From nobody Mon Feb 9 15:08:45 2026 Received: from mail-dl1-f73.google.com (mail-dl1-f73.google.com [74.125.82.73]) (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 ECA2436B042 for ; Tue, 27 Jan 2026 18:46:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769539584; cv=none; b=CMN5XbPy3m6KCqpPItLnu+0FUjhqJXwufjtqK7hBgOwpc1Ko/bmStCJmhkVA7Xcojs8oIZROEBxD4zsy531K3M01LJPUlNWItdzt8FUddFK31sKKqOofwT3GqnWUbPOunRdFJvshZ3NKDRilEAJ9TaUV4onnMqvW45/M+GbxVjc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769539584; c=relaxed/simple; bh=Sr+0utK0tNOs2nzfxd6UaoFEVfN9d6C1I9sdXtbKpqg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=il8raAKCQ9iZ12RRrg45Vk5a2YmNSAF6spBU0LhWY90kWV1+eH/YqR6LUzfKoelRkXKyfqA/Uth4DzOBIEP8r0omfBxndmrIR2l2V6wl7fqrWdAduIxl9enryapEJYRrPzgxJsOB8oJJcCgLNfwQHEygkpMeTMTpT8dV5zVUkEM= 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=p1orKiuM; arc=none smtp.client-ip=74.125.82.73 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="p1orKiuM" Received: by mail-dl1-f73.google.com with SMTP id a92af1059eb24-1247bb4db53so7859161c88.1 for ; Tue, 27 Jan 2026 10:46:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1769539582; x=1770144382; 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=yAo1MILhGnqZNbLlgKzWKgNCypTb5sxkZ5UVUsguhwU=; b=p1orKiuMg5IvS5tFwcqxkK7NDMuV45sYyxxczAQZUHy58nE3cS6RswXrObYTAsO62x A8YQ0fCHuOyU84dsuXTIMZlYZyQqkVWoLkuENjOrH3Ans8pj45wd3BsqW31ciEqMuxX/ +cAXAy0zmwNRY3PLQc7RHHVu8OhSOx4SCmlZET35zl8Fw5vkzJMagH6TH7/JR1b4NgR9 OMBd5OItFVUoA73uPARJ+OdLkKFIPledCVzx8vyIcl1isbANBwtMARD7SnVYFQqVjNRG oikayJug/2cgtoEd6oPdQ3Wr1uFLxXy5yWjkcNW/zWqyW7uFbV1rx5QVLArg5TLnEPYD dAXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769539582; x=1770144382; 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=yAo1MILhGnqZNbLlgKzWKgNCypTb5sxkZ5UVUsguhwU=; b=CJou+E75qLm8as4ZIe5UplH4jG08b6xmZLMQLJTgIOhUDvdQXMPukbMG9ujkR1u+Xp 1Ew4zSWwiZLIhjvj1nqGJ/8X080315H5caw6ey4Q+Se1HxJhQ1gVwPNakJwr4mLEcLgr HcL3/EMtgriVZ5xrnmd7CxojEfRUP+N0Nv14iCrHmXya0jYmNuOloLBioS6FOPTRVn9l xeidADxxf3Y/D8Ozr3xEYpVrzn/bjSfJJpYA+E4utoy8VvTFIbOj047P5gh8lybL8ZCQ vUEx+sP4kkamLg3WHy4yn85kwUMUehYm0wbRU6SxvyTw4W77wtO61Pb2hQtRdd8IaM6d Zyng== X-Forwarded-Encrypted: i=1; AJvYcCWrN76P3Z4cPwMxIvtd7iYnmDumTCeGf/FxKosMKwDqrlEfq+jQ762eBw/b9PrVm8KLNz6VM8rIZkwYwuM=@vger.kernel.org X-Gm-Message-State: AOJu0YyvBUR7WjjHQ+83Fwpirl926t/twWwpENwSjpVb6LYSrahbWQK0 jtPmKK7C+dmx8DidsFnUeyt39+zEgBql3DBo0l0thaFHfwr+fUiVKbjuuebYqVO6jjZ7D0Kd9YT FBXjeMuM+og== X-Received: from dlbcf3.prod.google.com ([2002:a05:7022:4583:b0:123:12b9:c4e5]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:128c:b0:123:361e:e87c with SMTP id a92af1059eb24-124a0098f90mr1789109c88.11.1769539581994; Tue, 27 Jan 2026 10:46:21 -0800 (PST) Date: Tue, 27 Jan 2026 10:45:00 -0800 In-Reply-To: <20260127184506.3059493-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260127184506.3059493-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260127184506.3059493-30-irogers@google.com> Subject: [PATCH v11 29/35] perf jevents: Add dir breakdown metrics for Intel 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 , 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" Breakdown directory hit, misses and requests. The implementation uses the M2M and CHA PMUs present in server models broadwellde, broadwellx cascadelakex, emeraldrapids, icelakex, sapphirerapids and skylakex. Tested-by: Thomas Falcon Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 36 ++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index 983e5021f3d3..24ceb7f8719b 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -815,6 +815,41 @@ def IntelLdSt() -> Optional[MetricGroup]: ], description=3D"Breakdown of load/store instructions") =20 =20 +def UncoreDir() -> Optional[MetricGroup]: + try: + m2m_upd =3D Event("UNC_M2M_DIRECTORY_UPDATE.ANY") + m2m_hits =3D Event("UNC_M2M_DIRECTORY_HIT.DIRTY_I") + # Turn the umask into a ANY rather than DIRTY_I filter. + m2m_hits.name +=3D "/umask=3D0xFF,name=3DUNC_M2M_DIRECTORY_HIT.ANY= /" + m2m_miss =3D Event("UNC_M2M_DIRECTORY_MISS.DIRTY_I") + # Turn the umask into a ANY rather than DIRTY_I filter. + m2m_miss.name +=3D "/umask=3D0xFF,name=3DUNC_M2M_DIRECTORY_MISS.AN= Y/" + cha_upd =3D Event("UNC_CHA_DIR_UPDATE.HA") + # Turn the umask into a ANY rather than HA filter. + cha_upd.name +=3D "/umask=3D3,name=3DUNC_CHA_DIR_UPDATE.ANY/" + except: + return None + + m2m_total =3D m2m_hits + m2m_miss + upd =3D m2m_upd + cha_upd # in cache lines + upd_r =3D upd / interval_sec + look_r =3D m2m_total / interval_sec + + scale =3D 64 / 1_000_000 # Cache lines to MB + return MetricGroup("lpm_dir", [ + Metric("lpm_dir_lookup_rate", "", + d_ratio(m2m_total, interval_sec), "requests/s"), + Metric("lpm_dir_lookup_hits", "", + d_ratio(m2m_hits, m2m_total), "100%"), + Metric("lpm_dir_lookup_misses", "", + d_ratio(m2m_miss, m2m_total), "100%"), + Metric("lpm_dir_update_requests", "", + d_ratio(m2m_upd + cha_upd, interval_sec), "requests/s"), + Metric("lpm_dir_update_bw", "", + d_ratio(m2m_upd + cha_upd, interval_sec), f"{scale}MB/s"), + ]) + + def UncoreMem() -> Optional[MetricGroup]: try: loc_rds =3D Event("UNC_CHA_REQUESTS.READS_LOCAL", @@ -944,6 +979,7 @@ def main() -> None: IntelMlp(), IntelPorts(), IntelSwpf(), + UncoreDir(), UncoreMem(), UncoreMemBw(), ]) --=20 2.52.0.457.g6b5491de43-goog