From nobody Tue Dec 9 03:43:33 2025 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (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 6491030FF08 for ; Thu, 13 Nov 2025 03:21:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763004099; cv=none; b=HlG1OVYRwt9OyjDOKW2Jz0pP8sTrh84opIkMhA2l676I2I9l5iyUkhbqc2s5Epm55/79HPKIWgA22yHyCeYK0XanPcumtBJHYzMf+AOMKn4kMUa5yKdaqoPwW97IPsLpmE19MXavFkLo1hLGNP6dRqGTw2lLNk5Qjg5PoOEfsI0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763004099; c=relaxed/simple; bh=aDJn+LTiM/YgdbHZHL1Ft9cRSezjfKlAKOa73srLeAs=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=a1EcE8omqezWYcwG/2IsNEdHnQSpdIZ7mx50o1yDZ1/JjxeauDOwTn6uNO1ZmOqJ7ZeFKs99Y+rHRjHbAHLV0vp5pF9GUQULJcTbn5kKtdLYRNVzbOTp+4X57NnFo5S5qVyv7IDyprW3rwhbo9cV5WumZ5rPhymelt2inzoEpnQ= 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=08GM/qBd; arc=none smtp.client-ip=209.85.214.202 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="08GM/qBd" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-29845b18d1aso4341465ad.1 for ; Wed, 12 Nov 2025 19:21:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1763004098; x=1763608898; 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=IEiWipmsRatrVKikhSYvmz9kdeyKo1FjFHI4OKnBoxI=; b=08GM/qBdV8Ts3rx2opARd8rYcE+0J9A+lXNh5wMQEKcZ2myK6XFK7ZPIntkxyarxcU e/447xm368DM9ucrHv3Kc2b80Q8SgYXOGR8L/N28khcd+Y/QtF4tBo+/SLgzOyWHJmtd gxJMshyLJDEbYkl3EG6uSZv0hJkGa3IqaNepQn74+07OkXNAA9iOs4aRNt/nR3jVjQKL VyACEChyjLdyKIwaXPvQjjkFqN2ivkQRiTeePRPXvb4B1oWOaf2+TplVSFQDStuom7Rt lPr8xkY9jZenp7yo4qBb1VT5PBXcNOBVGB00YdrA9mQOzcjtF3++xRMFRtTuoSFkCO7+ 7j9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763004098; x=1763608898; 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=IEiWipmsRatrVKikhSYvmz9kdeyKo1FjFHI4OKnBoxI=; b=nbfT60WTKaynWNjQFx9vYxegmxBIQwRHXwThIIQX31XgjFB7o40f2jsIw09qYNoEjb UQjvSzYIjzB/JXiv+CiOP+qCcpBH8An86CUgXA6af3onxFD8+zV8zqulWtw28XWdFWO6 DYcAtOR8m1fJdhBZMz2bILwamf7q9t8xvaj6YnGayLXIwRQalPesytdGXB07efsl+IP3 zGyC9ZfF9+vtTtsav+bDzDVqJ69NFSdGCL3sIrmjyohBqtGr2azqVuZvAAynQcsn2ATg UvdCI4pQo1ov3sqszO1harhzzDNCe8eKITehkyGSygCRbmAEII6f5/BotyxW9loy3P3j tLTg== X-Forwarded-Encrypted: i=1; AJvYcCUf+X2Ark/JxwVxsDsD8uTbkEZ6isfsHqnCDLsI/bCnFheExxnRBTl0iQo6Y3KEsqg7y1vPqC5YwMmsusM=@vger.kernel.org X-Gm-Message-State: AOJu0YwaQiZt2vuJ/K1U3cERmSZ8QNCmRlFm/B/CWhpUZI1/tCUNZb1/ 3ua1zeNl9kSSQ/7Fdf3Aqxogy/+Rkb1lLrVGtzRqXhhTQxwVo/Sc6pk7iYXBVvbxqvYdLNpxSFh bAwJzq6Y9pw== X-Google-Smtp-Source: AGHT+IH2DMevccyCiQ/HJCM5gtbxsXuQ+aGSiyEHjIehf0KYnZ1y3roqGFRGSXsTFZ0emzyi5/2YQa0gtFay X-Received: from dycpg3.prod.google.com ([2002:a05:7300:dd03:b0:2a4:64c9:8bc8]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:da2d:b0:295:5116:6a7d with SMTP id d9443c01a7336-2984ed2b8c5mr63472395ad.4.1763004097576; Wed, 12 Nov 2025 19:21:37 -0800 (PST) Date: Wed, 12 Nov 2025 19:20:11 -0800 In-Reply-To: <20251113032040.1994090-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251113032040.1994090-1-irogers@google.com> X-Mailer: git-send-email 2.51.2.1041.gc1ab5b90ca-goog Message-ID: <20251113032040.1994090-24-irogers@google.com> Subject: [PATCH v8 23/52] 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 1592d7db2ac7..d748b5c1d791 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -479,6 +479,24 @@ 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 @@ -515,6 +533,7 @@ def main() -> None: AmdUpc(), Idle(), Rapl(), + UncoreL3(), ]) =20 if _args.metricgroups: --=20 2.51.2.1041.gc1ab5b90ca-goog