From nobody Mon Feb 9 00:31:16 2026 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 6CFE345018 for ; Fri, 1 Mar 2024 18:56:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709319412; cv=none; b=Zu55y0KLuoUBFCpDxYfivm7Bt2kviAaReikLMJ+6cwUOqfmtrRkqDBIfCD4XE7Ug6eCli/5cQ+0eaGAIgI9BujvUp4CyWuY2dzv7Rfypu5I91cHaWOHC1uMLgCi/JAF2QjgQIRiT2QK0cTpcCuCDkrj4rQ2pCuIeK0XZg6pqW6w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709319412; c=relaxed/simple; bh=panIrCvcM8hwmTL6w73OOIwaBmO4XEVl+dEJoBh+wK8=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=jT5MeZULZhb/jI2/bvzX3uSj2HB+KaO/qZ9gHT4poHvPKERR0UjuN2tBFiIEqhParhVrGNL3A/xmQPRgf7xRbsssjc+vk/ac3LNPu0VFMXLJM1sNgmCBeyShFg1FvRd9j5HcII6tx1wtak8ZtaGMRW138gn4Ow2ksNNeGyQSxsQ= 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=05HGQoF1; arc=none smtp.client-ip=209.85.128.202 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="05HGQoF1" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-608ac8c5781so43335857b3.3 for ; Fri, 01 Mar 2024 10:56:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709319410; x=1709924210; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=K9VN6M4iHhNGfXDgUsA95lPgDC+51/4VBbMVT4/EKng=; b=05HGQoF1lQ+Rph0uRkJXdPfSSIX43pdvwKamXL16jErTuwF0wTiu5xSjQV1VLdiDBG u/W2kw1B3MoLa7XDrKC1dVQoYxFcgQhURbqVcn40wBzDuBV6eeGqndPxmaRA4Mfkgx6J yoCiWp+DlM5SEYhpjAD7lUyUNrY3ioliFtGhWs0Ka6PCI4Pji6OLeaXo+9vCJxEADgoc vPF0ybl3XqmLUBtOJaf/rneqVl4xTNEb3eEHYIjHfIGfZULfuMdq7iwYCh27F7Ne5rt4 1/2Z+mZ+8JgMww/1zhZzP5OLa+y007lTDu9XAHfijFMslBEt3L8Iegr+16/pCbzIDSgF MJ7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709319410; x=1709924210; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=K9VN6M4iHhNGfXDgUsA95lPgDC+51/4VBbMVT4/EKng=; b=a8tHpfpBxr/dVxtx1Up1/2zCUz+yPffUw1s1fIT5DqD1ShtqH5dIK/DidHa0fdDJbN DVT6ESjOu5aHjJ84/4iB4uv0Q7X65HA5vDa3i2blRQy+hcL4VLFITqUN63UoQUjmTHVP UaWqfQ+CTQrftIVvxfB+/DgKvVpANcbBWz9i0yCXksC2Xcckc5V/s6JGjoTRo0SbFRCZ eEEpU8VaKtsNSH3lRRlUOjj5Vj2xPHRv2VH1AuiKmkx44tpx5gDjmWnkcx5/Xr7YV3mE jGMApPr/kY+MD/X3UkqGKc5QiNb81jfepWP6w4CV891n4jjf3h9a9LyNR82ZqdlO7YTY 6M/g== X-Forwarded-Encrypted: i=1; AJvYcCVHI7z+mqJ+n+6PDf0tJWnRm5UUBwHBxfKSUvTpOW/fDb3IQR10Zt+ijUaQTRP2YhPMgqs9OdDIZh+CepAq/Rq95NfahUCA6p0O4rlj X-Gm-Message-State: AOJu0YznDy7R7MsF/4t/qTchwwOAw6+zZuUNgulIu4MnxsYZGxSMXwDL Bj6JQk2AhZlvDD6AE/MbIMIIYR3tvLrJI/Ldfy+vfLama2T9sy2bXE+bYfxT4iIQCV5xYt0eRFr 07OO7Fw== X-Google-Smtp-Source: AGHT+IHukrvXXf9dKyNrHu0Wr/egMKoGJpe2Mj9fmA3/yh9TWJLZGgHyZc7wGu29UBH6pQdCHemj+zr16pX3 X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:af4b:7fc1:b7be:fcb7]) (user=irogers job=sendgmr) by 2002:a05:690c:85:b0:609:3cdf:c737 with SMTP id be5-20020a05690c008500b006093cdfc737mr528497ywb.10.1709319410636; Fri, 01 Mar 2024 10:56:50 -0800 (PST) Date: Fri, 1 Mar 2024 10:55:54 -0800 In-Reply-To: <20240301185559.2661241-1-irogers@google.com> Message-Id: <20240301185559.2661241-16-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240301185559.2661241-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v2 15/20] perf jevents: Add mem_bw metric for Intel From: Ian Rogers To: Perry Taylor , Samantha Alt , Caleb Biggers , Weilin Wang , Edward Baker , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , John Garry , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Stephane Eranian Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Break down memory bandwidth using uncore counters. For many models this matches the memory_bandwidth_* metrics, but these metrics aren't made available on all models. Add support for free running counters. Query the event json when determining which what events/counters are available. Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 62 ++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index 2cd30c557a59..a5d68b7deab3 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -784,6 +784,67 @@ def IntelLdSt() -> Optional[MetricGroup]: ], description =3D "Breakdown of load/store instructions") =20 =20 +def UncoreMemBw() -> Optional[MetricGroup]: + mem_events =3D [] + try: + mem_events =3D json.load(open(f"{os.path.dirname(os.path.realpath(__fi= le__))}" + f"/arch/x86/{args.model}/uncore-memory.jso= n")) + except: + pass + + ddr_rds =3D 0 + ddr_wrs =3D 0 + ddr_total =3D 0 + for x in mem_events: + if "EventName" in x: + name =3D x["EventName"] + if re.search("^UNC_MC[0-9]+_RDCAS_COUNT_FREERUN", name): + ddr_rds +=3D Event(name) + elif re.search("^UNC_MC[0-9]+_WRCAS_COUNT_FREERUN", name): + ddr_wrs +=3D Event(name) + #elif re.search("^UNC_MC[0-9]+_TOTAL_REQCOUNT_FREERUN", name): + # ddr_total +=3D Event(name) + + if ddr_rds =3D=3D 0: + try: + ddr_rds =3D Event("UNC_M_CAS_COUNT.RD") + ddr_wrs =3D Event("UNC_M_CAS_COUNT.WR") + except: + return None + + ddr_total =3D ddr_rds + ddr_wrs + + pmm_rds =3D 0 + pmm_wrs =3D 0 + try: + pmm_rds =3D Event("UNC_M_PMM_RPQ_INSERTS") + pmm_wrs =3D Event("UNC_M_PMM_WPQ_INSERTS") + except: + pass + + pmm_total =3D pmm_rds + pmm_wrs + + scale =3D 64 / 1_000_000 + return MetricGroup("mem_bw", [ + MetricGroup("mem_bw_ddr", [ + Metric("mem_bw_ddr_read", "DDR memory read bandwidth", + d_ratio(ddr_rds, interval_sec), f"{scale}MB/s"), + Metric("mem_bw_ddr_write", "DDR memory write bandwidth", + d_ratio(ddr_wrs, interval_sec), f"{scale}MB/s"), + Metric("mem_bw_ddr_total", "DDR memory write bandwidth", + d_ratio(ddr_total, interval_sec), f"{scale}MB/s"), + ], description =3D "DDR Memory Bandwidth"), + MetricGroup("mem_bw_pmm", [ + Metric("mem_bw_pmm_read", "PMM memory read bandwidth", + d_ratio(pmm_rds, interval_sec), f"{scale}MB/s"), + Metric("mem_bw_pmm_write", "PMM memory write bandwidth", + d_ratio(pmm_wrs, interval_sec), f"{scale}MB/s"), + Metric("mem_bw_pmm_total", "PMM memory write bandwidth", + d_ratio(pmm_total, interval_sec), f"{scale}MB/s"), + ], description =3D "PMM Memory Bandwidth") if pmm_rds !=3D 0 else No= ne, + ], description =3D "Memory Bandwidth") + + all_metrics =3D MetricGroup("", [ Idle(), Rapl(), @@ -798,6 +859,7 @@ all_metrics =3D MetricGroup("", [ IntelMlp(), IntelPorts(), IntelSwpf(), + UncoreMemBw(), ]) =20 if args.metricgroups: --=20 2.44.0.278.ge034bb2e1d-goog