From nobody Thu Dec 11 19:15:37 2025 Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) (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 CA7CF2E266E for ; Tue, 2 Dec 2025 17:54:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764698063; cv=none; b=Mewx4xfw+r62G3jYusdFRBSfV3FBmXxkBh20xOBzL1slnKUxEOvvh44+MUdRQ95w/by5NphqRrrCeKyT61e0vb5j5ae/jg9kB2k4nKFafcqYrk4socMAauzJ1fuL4hFpRYrQfcYf1yXjh9OGgr7oTofNc8kw181pdjBC+ix//5w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764698063; c=relaxed/simple; bh=HbqjuqmfTyXOvOBzE/ZBtIvkD3sFaHP5dLAWeufweuk=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=r6iim0k6e2E4ypO0j6WLTQQ4KMrh/sbU1juO6qwqNzYc386NzEH4gnhRfGnuwVfVUx+RahoGky5cG5UHvO6eyxKW4bP8uAXObEeRwRu5vNI71v3dlq5rykEXZPAiYAiBvInKCArl2jrmRQCSeIjwix22v4GQXXAAAuw+1T4bYZI= 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=kcnjlk1O; arc=none smtp.client-ip=209.85.214.201 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="kcnjlk1O" Received: by mail-pl1-f201.google.com with SMTP id d9443c01a7336-297dfae179bso119460565ad.1 for ; Tue, 02 Dec 2025 09:54:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764698061; x=1765302861; 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=LiDtubt1AphVgSFkzW+FmI1oqQxqLj5ewhOCQtRYDYQ=; b=kcnjlk1O0PtQSrSZhgyc5sw2qPVKV63fvP/Tz/Pe+otgs7XPkNbn9shy525b1X/MoF aqMn/QWGFExWXZ/CxDlNveOSxseY8uhJIEzO92NRNXRhDxInHsqmayzOqhJsNN21B8BL h62tO4cl9PibBcrmvrKnw/dowKJ2pzbISGqwzaLDYSVgUqtKYRQXOIU4Aku+WRqi5Jcr h15OU+8w53VzIXTDy/gjVG8Fk7MoSx9jA1hunoUlIHANNCgqX4EEk9YKSn7hB3QACS0h Utx6JMe2hdpBalBA27c30ZesvCYcQY7Li3D5ZKEQFONL1Uingjsxn82+gNH1w3TMxbuG qx0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764698061; x=1765302861; 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=LiDtubt1AphVgSFkzW+FmI1oqQxqLj5ewhOCQtRYDYQ=; b=LC9ZIfVRyQTNYvRs+YlQiXuonlMgegg3zZY55FWqQzeeRBZV4mNC72W1Ygx6Xl+kU6 OO9FsGXVcPGlUt2d31Iw7FJAajoGJfLQojIlDOHz7RvJ+RdfY1qWyb+99crTDdSa2WCf oqZ2agwAf8bJelb9/DNYLi/gYO0g621HZQV6aQmI+zpB2S4OKiSwIIlR/GqaoXlquUJv vCflKIi60OOcFGCuizBJwUZjFNZIaN8zpWcBIlkUX/SLWd7mkmdBzTiEx/6xmzGGzagG qM84aTs+z4NzgZYEWyUvjPu0+jY3goWkyxQCcLF/UFDNaQcGNBqa1D5ZUQHtrKCJkrII 90fg== X-Forwarded-Encrypted: i=1; AJvYcCXUiE9Q+NSjY/Ojf2PsssS669P5aPdu7pjjunM2FX6iqu6y4S5JNDhsi/0o4ipaq5ZsPAu5OA+bQ3StR7I=@vger.kernel.org X-Gm-Message-State: AOJu0YwjXS5qdCdmvnA8BlDIp7RcTyciAZwnY5GoQ2LbZUD17zwWw/Zs u/iStLNdB16M0BXT/Y5U730Iw4GGxkIsccwSGq1uBaBFiq1s7HnrHVrgiT4hiLx9+yFNgkVrUlD mVJf9kHGoug== X-Google-Smtp-Source: AGHT+IH5qHnWptUctlRlS9Et1AE/osOMz74PdqfxaJzodJz+anR5B8/WSihGvugo+rrwS7KOq9hdAaoSJyqw X-Received: from dlnn37.prod.google.com ([2002:a05:7022:61a5:b0:11d:cde5:d78e]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:2509:b0:11b:bf3f:5208 with SMTP id a92af1059eb24-11c9d708d55mr25940152c88.1.1764698061026; Tue, 02 Dec 2025 09:54:21 -0800 (PST) Date: Tue, 2 Dec 2025 09:50:34 -0800 In-Reply-To: <20251202175043.623597-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251202175043.623597-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.158.g65b55ccf14-goog Message-ID: <20251202175043.623597-40-irogers@google.com> Subject: [PATCH v9 39/48] perf jevents: Add mem_bw 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 , 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" 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 Tested-by: Thomas Falcon --- 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 dddeae35e4b4..f671d6e4fd67 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -815,6 +815,67 @@ 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(= __file__))}" + f"/arch/x86/{args.model}/uncore-memory= .json")) + 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("lpm_mem_bw", [ + MetricGroup("lpm_mem_bw_ddr", [ + Metric("lpm_mem_bw_ddr_read", "DDR memory read bandwidth", + d_ratio(ddr_rds, interval_sec), f"{scale}MB/s"), + Metric("lpm_mem_bw_ddr_write", "DDR memory write bandwidth", + d_ratio(ddr_wrs, interval_sec), f"{scale}MB/s"), + Metric("lpm_mem_bw_ddr_total", "DDR memory write bandwidth", + d_ratio(ddr_total, interval_sec), f"{scale}MB/s"), + ], description=3D"DDR Memory Bandwidth"), + MetricGroup("lpm_mem_bw_pmm", [ + Metric("lpm_mem_bw_pmm_read", "PMM memory read bandwidth", + d_ratio(pmm_rds, interval_sec), f"{scale}MB/s"), + Metric("lpm_mem_bw_pmm_write", "PMM memory write bandwidth", + d_ratio(pmm_wrs, interval_sec), f"{scale}MB/s"), + Metric("lpm_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") + + def main() -> None: global _args =20 @@ -853,6 +914,7 @@ def main() -> None: IntelMlp(), IntelPorts(), IntelSwpf(), + UncoreMemBw(), ]) =20 if _args.metricgroups: --=20 2.52.0.158.g65b55ccf14-goog