From nobody Mon Feb 9 05:59:45 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 9B7D91759D for ; Thu, 14 Mar 2024 06:00:09 +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=1710396012; cv=none; b=hJ0gMl1kSQT8+nW+NBhjOJLz0mUM8KhzgwpcaG2400WQ6WxsPtJqnwY+tt5uC7SNqjFR8xeNoMvLtHoN3DDjUeZXKFMByslnzJGTVFo+lRYIlsh1hVzN0rD2IFX8MHir/nNuOaUMHxE91oOlvn/g89x7G5AmkXDOWuFYLBPVWPk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710396012; c=relaxed/simple; bh=9uJw1O918oN2FYmURJnSNa9KpCLd9v9rjdrnFyM6JbQ=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=Bg127F6kfo7naNbe+/u0s/ZrWKGKg14rg2bDdB2HJyC+H2vCiRMbJMOwDtX8WU0aGFj9f7rvjcISY6f3wKIfFJgUEee32FXkdWrHmVgbXFCzuHdw1lUSniKvjHvvTCK1ioKU+B1aa3NjpEtQwItE4ZFuCBNNfSzlW+11Xrcol4g= 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=xvzDl1zA; 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="xvzDl1zA" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-60a2b82039bso12711187b3.1 for ; Wed, 13 Mar 2024 23:00:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1710396008; x=1711000808; 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=UFiXNnmb/ZEVra2BYkk6K4dsDX+iGAa4EIuUf6Naynw=; b=xvzDl1zAnPtrzCvpyOQeQ81wYM0OvPZ5Fy71crfJQS/Q1zGIfq1fuq/0vilF3UUIEU y0b6EaFzv7iPr8WJ6ByFntBx3JFLeJE1U7l2bwgq7Zn91hZsfBXOerG8E74XI9Qug+Hc sqwXrZ+lp6aohPM7Wd3wdQ77idp1G3xHf+g8oX9za+56Uq4CTYFk0sCuONPjBIsVMx/y x6/v6q/00iqWurkZXWhJQ86Ev/3poRCtY3iy6kudTN22hdF9P7Dh4UJzWpE3ghl//bNh Xo3VJVxN9sq0N8dAW4Pho+WNMhO7Lyj0BH/RWXGzJeM4+mTFaU6CM/62orSRR7daXn2g DVMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710396008; x=1711000808; 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=UFiXNnmb/ZEVra2BYkk6K4dsDX+iGAa4EIuUf6Naynw=; b=aKjFl/wEEZ/+StInTdqaHt3LxdJXTIaC8/fq1Q3nfGTLWqBrg0KGwA5a9mz2Q9ggCN 1bJJZQXZuzDtV9oVi2fB1soqTtohyg3yc2FjmyLYBXSqL/sxhE5PapTZdZjfKLfS0u94 y/cNO5YqQKtyrvOHM7FQBHRqdfq2czU7wKs023VyHxi4TmslTQP6mJShbuMFfn6jZzGv /oCBkZxhLHArIha9CyvfnWxRwHL2DFP5ckyvfeFihAAY7DYIcx5fXa+ksoOgEwA/gquZ iXkgH5dxI/4RxsFNh6sEdrOfir1L6BAI8iKBdTV4q1mo5OcZwmhtcghA4xPGgFujElYp kEJg== X-Forwarded-Encrypted: i=1; AJvYcCWPZAlBH1aV0XDQYS9BGAFH+YiJySyJfMiJMYpKi/75aBXIEFJFI8V6gZsB2FT9OUzKkLZvDHrJOuBIScj1RGjfq1Orm4vhAzuMiFH+ X-Gm-Message-State: AOJu0Yy4jppZTkMW5DvXmI4hpTESJApN9xbVqN6lu/ZLHhVMNUcQRg4T CTuGt/thG7jp/XOZPT76uz0F10cuIRVPgw/CHdMp1ljYwJk88DtpJFRsp57qRU3WtLwuktG9pr+ TMXN/Rw== X-Google-Smtp-Source: AGHT+IG6D/9cf2FaWOjiiIaSBSmoU23i8ct9mqVP2RbqJuRzciG2uPuROEkE4L6iloxBiIFlCCfNNNw4oDCo X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:449f:3bde:a4cd:806a]) (user=irogers job=sendgmr) by 2002:a0d:d54e:0:b0:60a:2307:e3b with SMTP id x75-20020a0dd54e000000b0060a23070e3bmr131957ywd.3.1710396008638; Wed, 13 Mar 2024 23:00:08 -0700 (PDT) Date: Wed, 13 Mar 2024 22:59:14 -0700 In-Reply-To: <20240314055919.1979781-1-irogers@google.com> Message-Id: <20240314055919.1979781-16-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240314055919.1979781-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Subject: [PATCH v3 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 6a864c0b863a..c7f536d3d4ed 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -777,6 +777,67 @@ 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") + + def main() -> None: global _args =20 @@ -813,6 +874,7 @@ def main() -> None: IntelMlp(), IntelPorts(), IntelSwpf(), + UncoreMemBw(), ]) =20 =20 --=20 2.44.0.278.ge034bb2e1d-goog