From nobody Sun Feb 8 19:55:02 2026 Received: from mail-dy1-f202.google.com (mail-dy1-f202.google.com [74.125.82.202]) (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 E68B533436A for ; Thu, 8 Jan 2026 19:12:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899544; cv=none; b=ZBDUTa76OZfiZP2/IFwTuK0XA3iZoP1FqsxcKCA0j9KI1Ncs8ROj1iaM5qQ6s1+W4Kk946KVnJVNGFSOq33Jy9AviQ479Wwa/2/HT0JM5goS3HnRFiKaD5yb3f0ldHgI+NDYI43Hdt8RlPgs5l5Kajd1OFJWx07IhCHWExlTkAA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767899544; c=relaxed/simple; bh=Sr+0utK0tNOs2nzfxd6UaoFEVfN9d6C1I9sdXtbKpqg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=cbQ/5btlPlEwjP+8Ya+FTXwf9FAWi4eKbYfYSgJAlnxFqfR4b04RzDOFBrW+cDE7GrP3byRT26y3jt9pGj6e136F4y8oBrbU9sWMhwd51IyXi7GZHE6CKAdDA+kfaeqq+ZDLiEsoaP3EztEA9G1UA/I8fQWXkR4RlAfL3rFTDiY= 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=0/lYTG5o; arc=none smtp.client-ip=74.125.82.202 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="0/lYTG5o" Received: by mail-dy1-f202.google.com with SMTP id 5a478bee46e88-2ae6ef97ac5so9537232eec.1 for ; Thu, 08 Jan 2026 11:12:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1767899541; x=1768504341; 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=0/lYTG5oqa3H5V4jRhmYh4aehuFHMJyg3iRXuZiO783mafOTswnlQTGGTMYrCibdoV yBrkk2Um+5gBxiZtkJ+MchchCN7cTaZJj8Wa8kBCnippb2rnNavEtQvohhWS1n2VeGGs rKNpUCei0OUjEcZDUKTRaklnIU5x3KHLXKNiUucwgdZgwPRny7A46TIb6PbIDSB6RpI5 6dqfK0Vfl480Wt0LnI4q9JoCQcZtf23jE9AGYoVUC+7w337p1ip2tUxQNy99K8vSeS8X D3ZpELI7gsp5m9ZPDRCXcJdyOQU+W0hrZbyAgys8d4xJNpdBDplPRqAMwcMnqtnkPoNF 4PXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767899541; x=1768504341; 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=UsCdgDa3ANy0GeSbVsxsvogGmUSxfegkQoIMYq9SyidOgq/3VBPRytwOwzW3e3QZZA P0mWabv8V+ZAOZF39luo0wDj1TatbSZIppNyhHTiE77xB/LY+Ex6qwEqdWPzxwoZv8gE QZtOTn3chkoKETIQwrx95baoPzHobsL6D67S1/b2G402pUGdMsHV2gE0HYdQoi+Jx48Y +yKkKdFdRYs1lycVmGySTEAn8S0MMukjYZgP2zTgpzhNy53zQCFHOBxV3bg8/SwEAGRO /mLZ4ogGfY9eBKadwGqpN26FhFE1vm4RE6g9BT9rZd7sx75oChWygJmXMfzwL4RtSMIn fBaQ== X-Forwarded-Encrypted: i=1; AJvYcCWUn1YwaKlof9/iU02wehPUWPV20Nx8xntCnrnm6s5b+/IXmkalArPV604D/V1XIG5FVwFQ3IV+dFLXPdM=@vger.kernel.org X-Gm-Message-State: AOJu0Yw7d8mbG1NHz1uoQbZHu7uOHSbiznhnti6oxUu6VFeCGm0SVXDI mmukbD2hjRKP9W2FxfxLOWVv3KLS0GinKLMp0ueGAJGcyHnV7bMRUfoFGE67r7yfi6xOBgT1DkM iVbiSVBDp5w== X-Google-Smtp-Source: AGHT+IHADtKBzmaJfGZE2ZC8SLeEnddqoBpOOdUcgbZLPOu11ukMCQntJgnojrBY5MD75XcpS2lbM7IfSVI+ X-Received: from dlbtz3.prod.google.com ([2002:a05:7022:eac3:b0:119:9f33:34a6]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:701b:2207:b0:11b:9386:a3c1 with SMTP id a92af1059eb24-121f8b750d4mr4494873c88.44.1767899540778; Thu, 08 Jan 2026 11:12:20 -0800 (PST) Date: Thu, 8 Jan 2026 11:10:59 -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: <20260108191105.695131-30-irogers@google.com> Subject: [PATCH v10 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 , 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" 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