From nobody Mon Feb 9 05:59:43 2026 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (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 A37713D982 for ; Thu, 14 Mar 2024 05:59:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710395998; cv=none; b=PKpDY/X+kPufTZXI4GrO/04C0jCpSwZ+4+ZX4C2JhDlR5glqjvvJ35OZ+YoKxwzW7yOdEuZf3h7180is643i2HixJGCSwmuJZrz+zXkprkfWyi+kPPXsxAQcTRP+9v7AFQpzrcN62lPGz5aB5zkYT/sN+mk9X/2A15LhSpXkpYw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710395998; c=relaxed/simple; bh=EtOcDq2NMAnbcBBlUMbyBdHDOVr9dglo32PTwlIWv3o=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=GpcbXqR7XKLprQ8vWChdwvaGcbL3kOZM7Lcp5+DVdULDfsrCNehpqaKIKCwitYYqqAjvE1zCu4PLmEYe3UpyZ5dtu/Sy7LHfsxZA/OwOeW4YQEAFt3hBtLDFhicAVTdeCm/uu0y6JzXa9VBnVpnrbsimMinwLhl4dDGZJ1erm8w= 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=wunVpgEW; arc=none smtp.client-ip=209.85.128.201 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="wunVpgEW" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-60a08eb0956so9977237b3.3 for ; Wed, 13 Mar 2024 22:59:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1710395996; x=1711000796; 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=3ab3oVKFyb7WmXtlReQGTt2ckvC2KNs0Fz6mOW8a1Ns=; b=wunVpgEWtzcYKh3uE8ej26ZQNU/NIovsPimVkkvvgd5Jz3rIT46th3eZh+KbIAxpeM ceS9phCvlKU50tF3Rfpk3JPUYLGyG46fTevhxAH1DLRUu3VWVvbJpQG8uo4GnjcBQoio xJ/vxBsCm0sjvD7af/GpDAitIjw4Au7NWuLhe206QujwlfnoGQVOA1Or4I4XvJK49qXc OIwZiUBS6WRADOeUh2eomHbgpti8BBPQDMXRGjUXHLxuLmfjaZgZW6qWCMTuzCSOxZGg cWEvR+lNMlvOMCbGytb2LDQ+9aUIHZmdGD8s6EfswB3X3AI/HcXTNdDbzGW7wkYmOk6u fnYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710395996; x=1711000796; 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=3ab3oVKFyb7WmXtlReQGTt2ckvC2KNs0Fz6mOW8a1Ns=; b=qDmKVB0xTBW18AgIFdePI+aRwglfNAU8xpsgvjm6fpKCtXtU78WCXm32RKcUjnxBV6 EL79fcAvtJpCdnL8FcwkZ6p7+mqb9Uw4CdncppHAOBJMsgb427KjKwIVgctT08RHpjcz mk8sG1h3Ol7JnIbaCCvEqGV3TUJwIIAlanDQvqU25LzktXdR8COOBW0x/wHrnVCWTwJW leqDJ+AX5HL2WdVWiGNBQ6yc+GflBEukJ31aHvgbPksVJ3jO1/XiV5rp99otXgjoA+cv I6HRWPA7EMmkv6Qs4l5q8eQHXnuCVY/0g3yEP9JBQU8x+1lPpSVOmNiF+2m0PXqcGV8R b2uw== X-Forwarded-Encrypted: i=1; AJvYcCVbepCnIOlcZhm6tme6TKNNKnxTiP2XW+F313leSge8yo3ZHLn7i0uglju+KhcgAmfHDpiRy9mtrBHpBzhcDVHACMB5KhaqUgqd4Z5N X-Gm-Message-State: AOJu0YxxrNY/i8/vnojuiCBeqfjbjiGGzZ1C89YdkBM7IajgYVmPoMMO CpDeb8WRY4JsWUt1XAFOJOZNIcdU5f2QrB4OO5zpeflAwq8VkmYpHaicSG882I7uGlkZiFbdl08 DzBKkBg== X-Google-Smtp-Source: AGHT+IHkvYJkQtyDL36LoaqZSsrHz4Bkvp45OCVN90/foiDSZQ23PNnkVZLA/DGJYTkB+Z1kG/gkiaT5M/YD X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:449f:3bde:a4cd:806a]) (user=irogers job=sendgmr) by 2002:a05:6902:240e:b0:dc2:5273:53f9 with SMTP id dr14-20020a056902240e00b00dc2527353f9mr34374ybb.1.1710395995841; Wed, 13 Mar 2024 22:59:55 -0700 (PDT) Date: Wed, 13 Mar 2024 22:59:08 -0700 In-Reply-To: <20240314055919.1979781-1-irogers@google.com> Message-Id: <20240314055919.1979781-10-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 09/20] perf jevents: Add L2 metrics 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" Give a breakdown of various L2 counters as metrics, including totals, reads, hardware prefetcher, RFO, code and evictions. Signed-off-by: Ian Rogers --- tools/perf/pmu-events/intel_metrics.py | 158 +++++++++++++++++++++++++ 1 file changed, 158 insertions(+) diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events= /intel_metrics.py index b181574c9486..9ef30e5d3e25 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -266,6 +266,163 @@ def IntelBr(): description=3D"breakdown of retired branch instructio= ns") =20 =20 +def IntelL2() -> Optional[MetricGroup]: + try: + DC_HIT =3D Event("L2_RQSTS.DEMAND_DATA_RD_HIT") + except: + return None + try: + DC_MISS =3D Event("L2_RQSTS.DEMAND_DATA_RD_MISS") + l2_dmnd_miss =3D DC_MISS + l2_dmnd_rd_all =3D DC_MISS + DC_HIT + except: + DC_ALL =3D Event("L2_RQSTS.ALL_DEMAND_DATA_RD") + l2_dmnd_miss =3D DC_ALL - DC_HIT + l2_dmnd_rd_all =3D DC_ALL + l2_dmnd_mrate =3D d_ratio(l2_dmnd_miss, interval_sec) + l2_dmnd_rrate =3D d_ratio(l2_dmnd_rd_all, interval_sec) + + DC_PFH =3D None + DC_PFM =3D None + l2_pf_all =3D None + l2_pf_mrate =3D None + l2_pf_rrate =3D None + try: + DC_PFH =3D Event("L2_RQSTS.PF_HIT") + DC_PFM =3D Event("L2_RQSTS.PF_MISS") + l2_pf_all =3D DC_PFH + DC_PFM + l2_pf_mrate =3D d_ratio(DC_PFM, interval_sec) + l2_pf_rrate =3D d_ratio(l2_pf_all, interval_sec) + except: + pass + + DC_RFOH =3D Event("L2_RQSTS.RFO_HIT") + DC_RFOM =3D Event("L2_RQSTS.RFO_MISS") + l2_rfo_all =3D DC_RFOH + DC_RFOM + l2_rfo_mrate =3D d_ratio(DC_RFOM, interval_sec) + l2_rfo_rrate =3D d_ratio(l2_rfo_all, interval_sec) + + DC_CH =3D Event("L2_RQSTS.CODE_RD_HIT") + DC_CM =3D Event("L2_RQSTS.CODE_RD_MISS") + DC_IN =3D Event("L2_LINES_IN.ALL") + DC_OUT_NS =3D None + DC_OUT_S =3D None + l2_lines_out =3D None + l2_out_rate =3D None + wbn =3D None + isd =3D None + try: + DC_OUT_NS =3D Event("L2_LINES_OUT.NON_SILENT", + "L2_LINES_OUT.DEMAND_DIRTY", + "L2_LINES_IN.S") + DC_OUT_S =3D Event("L2_LINES_OUT.SILENT", + "L2_LINES_OUT.DEMAND_CLEAN", + "L2_LINES_IN.I") + if DC_OUT_S.name =3D=3D "L2_LINES_OUT.SILENT" and ( + args.model.startswith("skylake") or + args.model =3D=3D "cascadelakex"): + DC_OUT_S.name =3D "L2_LINES_OUT.SILENT/any/" + # bring is back to per-CPU + l2_s =3D Select(DC_OUT_S / 2, Literal("#smt_on"), DC_OUT_S) + l2_ns =3D DC_OUT_NS + l2_lines_out =3D l2_s + l2_ns; + l2_out_rate =3D d_ratio(l2_lines_out, interval_sec); + nlr =3D max(l2_ns - DC_WB_U - DC_WB_D, 0) + wbn =3D d_ratio(nlr, interval_sec) + isd =3D d_ratio(l2_s, interval_sec) + except: + pass + DC_OUT_U =3D None + l2_pf_useless =3D None + l2_useless_rate =3D None + try: + DC_OUT_U =3D Event("L2_LINES_OUT.USELESS_HWPF") + l2_pf_useless =3D DC_OUT_U + l2_useless_rate =3D d_ratio(l2_pf_useless, interval_sec) + except: + pass + DC_WB_U =3D None + DC_WB_D =3D None + wbu =3D None + wbd =3D None + try: + DC_WB_U =3D Event("IDI_MISC.WB_UPGRADE") + DC_WB_D =3D Event("IDI_MISC.WB_DOWNGRADE") + wbu =3D d_ratio(DC_WB_U, interval_sec) + wbd =3D d_ratio(DC_WB_D, interval_sec) + except: + pass + + l2_lines_in =3D DC_IN + l2_code_all =3D DC_CH + DC_CM + l2_code_rate =3D d_ratio(l2_code_all, interval_sec) + l2_code_miss_rate =3D d_ratio(DC_CM, interval_sec) + l2_in_rate =3D d_ratio(l2_lines_in, interval_sec) + + return MetricGroup("l2", [ + MetricGroup("l2_totals", [ + Metric("l2_totals_in", "L2 cache total in per second", + l2_in_rate, "In/s"), + Metric("l2_totals_out", "L2 cache total out per second", + l2_out_rate, "Out/s") if l2_out_rate else None, + ]), + MetricGroup("l2_rd", [ + Metric("l2_rd_hits", "L2 cache data read hits", + d_ratio(DC_HIT, l2_dmnd_rd_all), "100%"), + Metric("l2_rd_hits", "L2 cache data read hits", + d_ratio(l2_dmnd_miss, l2_dmnd_rd_all), "100%"), + Metric("l2_rd_requests", "L2 cache data read requests per second", + l2_dmnd_rrate, "requests/s"), + Metric("l2_rd_misses", "L2 cache data read misses per second", + l2_dmnd_mrate, "misses/s"), + ]), + MetricGroup("l2_hwpf", [ + Metric("l2_hwpf_hits", "L2 cache hardware prefetcher hits", + d_ratio(DC_PFH, l2_pf_all), "100%"), + Metric("l2_hwpf_misses", "L2 cache hardware prefetcher misses", + d_ratio(DC_PFM, l2_pf_all), "100%"), + Metric("l2_hwpf_useless", "L2 cache hardware prefetcher useless pref= etches per second", + l2_useless_rate, "100%") if l2_useless_rate else None, + Metric("l2_hwpf_requests", "L2 cache hardware prefetcher requests pe= r second", + l2_pf_rrate, "100%"), + Metric("l2_hwpf_misses", "L2 cache hardware prefetcher misses per se= cond", + l2_pf_mrate, "100%"), + ]) if DC_PFH else None, + MetricGroup("l2_rfo", [ + Metric("l2_rfo_hits", "L2 cache request for ownership (RFO) hits", + d_ratio(DC_RFOH, l2_rfo_all), "100%"), + Metric("l2_rfo_misses", "L2 cache request for ownership (RFO) misses= ", + d_ratio(DC_RFOM, l2_rfo_all), "100%"), + Metric("l2_rfo_requests", "L2 cache request for ownership (RFO) requ= ests per second", + l2_rfo_rrate, "requests/s"), + Metric("l2_rfo_misses", "L2 cache request for ownership (RFO) misses= per second", + l2_rfo_mrate, "misses/s"), + ]), + MetricGroup("l2_code", [ + Metric("l2_code_hits", "L2 cache code hits", + d_ratio(DC_CH, l2_code_all), "100%"), + Metric("l2_code_misses", "L2 cache code misses", + d_ratio(DC_CM, l2_code_all), "100%"), + Metric("l2_code_requests", "L2 cache code requests per second", + l2_code_rate, "requests/s"), + Metric("l2_code_misses", "L2 cache code misses per second", + l2_code_miss_rate, "misses/s"), + ]), + MetricGroup("l2_evict", [ + MetricGroup("l2_evict_mef_lines", [ + Metric("l2_evict_mef_lines_l3_hot_lru", "L2 evictions M/E/F lines = L3 hot LRU per second", + wbu, "HotLRU/s") if wbu else None, + Metric("l2_evict_mef_lines_l3_norm_lru", "L2 evictions M/E/F lines= L3 normal LRU per second", + wbn, "NormLRU/s") if wbn else None, + Metric("l2_evict_mef_lines_dropped", "L2 evictions M/E/F lines dro= pped per second", + wbd, "dropped/s") if wbd else None, + Metric("l2_evict_is_lines_dropped", "L2 evictions I/S lines droppe= d per second", + isd, "dropped/s") if isd else None, + ]), + ]), + ], description =3D "L2 data cache analysis") + + def IntelPorts() -> Optional[MetricGroup]: pipeline_events =3D json.load(open(f"{_args.events_path}/x86/{_args.mode= l}/pipeline.json")) =20 @@ -379,6 +536,7 @@ def main() -> None: Smi(), Tsx(), IntelBr(), + IntelL2(), IntelPorts(), IntelSwpf(), ]) --=20 2.44.0.278.ge034bb2e1d-goog