From nobody Sun Feb 8 19:54:58 2026 Received: from mail-dl1-f74.google.com (mail-dl1-f74.google.com [74.125.82.74]) (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 B1B4732C937 for ; Thu, 8 Jan 2026 19:11:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.74 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899508; cv=none; b=YYL8KeC4B6qFR9o2+oGx9PFCChdGwGZm0ptDhXXFF+k6Y1eifUmr0WFq9MJ8/VbLY5NbPrDlvg9TFyUjXc7AGawqPZksqORfblTczONgYm0gN566u7cNVJVrCfQLfjwemLStGLFnUfx6KE3Y9Sv0jsr9BU+UtsF7XLc5mWQenU4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899508; c=relaxed/simple; bh=ARE/Q2G89TxiCVGgVTApgtKtNEltPTE3mlntYnL0UpU=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=RIHx1Vbre3Mftc2xdc+Hkt04Isr8qJSggie0dq1cI704yG7NATT23Bkd0oL1W3kGzuIgnPbpSuNN4HsIW0VyRlVO0w/rlxw2UULhSv5g9xyz/tTTHBuxVKpaKau0bNRqGomjsF1DxsQDh3GMsU0GR2VoL6WdaFf0oKkgY4apHrU= 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=fWPwtOsq; arc=none smtp.client-ip=74.125.82.74 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="fWPwtOsq" Received: by mail-dl1-f74.google.com with SMTP id a92af1059eb24-12055b90b7bso249719c88.0 for ; Thu, 08 Jan 2026 11:11:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899503; x=1768504303; 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=rblm5KSHXE6JkXlIc70Vz9oUvY6uCMkftvfXFaxGDFo=; b=fWPwtOsqhf5z4icDx8aHjASzk0M/OfUaxRMjIceUys6eHb+SeboVW3EbBc3wyeRKl6 nVZi1Q1AEatkijklQVNk2BfG5CaSqXvrS+IiZtaXKKj+I1QOOGW5+FFxWWTotYMJWg05 Iib5Q40eL1oiyfnnwYYvZ/UCESuoZ+wcPeUrUmvwUA/kZnBhQolp7QNinEcBYlFSc2pq kgc69+8swAEgd9Y9U/9YuAS3vz7ssh23WnA7vDIJlYFVD0yYdl5lJXcV0bCMFW54e5iT ogu5LHOXCxvokQvc8cff7HWQNYl4X1KcNOmmkgi8sQSkYh+DxFYtRqtyxrkomSoUdhPu 2Stg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899503; x=1768504303; 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=rblm5KSHXE6JkXlIc70Vz9oUvY6uCMkftvfXFaxGDFo=; b=LSJUcUBfJKigtLI1qAutcy17RLqh8cTJ4FJMZH6QW+PFOYnuXyAb7Viq0dDbfV37OB Jjv9OrARnnkmHbIHF3KC26XYOc4osWkSIb0adBMBc/ll/8pLdlEtSnjzLVnb7OOmFJ+R caTi6FFsU66VpX0bzR1hw5XgGgHZxSF4H5plrA+qbD+AFN7z6+xQNBUeYdiH4W3VtOh2 delr0pLymC8XCITknaCOZgcdNe4yfuxOWcZGK2D1AnIpORzzsqMYqVqvbCGKf0SrA0C6 LJSLj2BfXPBpQCosEhWTQesb1CG6HhCeNuVGz6LylKpKSndHVn3fYXOtlErojSrbNtFX 8jSg== X-Forwarded-Encrypted: i=1; AJvYcCVhwGHwfuZUPQHMfBfhp5ljdRihph7fXbpJVvDomH17dIh12GxrsorgYfBmp7eV+1au8PzP2eIxNMQJbvo=@vger.kernel.org X-Gm-Message-State: AOJu0YxnSSkEwiYia0Awr1jp5PItrNDsG3iOIfyrug9CNHPovWRQrN/X Dxg5549de6Rk5rdw7RGSMdQG/P84Y0aryPP4jbAJFJd2o5ALQcSJZgCqnfk+2cfAxb1Py2Ewtuj KTp3aSr6fmA== X-Google-Smtp-Source: AGHT+IGycfr/V1MBVAvRRJu+cPILshDBpdVCcPH1A4b61DFn/b7LNM1rkSXlN/gpZHLmomvyiXzogQ1MjY34 X-Received: from dlbuy4.prod.google.com ([2002:a05:7022:1e04:b0:11f:3f33:f0a5]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:e08:b0:11b:4351:2687 with SMTP id a92af1059eb24-121f8ad0889mr6464293c88.17.1767899503061; Thu, 08 Jan 2026 11:11:43 -0800 (PST) Date: Thu, 8 Jan 2026 11:10:39 -0800 In-Reply-To: <20260108191105.695131-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260108191105.695131-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260108191105.695131-10-irogers@google.com> Subject: [PATCH v10 09/35] 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. Reviewed-by: Sandipan Das Signed-off-by: Ian Rogers --- 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 a4ff88de08b5..d71997177239 100755 --- a/tools/perf/pmu-events/amd_metrics.py +++ b/tools/perf/pmu-events/amd_metrics.py @@ -317,6 +317,24 @@ 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 @@ -351,6 +369,7 @@ def main() -> None: AmdUpc(), Idle(), Rapl(), + UncoreL3(), ]) =20 if _args.metricgroups: --=20 2.52.0.457.g6b5491de43-goog