From nobody Thu Dec 11 19:07:46 2025 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 409BC2C3274 for ; Tue, 2 Dec 2025 17:52:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697971; cv=none; b=dLL38prWZQncAY1mNpuR5R6pQ0hEU8YfOyrB24dUxuwYndH4jk7kKPcpT3mhqeI3dytqTgYQzNDyF6EqGK6yaid77GmcIW4IU+6+wEZCV/h5r07IbcFvMM9desVQVSIibKFMJmoECSA41PB5VXWM4jyhQopyo7nPwXvqA3NLiMk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764697971; c=relaxed/simple; bh=+pOn+zu3ZMd+JYcU1w4+L4lKvgGjOMjt9xp2MKZedUo=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=Na0L7XeI5PGGKH3kJsQIfWG/mjFbAxazy5Zri8Q1cwXX61A5UrqwW/CURr/Gz1N9xGj0NNXJdNcrRSP2wZUaOxOCRL7kaqcoQgxshRbLtKoCxXiSr1vvncv22syk6DDsn72trrpHlJLWnrJ3tcSD2LnKb8EuuJjsxQdRUaDfBrE= 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=3gBZlsdH; arc=none smtp.client-ip=209.85.215.202 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="3gBZlsdH" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-b98e6ff908aso12793577a12.2 for ; Tue, 02 Dec 2025 09:52:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764697969; x=1765302769; 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=ymsXPDRF6YZ1D0Jlzoanxx7gKwtKybhdHB3aACDzbKk=; b=3gBZlsdH9hT5lEIzgOkoeUIJ0/84ID1k52WrQKjc/ezbEbQpcIdRroCVjK+1j2zHqp ErGT/DvH4uOEGIoDBwg5/dXCBChD3vW6znQNOJpeinJ+zdQp06hvo38DWTD1Fbc+BX3E P1dkvjVU0u1e4wJiEB8EhBkEx99qPfeboNDPbUqiK+7zsCISZlixHvDbXn/Euy79G5Gj MV2oOwG0kEc+lBTKwOVEVWIj31Arn43Cw7C429PgD5Ri0xe6pggSMnHn4GP3wH/NFgZ+ vk/qQjmAnWgKK1gDOrU90KqR8sLXMJ7c/w32Ez7SSyGb9LUSN7rCtQyzIztclWCnhbmb +x5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764697969; x=1765302769; 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=ymsXPDRF6YZ1D0Jlzoanxx7gKwtKybhdHB3aACDzbKk=; b=UXJTFW9ZdgTis4/npKH0+eT5mT1Y6CTPowNRXZgfWTvGLlNvTYMFoqUkUohGlr+EMS CYSmRACHpl8kckYvy3Nk2t28BLcslKYvlMD1FKk0G6cJ++MubrPQ/Xq5GZ84yjSL9geD +nASy20xGWI/Af6GTWrly4uqK7ea18IsqdJpnMFHx2NFBdKKf4bEFnRKMHoH2xNj+XQV abNGLrL3P9HQmgWts9DmeitquqmoUigvpdxVvMj13ULDCpJ4U5ZzPVqCUU+XukfC0atp CgAPq2gnMUFg2VZu4Ccf/EPNavJV5AVoZJfrlvhxl/VZxUBlyzrdwoP48kD08XQ4TQ9J jMgA== X-Forwarded-Encrypted: i=1; AJvYcCW34wrrU5o+MDa6ojsWrhS1pCR2bBsabwrng7qcLF+dy0irzGgzL99ZT0q7rSm+EoreSwv4r462GJBTxX0=@vger.kernel.org X-Gm-Message-State: AOJu0YzGL3ZU0UB0wq8z/gViudRds0/8BohlzVRFlacsUfN/kMbC9wgR 9oV9w0JcRHiERAwq7WXp/V5QaWe5oGtwZAAy4SwUN/r5zM1aZ/2Pra27K37E/DJxBd7wMfLc525 29qTrcFfhtg== X-Google-Smtp-Source: AGHT+IEHfjaTZRZfDMJYPck6kXnX1JBWaLcqkkhslMQleRPP0Pkq3lI5GI5FsmPDNJcncd51cq2pjG5tjEd5 X-Received: from dybpz21.prod.google.com ([2002:a05:7301:6895:b0:2a4:7f69:5b62]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:693c:8007:b0:2a4:3592:cf76 with SMTP id 5a478bee46e88-2a941894aebmr14804539eec.26.1764697969412; Tue, 02 Dec 2025 09:52:49 -0800 (PST) Date: Tue, 2 Dec 2025 09:50:16 -0800 In-Reply-To: <20251202175043.623597-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251202175043.623597-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.158.g65b55ccf14-goog Message-ID: <20251202175043.623597-22-irogers@google.com> Subject: [PATCH v9 21/48] perf jevents: Add uncore l3 metric group for AMD 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-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Metrics use the amd_l3 PMU for access/miss/hit information. Signed-off-by: Ian Rogers Reviewed-by: Sandipan Das --- tools/perf/pmu-events/amd_metrics.py | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/tools/perf/pmu-events/amd_metrics.py b/tools/perf/pmu-events/a= md_metrics.py index 2d1d25cb40b2..6542c334a82b 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -316,6 +316,24 @@ def Rapl() -> MetricGroup: description=3D"Processor socket power consumption e= stimates") =20 =20 +def UncoreL3(): + acc =3D Event("l3_lookup_state.all_coherent_accesses_to_l3", + "l3_lookup_state.all_l3_req_typs") + miss =3D Event("l3_lookup_state.l3_miss", + "l3_comb_clstr_state.request_miss") + acc =3D max(acc, miss) + hits =3D acc - miss + + return MetricGroup("lpm_l3", [ + Metric("lpm_l3_accesses", "L3 victim cache accesses", + d_ratio(acc, interval_sec), "accesses/sec"), + Metric("lpm_l3_hits", "L3 victim cache hit rate", + d_ratio(hits, acc), "100%"), + Metric("lpm_l3_miss", "L3 victim cache miss rate", d_ratio(miss, a= cc), + "100%"), + ], description=3D"L3 cache breakdown per CCX") + + def main() -> None: global _args global _zen_model @@ -350,6 +368,7 @@ def main() -> None: AmdUpc(), Idle(), Rapl(), + UncoreL3(), ]) =20 if _args.metricgroups: --=20 2.52.0.158.g65b55ccf14-goog