From nobody Mon Feb 9 16:51:59 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 641D6346AC3 for ; Tue, 27 Jan 2026 18:46:17 +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=1769539582; cv=none; b=Dr0NLTMOevRnGYQ8QncnURZ7d64aiVLEsX8eJafv8iuvH4n6MAABMPnVIEfN5VbaGUhqKUbQWixk2tl/U8Z4n2wB9qUly31cOKiheunxulb7cJBGRYX3zEUPXIosdUe8Uz7K0iozGTO7eOFotaanapFPNPP6KnxUu97rL65g+Xs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769539582; c=relaxed/simple; bh=Ox8xoIEvHlXmb3ZnV7uUMcH4VYIJguTr3dOQXPYocWo=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=hngxRcPhnWsNA0PYpUSV5vmyFFJBzLJozRGBSHHu25RwTwWfIJZnxDs0J6as+HSbAo//XzFSJkhj5R/0oG9jvzs7p0SdmfYcTUhdA8BVH82FH0wmmBTEp0SlpIvms8rkzU8t/2kor34NIR72UcRwJ0dCmsx/Ds8g9CQVvT/GyDs= 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=yla9DBmf; 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="yla9DBmf" Received: by mail-dl1-f73.google.com with SMTP id a92af1059eb24-124a2d3d1b7so936488c88.0 for ; Tue, 27 Jan 2026 10:46:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1769539576; x=1770144376; 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=ZEKSewz96VX4s1GwXYzsYujeSp/AMjDx+PpNSoy8VmI=; b=yla9DBmfwY9RowwoKhTDXHQ46IJQOtKstAe94wIDZWg5EWSkp0dkGq8r+ZgM6sWk9V hv7RGQ0/t1BACq4sCTjmk39+q8XkAuwjzLR9Od46HLlct8oUsAQ8g4D0KWlmTRb7Xlst lfnaqTFVUyTwpZWB2uKJI48DSpsSULm96dMc+V7ky7F4qOHv4dtkwRPLkyv+/Kz3bRNa 2imri5PrJ+rS/7UUAKV24JHDJbk90iCpAm4trbxvuG2yXTY4a4LqQoRGV91gXq1MkX3t CYY5rGldrj/Y4o2s7d0FukjiC9eNLtAnaVI7ueu+ieEbog/Ul+NUduyuQQJyRWgv2nqd Fbrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769539576; x=1770144376; 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=ZEKSewz96VX4s1GwXYzsYujeSp/AMjDx+PpNSoy8VmI=; b=R6xUa1q4qmtbiOOSLu+1yAgAluL98QaWq/tt65vKKZHY2dqa9TjAWMSPv00PYag57E chbVzN2pFYsgFrPsDzMg/hZyRuDZMJjQMDbZE93MppzsKu+3inz1A+KCV/ThALFvZRFb K9ZHRHM4u3n99YbRiBINl9VqlbRi1YnVWOO+gZ3fRWMcvB3fnTjsfCz8v7DURLPFkcw5 iV1FvEdLuAGuPgwTehN5z90ED4t2PJedD21kXDzUQrx4J5Kxi9vZHNEnsvgtitamBPVx CoasuQH9e3t7b1Faj/wLuVYqNL8maBP9bz1rvbpWAYPFpDcRoX+hsmEaILoAs68I42/Q OqeA== X-Forwarded-Encrypted: i=1; AJvYcCWR9LmtfcCvN1jntIpkQw/AufCpcIjd8iH2IPvlwOxixvmirfFAOhwJ5zga3/tECM3ffdeKZwPimYOd0LI=@vger.kernel.org X-Gm-Message-State: AOJu0YwH4Qelr5jx40DePyvjF9eQmmbQfgraw7ZkJqQiI74nGs4wxBZ2 lVTlYZl5zR6vmF0GMpbxjW6hHYGMYIz1jacw+5YIOhlXLIxIuSJw1gLjeBfOFVQLoW14b/LCm8z Q/FS3MfnxgQ== X-Received: from dlg19.prod.google.com ([2002:a05:7022:793:b0:11f:3f33:f0a5]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:eb56:10b0:11b:fe75:d03 with SMTP id a92af1059eb24-124a005f2f6mr1144597c88.8.1769539576417; Tue, 27 Jan 2026 10:46:16 -0800 (PST) Date: Tue, 27 Jan 2026 10:44:57 -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: <20260127184506.3059493-27-irogers@google.com> Subject: [PATCH v11 26/35] perf jevents: Add Miss Level Parallelism (MLP) metric 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" Number of outstanding load misses per cycle. Tested-by: Thomas Falcon Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index 77b8e10194db..dddeae35e4b4 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -624,6 +624,20 @@ def IntelL2() -> Optional[MetricGroup]: ], description=3D"L2 data cache analysis") =20 =20 +def IntelMlp() -> Optional[Metric]: + try: + l1d =3D Event("L1D_PEND_MISS.PENDING") + l1dc =3D Event("L1D_PEND_MISS.PENDING_CYCLES") + except: + return None + + l1dc =3D Select(l1dc / 2, Literal("#smt_on"), l1dc) + ml =3D d_ratio(l1d, l1dc) + return Metric("lpm_mlp", + "Miss level parallelism - number of outstanding load mis= ses per cycle (higher is better)", + ml, "load_miss_pending/cycle") + + def IntelPorts() -> Optional[MetricGroup]: pipeline_events =3D json.load( open(f"{_args.events_path}/x86/{_args.model}/pipeline.json")) @@ -836,6 +850,7 @@ def main() -> None: IntelIlp(), IntelL2(), IntelLdSt(), + IntelMlp(), IntelPorts(), IntelSwpf(), ]) --=20 2.52.0.457.g6b5491de43-goog