From nobody Thu Sep 18 02:24:20 2025 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 0022A257AC7 for ; Fri, 29 Aug 2025 04:11:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756440719; cv=none; b=swH1imke8uiBRndwSk06TVN2AcuLtIz2rIfBP/7AnV6NL7DW6/FWAF+IZtrnxhyf82fCHQpEdnhqDE7ASmLAEItbKtFNI6IqKFOEpmWhO1PVCLS/RlTh0P899iWHsXmWbHO3fILlQKz0S2Mn2v399+wvjCwkFx9261HewV5/Dlc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756440719; c=relaxed/simple; bh=RAqBTlsz7iTfkuh3j5uys67bv7j8iaCJTuIX6mNvt/g=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=Mimdein/TFJnSPhj6N8MD4mToutFk4W7Qrxt8hvJd+rO01Z+m+qVHsNVzV+JV6cv5qmS0LRcqP4xZYEAo205qOrNwe9n8dRTXmcW4zA+kcM8dZdtCX244TWkrzARPaOYNz3Yd2Obvc+RYX6Wgq+vRSUuXjqB2GIwOPZ6cgWqYAk= 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=3golQaZf; arc=none smtp.client-ip=209.85.216.73 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="3golQaZf" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-327594fd627so1693637a91.3 for ; Thu, 28 Aug 2025 21:11:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1756440717; x=1757045517; 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=M37/BCr0G7wFUjtgs9TA1CPDOATBHqDUNx+A2nDCLDk=; b=3golQaZfn9ZLUWwFQj37b/zzBBQ53wbnAi1ENsoiTFAVaGd5x2cJ2TsINelaNsRpXw PPkjUyeTlKPQvG1vQxra4cuupWh4eBmBsw4BlxgmSHMuc2FJfYlNQqBaGGESRGfwycFB 5whEPhsp23VIhVCyQUF2Nho+XHKUfXet3VIHZvCQwSfs66pWYIkSLcNyZMzL5xsXpPkU zslmgnJ4o9ZomnFD3u1ndgmmkfUlCLM6E3PToqyGZDmZntm7OjZZYc/hTS9ZLTyMT0UZ siGvoNvJwMxNRkAj+5MDiF4rMjGmHhsnPA44lnaFblA0jQtST/m14X0o0Ty6DHNjrivU QdWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756440717; x=1757045517; 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=M37/BCr0G7wFUjtgs9TA1CPDOATBHqDUNx+A2nDCLDk=; b=WfpqznCSIgncKgE+QbelgEO57I6UIRmKkmDX/6ayaEnI0JF1AQZT02yTefEFWZ1NBm HWx/e4tJHPawUfyCJlkgORSeadb7taq/xHzMSQrhLO3dTnKK+fokwdTmtsE9mz+/8Byl EYQB3elFbQvaG2vDzN18TQz7enwMpfdLgiTDKsagkNB8hTiG+JE0m7d8YGoF01DdcV19 nj2s10ou70Fwl0+gDSfLLDJOYFg/rCd4rxSV71WtTvbk6iVHihlZtkozyZbMqFl6FWgO fCLEFKcssTTXXxqx7NBVBacmQFkSU3gY0Pzfih0AWFSpxZ4ERfdTNvsApGY1NFm9xUE1 NlYw== X-Forwarded-Encrypted: i=1; AJvYcCWKxd6s2INiZ+9XhSfmUMMeCxSBIoSY03kV6ffyFxF34Y6Wjb539trFNWcXRTFhRKIQI0QKVut0wgYJrE8=@vger.kernel.org X-Gm-Message-State: AOJu0Yyr6Y20fpBymKQd/mo8/kPdJ58u5s9NvO20fLdUYxYu9BEIhDQI 3j93P/8Ipiu2Zqq8GGikFeeHqpjFGTH3l/PCDguRzG7UNyAN9H+SYMRLakT17kJ1cynJloa8Vft hPRK6pApPQg== X-Google-Smtp-Source: AGHT+IFaF8U3qHBbGql+g0XBidJWc2JoLHuvwPhanDRiVWnkGTBDVCZ99T8uFipFHHukDL9yt7SvOBC9ZHNg X-Received: from pjbnc12.prod.google.com ([2002:a17:90b:37cc:b0:31f:2a78:943]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3ece:b0:327:c0b6:305b with SMTP id 98e67ed59e1d1-327c0b632b3mr4490721a91.36.1756440717275; Thu, 28 Aug 2025 21:11:57 -0700 (PDT) Date: Thu, 28 Aug 2025 21:10:56 -0700 In-Reply-To: <20250829041104.4186320-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250829041104.4186320-1-irogers@google.com> X-Mailer: git-send-email 2.51.0.318.gd7df087d1a-goog Message-ID: <20250829041104.4186320-16-irogers@google.com> Subject: [PATCH v5 15/22] perf jevents: Add Miss Level Parallelism (MLP) metric for Intel From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Xu Yang , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, John Garry , Jing Zhang , Sandipan Das , Benjamin Gray , Perry Taylor , Samantha Alt , Caleb Biggers , Weilin Wang , Edward Baker , Thomas Falcon Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Number of outstanding load misses per cycle. 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 f4d0676cdb77..262bfd539262 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -612,6 +612,20 @@ 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 misse= s 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.mode= l}/pipeline.json")) =20 @@ -819,6 +833,7 @@ def main() -> None: IntelIlp(), IntelL2(), IntelLdSt(), + IntelMlp(), IntelPorts(), IntelSwpf(), ]) --=20 2.51.0.318.gd7df087d1a-goog