLYIY6yFxEYzp4yN1zG2Hz3CRE 8mZhHbOinVGhd+AFoMxZQukO8c2fs59mCdid6HhHAfntrkTMiEGQEPg2k8SZS/LtBZFa lMrk1f2rPYLwQ7B2qXGilVxvx1NVJBXU6E3pIcqgOLPv6Ra6kFeHqzJu1dQ5BJtYn2tO /Am1HpMryATHLWmdCzxlJjYY9/30gu/V2PaSPOobRpEH9QHsD5hbRndIcRwRSIDqkidT wnnw== X-Forwarded-Encrypted: i=1; AJvYcCV1/y+S7eZp3EDUsG6vb3icPNIzzaNBDLwG+szKXJgRiJnrbmogWd/Zim5spzFy0nwDaKS6GBsCu1wWIsIE9CYw@vger.kernel.org X-Gm-Message-State: AOJu0YwEvOeUb52Zxl7oe5tqNaNsUZnIgiEMQzvB0dRGDLkCeMrROoD/ rBPcRcOUYcZxEklGGJ6YUPrxHv0zUGeD49h+TP/9O+6SqVrF3QszPpCqOp+y1MvDLlJb3JoDhTx hbzCgF9dFAg== X-Google-Smtp-Source: AGHT+IGHRBUPQQI/Ixl6furUweurkhLLHHi+K7hWEgwf6CovRvn8iSd9kk5hxy9K0HFykKH3Edpqp6VZSQlX X-Received: from dybms17.prod.google.com ([2002:a05:7300:d511:b0:2a4:559f:7c4e]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7300:ec96:b0:2a6:a306:eff5 with SMTP id 5a478bee46e88-2a941581a8dmr17218723eec.5.1764697944468; Tue, 02 Dec 2025 09:52:24 -0800 (PST) Date: Tue, 2 Dec 2025 09:50:11 -0800 In-Reply-To: <20251202175043.623597-1-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: <20251202175043.623597-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.158.g65b55ccf14-goog Message-ID: <20251202175043.623597-17-irogers@google.com> Subject: [PATCH v9 16/48] perf jevents: Add idle metric for AMD zen 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. Signed-off-by: Ian Rogers Reviewed-by: Sandipan Das --- 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/amd_metrics.py index b6cdeb4f09fe..f51a044b8005 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -3,8 +3,9 @@ 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 @@ -12,6 +13,16 @@ _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 socket power consumption estimate. @@ -57,6 +68,7 @@ def main() -> None: LoadEvents(directory) all_metrics = MetricGroup("", [ + Idle(), Rapl(), ]) -- 2.52.0.158.g65b55ccf14-goog