Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0487C636CC for ; Sun, 19 Feb 2023 09:34:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229997AbjBSJe3 (ORCPT ); Sun, 19 Feb 2023 04:34:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229963AbjBSJeX (ORCPT ); Sun, 19 Feb 2023 04:34:23 -0500 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5227012599 for ; Sun, 19 Feb 2023 01:33:10 -0800 (PST) Received: by mail-yb1-xb4a.google.com with SMTP id 5-20020a250105000000b009802c10698cso866900ybb.22 for ; Sun, 19 Feb 2023 01:33:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=content-transfer-encoding:cc:to:from:subject:references :mime-version:message-id:in-reply-to:date:from:to:cc:subject:date :message-id:reply-to; bh=+hc9b9b/BO/VXC2/NW+XDZ+ErI1SMduZPX3EY93EMfk=; b=kC1sVcdXsB0uUQ1w+SkmrhM8B96rLLbj15fdHOc3sch9t/qU63JwZZ0xgD+MyUjX6g BHbuLumrVLMgR6q2CrqYl/GnJ+9PwkOfkhHz5aKbsx2UZmwo/QlxBGTmP6TzcmMeAxXW MCR0JOjbsu5D3j3qdtPmzW0UKf/ha+WqUihiNA019ww5tnxT/yBm6wlrQFsfZ1kBu0rb w3d/iJ6+x6kB/ATkJle3cMaRU2/ibHAGo/vlwjIzsNSACYRTXu5w55jU/m7D9MOVi5Iv YOOuzdPcEc4PD2bjlYYLXLKVNFehxBd2oOjZMaT2D0EHvN1IegU/faMPLAERWJSuWIAC UwvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc: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=+hc9b9b/BO/VXC2/NW+XDZ+ErI1SMduZPX3EY93EMfk=; b=k849Hs2AD9J+qBPGVtQJs4klsaz1QmsaAZWqxvafgrAqcvH4OMDQGg0Ah7XWKp+tnd V4Y38+7EMrhxu2VUmvSuiTETv05X6fQ6DhN1PA4UPTuBnsQ+CSk18pla+4/UfOkHxnWe LOADfTlO/hRerOufQQ2NbNtNN2a7dtUA4AMaWLSemny0mG5x+zdyQLxN7FlJsIgSwyZN 7QeLqv1aUd0TT0WW/AYJs0/NDumH3kW9JPKfdA8F934HwsiigULa/OfZF+s39hbhA3h/ 4/hdLZvgjy95Be8XAPaLDTtKD7Ts2QGZXYTJZF5PzyxHMEecdElmT8/O6evv09/a556j J4NQ== X-Gm-Message-State: AO0yUKWe4MVnRIss8ld+K7J7gFRozAYyutZeoN8XvpImwF1liHygPL0q 4BVIo8OZuWkwJtB7TZLhT7OtGmaHjSD1 X-Google-Smtp-Source: AK7set9+iX9eO0jqzh0h13x8mqoWXCOaFw2qSG7+Tdf+nToRoaALlfx+vplNJfPkw29ouLlFjVzIgALS73Hw X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:cde9:3fbc:e1f1:6e3b]) (user=irogers job=sendgmr) by 2002:a05:6902:4e1:b0:855:fd7e:b84e with SMTP id w1-20020a05690204e100b00855fd7eb84emr3360ybs.10.1676799147190; Sun, 19 Feb 2023 01:32:27 -0800 (PST) Date: Sun, 19 Feb 2023 01:28:22 -0800 In-Reply-To: <20230219092848.639226-1-irogers@google.com> Message-Id: <20230219092848.639226-26-irogers@google.com> Mime-Version: 1.0 References: <20230219092848.639226-1-irogers@google.com> X-Mailer: git-send-email 2.39.2.637.g21b0678d19-goog Subject: [PATCH v1 25/51] perf vendor events intel: Refresh sandybridge events From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Maxime Coquelin , Alexandre Torgue , Zhengjun Xing , Sandipan Das , James Clark , Kajol Jain , John Garry , Kan Liang , Adrian Hunter , Andrii Nakryiko , Eduard Zingerman , Suzuki Poulouse , Leo Yan , Florian Fischer , Ravi Bangoria , Jing Zhang , Sean Christopherson , Athira Rajeev , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Perry Taylor , Caleb Biggers Cc: Stephane Eranian , Ian Rogers Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Update the sandybridge events from 17 to 18. Generation was done using https://github.com/intel/perfmon. Notable changes are improved event descriptions, TMA metrics are updated to version 4.5, TMA info metrics are renamed from their node name to be lower case and prefixed by tma_info_, MetricThreshold expressions are added, and the smi_cost metric group is added replicating existing hard coded metrics in stat-shadow. Signed-off-by: Ian Rogers --- tools/perf/pmu-events/arch/x86/mapfile.csv | 2 +- .../arch/x86/sandybridge/cache.json | 8 +- .../arch/x86/sandybridge/floating-point.json | 2 +- .../arch/x86/sandybridge/frontend.json | 12 +- .../arch/x86/sandybridge/pipeline.json | 2 +- .../arch/x86/sandybridge/snb-metrics.json | 601 ++++++++++-------- 6 files changed, 344 insertions(+), 283 deletions(-) diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-ev= ents/arch/x86/mapfile.csv index 41bd13baa265..02715cbe4fd8 100644 --- a/tools/perf/pmu-events/arch/x86/mapfile.csv +++ b/tools/perf/pmu-events/arch/x86/mapfile.csv @@ -21,7 +21,7 @@ GenuineIntel-6-(57|85),v10,knightslanding,core GenuineIntel-6-A[AC],v1.00,meteorlake,core GenuineIntel-6-1[AEF],v3,nehalemep,core GenuineIntel-6-2E,v3,nehalemex,core -GenuineIntel-6-2A,v17,sandybridge,core +GenuineIntel-6-2A,v18,sandybridge,core GenuineIntel-6-(8F|CF),v1.09,sapphirerapids,core GenuineIntel-6-(37|4A|4C|4D|5A),v14,silvermont,core GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v53,skylake,core diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/cache.json b/tools/= perf/pmu-events/arch/x86/sandybridge/cache.json index 65696ea2a581..4e5572ee7dfe 100644 --- a/tools/perf/pmu-events/arch/x86/sandybridge/cache.json +++ b/tools/perf/pmu-events/arch/x86/sandybridge/cache.json @@ -37,7 +37,7 @@ "UMask": "0x5" }, { - "BriefDescription": "Cycles a demand request was blocked due to Fi= ll Buffers inavailability.", + "BriefDescription": "Cycles a demand request was blocked due to Fi= ll Buffers unavailability.", "CounterMask": "1", "EventCode": "0x48", "EventName": "L1D_PEND_MISS.FB_FULL", @@ -45,7 +45,7 @@ "UMask": "0x2" }, { - "BriefDescription": "L1D miss oustandings duration in cycles.", + "BriefDescription": "L1D miss outstanding duration in cycles.", "EventCode": "0x48", "EventName": "L1D_PEND_MISS.PENDING", "SampleAfterValue": "2000003", @@ -493,7 +493,7 @@ "UMask": "0x8" }, { - "BriefDescription": "Cacheable and noncachaeble code read requests= .", + "BriefDescription": "Cacheable and noncacheable code read requests= .", "EventCode": "0xB0", "EventName": "OFFCORE_REQUESTS.DEMAND_CODE_RD", "SampleAfterValue": "100003", @@ -898,7 +898,7 @@ "UMask": "0x1" }, { - "BriefDescription": "COREWB & ANY_RESPONSE", + "BriefDescription": "OFFCORE_RESPONSE.COREWB.ANY_RESPONSE", "EventCode": "0xB7, 0xBB", "EventName": "OFFCORE_RESPONSE.COREWB.ANY_RESPONSE", "MSRIndex": "0x1a6,0x1a7", diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/floating-point.json= b/tools/perf/pmu-events/arch/x86/sandybridge/floating-point.json index 8c2a246adef9..79e8f403c426 100644 --- a/tools/perf/pmu-events/arch/x86/sandybridge/floating-point.json +++ b/tools/perf/pmu-events/arch/x86/sandybridge/floating-point.json @@ -64,7 +64,7 @@ "UMask": "0x20" }, { - "BriefDescription": "Number of FP Computational Uops Executed this= cycle. The number of FADD, FSUB, FCOM, FMULs, integer MULsand IMULs, FDIVs= , FPREMs, FSQRTS, integer DIVs, and IDIVs. This event does not distinguish = an FADD used in the middle of a transcendental flow from a s.", + "BriefDescription": "Number of FP Computational Uops Executed this= cycle. The number of FADD, FSUB, FCOM, FMULs, integer MULs and IMULs, FDIV= s, FPREMs, FSQRTS, integer DIVs, and IDIVs. This event does not distinguish= an FADD used in the middle of a transcendental flow from a s.", "EventCode": "0x10", "EventName": "FP_COMP_OPS_EXE.X87", "SampleAfterValue": "2000003", diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/frontend.json b/too= ls/perf/pmu-events/arch/x86/sandybridge/frontend.json index 69ab8d215f84..700716b42f1a 100644 --- a/tools/perf/pmu-events/arch/x86/sandybridge/frontend.json +++ b/tools/perf/pmu-events/arch/x86/sandybridge/frontend.json @@ -134,7 +134,7 @@ "UMask": "0x4" }, { - "BriefDescription": "Cycles when uops are being delivered to Instr= uction Decode Queue (IDQ) while Microcode Sequenser (MS) is busy.", + "BriefDescription": "Cycles when uops are being delivered to Instr= uction Decode Queue (IDQ) while Microcode Sequencer (MS) is busy.", "CounterMask": "1", "EventCode": "0x79", "EventName": "IDQ.MS_CYCLES", @@ -143,7 +143,7 @@ "UMask": "0x30" }, { - "BriefDescription": "Cycles when uops initiated by Decode Stream B= uffer (DSB) are being delivered to Instruction Decode Queue (IDQ) while Mic= rocode Sequenser (MS) is busy.", + "BriefDescription": "Cycles when uops initiated by Decode Stream B= uffer (DSB) are being delivered to Instruction Decode Queue (IDQ) while Mic= rocode Sequencer (MS) is busy.", "CounterMask": "1", "EventCode": "0x79", "EventName": "IDQ.MS_DSB_CYCLES", @@ -151,7 +151,7 @@ "UMask": "0x10" }, { - "BriefDescription": "Deliveries to Instruction Decode Queue (IDQ) = initiated by Decode Stream Buffer (DSB) while Microcode Sequenser (MS) is b= usy.", + "BriefDescription": "Deliveries to Instruction Decode Queue (IDQ) = initiated by Decode Stream Buffer (DSB) while Microcode Sequencer (MS) is b= usy.", "CounterMask": "1", "EdgeDetect": "1", "EventCode": "0x79", @@ -160,14 +160,14 @@ "UMask": "0x10" }, { - "BriefDescription": "Uops initiated by Decode Stream Buffer (DSB) = that are being delivered to Instruction Decode Queue (IDQ) while Microcode = Sequenser (MS) is busy.", + "BriefDescription": "Uops initiated by Decode Stream Buffer (DSB) = that are being delivered to Instruction Decode Queue (IDQ) while Microcode = Sequencer (MS) is busy.", "EventCode": "0x79", "EventName": "IDQ.MS_DSB_UOPS", "SampleAfterValue": "2000003", "UMask": "0x10" }, { - "BriefDescription": "Uops initiated by MITE and delivered to Instr= uction Decode Queue (IDQ) while Microcode Sequenser (MS) is busy.", + "BriefDescription": "Uops initiated by MITE and delivered to Instr= uction Decode Queue (IDQ) while Microcode Sequencer (MS) is busy.", "EventCode": "0x79", "EventName": "IDQ.MS_MITE_UOPS", "SampleAfterValue": "2000003", @@ -183,7 +183,7 @@ "UMask": "0x30" }, { - "BriefDescription": "Uops delivered to Instruction Decode Queue (I= DQ) while Microcode Sequenser (MS) is busy.", + "BriefDescription": "Uops delivered to Instruction Decode Queue (I= DQ) while Microcode Sequencer (MS) is busy.", "EventCode": "0x79", "EventName": "IDQ.MS_UOPS", "SampleAfterValue": "2000003", diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/pipeline.json b/too= ls/perf/pmu-events/arch/x86/sandybridge/pipeline.json index 53ab5993e8b0..54454e5e262c 100644 --- a/tools/perf/pmu-events/arch/x86/sandybridge/pipeline.json +++ b/tools/perf/pmu-events/arch/x86/sandybridge/pipeline.json @@ -509,7 +509,7 @@ "BriefDescription": "Cases when loads get true Block-on-Store bloc= king code preventing store forwarding.", "EventCode": "0x03", "EventName": "LD_BLOCKS.STORE_FORWARD", - "PublicDescription": "This event counts loads that followed a stor= e to the same address, where the data could not be forwarded inside the pip= eline from the store to the load. The most common reason why store forward= ing would be blocked is when a load's address range overlaps with a preceed= ing smaller uncompleted store. See the table of not supported store forwar= ds in the Intel(R) 64 and IA-32 Architectures Optimization Reference Manual= . The penalty for blocked store forwarding is that the load must wait for = the store to complete before it can be issued.", + "PublicDescription": "This event counts loads that followed a stor= e to the same address, where the data could not be forwarded inside the pip= eline from the store to the load. The most common reason why store forward= ing would be blocked is when a load's address range overlaps with a precedi= ng smaller uncompleted store. See the table of not supported store forward= s in the Intel(R) 64 and IA-32 Architectures Optimization Reference Manual.= The penalty for blocked store forwarding is that the load must wait for t= he store to complete before it can be issued.", "SampleAfterValue": "100003", "UMask": "0x2" }, diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json b/= tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json index a7b3c835b03d..4a99fe515f4b 100644 --- a/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json +++ b/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json @@ -1,449 +1,510 @@ [ { - "BriefDescription": "This category represents fraction of slots wh= ere the processor's Frontend undersupplies its Backend", - "MetricExpr": "IDQ_UOPS_NOT_DELIVERED.CORE / SLOTS", - "MetricGroup": "PGO;TopdownL1;tma_L1_group", - "MetricName": "tma_frontend_bound", - "PublicDescription": "This category represents fraction of slots w= here the processor's Frontend undersupplies its Backend. Frontend denotes t= he first part of the processor core responsible to fetch operations that ar= e executed later on by the Backend part. Within the Frontend; a branch pred= ictor predicts the next address to fetch; cache-lines are fetched from the = memory subsystem; parsed into instructions; and lastly decoded into micro-o= perations (uops). Ideally the Frontend can issue Machine_Width uops every c= ycle to the Backend. Frontend Bound denotes unutilized issue-slots when the= re is no Backend stall; i.e. bubbles where Frontend delivered no uops while= Backend could have accepted them. For example; stalls due to instruction-c= ache misses would be categorized under Frontend Bound.", - "ScaleUnit": "100%" - }, - { - "BriefDescription": "This metric represents fraction of slots the = CPU was stalled due to Frontend latency issues", - "MetricExpr": "4 * min(CPU_CLK_UNHALTED.THREAD, IDQ_UOPS_NOT_DELIV= ERED.CYCLES_0_UOPS_DELIV.CORE) / SLOTS", - "MetricGroup": "Frontend;TopdownL2;tma_L2_group;tma_frontend_bound= _group", - "MetricName": "tma_fetch_latency", - "PublicDescription": "This metric represents fraction of slots the= CPU was stalled due to Frontend latency issues. For example; instruction-= cache misses; iTLB misses or fetch stalls after a branch misprediction are = categorized under Frontend Latency. In such cases; the Frontend eventually = delivers no uops for some period. Sample with: RS_EVENTS.EMPTY_END", + "BriefDescription": "C2 residency percent per package", + "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C2_Pkg_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to Instruction TLB (ITLB) misses", - "MetricExpr": "(12 * ITLB_MISSES.STLB_HIT + ITLB_MISSES.WALK_DURAT= ION) / CLKS", - "MetricGroup": "BigFoot;FetchLat;MemoryTLB;TopdownL3;tma_fetch_lat= ency_group", - "MetricName": "tma_itlb_misses", - "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to Instruction TLB (ITLB) misses. Sample with: ITLB_M= ISSES.WALK_COMPLETED", + "BriefDescription": "C3 residency percent per core", + "MetricExpr": "cstate_core@c3\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C3_Core_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to Branch Resteers", - "MetricExpr": "12 * (BR_MISP_RETIRED.ALL_BRANCHES + MACHINE_CLEARS= .COUNT + BACLEARS.ANY) / CLKS", - "MetricGroup": "FetchLat;TopdownL3;tma_fetch_latency_group", - "MetricName": "tma_branch_resteers", - "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to Branch Resteers. Branch Resteers estimates the Fro= ntend delay in fetching operations from corrected path; following all sorts= of miss-predicted branches. For example; branchy code with lots of miss-pr= edictions might get categorized under Branch Resteers. Note the value of th= is node may overlap with its siblings. Sample with: BR_MISP_RETIRED.ALL_BRA= NCHES", + "BriefDescription": "C3 residency percent per package", + "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C3_Pkg_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to switches from DSB to MITE pipelines", - "MetricExpr": "DSB2MITE_SWITCHES.PENALTY_CYCLES / CLKS", - "MetricGroup": "DSBmiss;FetchLat;TopdownL3;tma_fetch_latency_group= ", - "MetricName": "tma_dsb_switches", - "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to switches from DSB to MITE pipelines. The DSB (deco= ded i-cache) is a Uop Cache where the front-end directly delivers Uops (mic= ro operations) avoiding heavy x86 decoding. The DSB pipeline has shorter la= tency and delivered higher bandwidth than the MITE (legacy instruction deco= de pipeline). Switching between the two pipelines can cause penalties hence= this metric measures the exposed penalty.", + "BriefDescription": "C6 residency percent per core", + "MetricExpr": "cstate_core@c6\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C6_Core_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of cycles CPU= was stalled due to Length Changing Prefixes (LCPs)", - "MetricExpr": "ILD_STALL.LCP / CLKS", - "MetricGroup": "FetchLat;TopdownL3;tma_fetch_latency_group", - "MetricName": "tma_lcp", - "PublicDescription": "This metric represents fraction of cycles CP= U was stalled due to Length Changing Prefixes (LCPs). Using proper compiler= flags or Intel Compiler by default will certainly avoid this. #Link: Optim= ization Guide about LCP BKMs.", + "BriefDescription": "C6 residency percent per package", + "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C6_Pkg_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric estimates the fraction of cycles = when the CPU was stalled due to switches of uop delivery to the Microcode S= equencer (MS)", - "MetricExpr": "3 * IDQ.MS_SWITCHES / CLKS", - "MetricGroup": "FetchLat;MicroSeq;TopdownL3;tma_fetch_latency_grou= p", - "MetricName": "tma_ms_switches", - "PublicDescription": "This metric estimates the fraction of cycles= when the CPU was stalled due to switches of uop delivery to the Microcode = Sequencer (MS). Commonly used instructions are optimized for delivery by th= e DSB (decoded i-cache) or MITE (legacy instruction decode) pipelines. Cert= ain operations cannot be handled natively by the execution pipeline; and mu= st be performed by microcode (small programs injected into the execution st= ream). Switching to the MS too often can negatively impact performance. The= MS is designated to deliver long uop flows required by CISC instructions l= ike CPUID; or uncommon conditions like Floating Point Assists when dealing = with Denormals. Sample with: IDQ.MS_SWITCHES", + "BriefDescription": "C7 residency percent per core", + "MetricExpr": "cstate_core@c7\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C7_Core_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots the = CPU was stalled due to Frontend bandwidth issues", - "MetricExpr": "tma_frontend_bound - tma_fetch_latency", - "MetricGroup": "FetchBW;Frontend;TopdownL2;tma_L2_group;tma_fronte= nd_bound_group", - "MetricName": "tma_fetch_bandwidth", - "PublicDescription": "This metric represents fraction of slots the= CPU was stalled due to Frontend bandwidth issues. For example; inefficien= cies at the instruction decoders; or restrictions for caching in the DSB (d= ecoded uops cache) are categorized under Fetch Bandwidth. In such cases; th= e Frontend typically delivers suboptimal amount of uops to the Backend.", + "BriefDescription": "C7 residency percent per package", + "MetricExpr": "cstate_pkg@c7\\-residency@ / TSC", + "MetricGroup": "Power", + "MetricName": "C7_Pkg_Residency", "ScaleUnit": "100%" }, { - "BriefDescription": "This category represents fraction of slots wa= sted due to incorrect speculations", - "MetricExpr": "(UOPS_ISSUED.ANY - UOPS_RETIRED.RETIRE_SLOTS + 4 * = (INT_MISC.RECOVERY_CYCLES_ANY / 2 if #SMT_on else INT_MISC.RECOVERY_CYCLES)= ) / SLOTS", - "MetricGroup": "TopdownL1;tma_L1_group", - "MetricName": "tma_bad_speculation", - "PublicDescription": "This category represents fraction of slots w= asted due to incorrect speculations. This include slots used to issue uops = that do not eventually get retired and slots for which the issue-pipeline w= as blocked due to recovery from earlier incorrect speculation. For example;= wasted work due to miss-predicted branches are categorized under Bad Specu= lation category. Incorrect data speculation followed by Memory Ordering Nuk= es is another example.", - "ScaleUnit": "100%" + "BriefDescription": "Uncore frequency per die [GHZ]", + "MetricExpr": "tma_info_socket_clks / #num_dies / duration_time / = 1e9", + "MetricGroup": "SoC", + "MetricName": "UNCORE_FREQ" }, { - "BriefDescription": "This metric represents fraction of slots the = CPU has wasted due to Branch Misprediction", - "MetricExpr": "BR_MISP_RETIRED.ALL_BRANCHES / (BR_MISP_RETIRED.ALL= _BRANCHES + MACHINE_CLEARS.COUNT) * tma_bad_speculation", - "MetricGroup": "BadSpec;BrMispredicts;TopdownL2;tma_L2_group;tma_b= ad_speculation_group", - "MetricName": "tma_branch_mispredicts", - "PublicDescription": "This metric represents fraction of slots the= CPU has wasted due to Branch Misprediction. These slots are either wasted= by uops fetched from an incorrectly speculated program path; or stalls whe= n the out-of-order part of the machine needs to recover its state from a sp= eculative path. Sample with: BR_MISP_RETIRED.ALL_BRANCHES", + "BriefDescription": "Percentage of cycles spent in System Manageme= nt Interrupts.", + "MetricExpr": "((msr@aperf@ - cycles) / msr@aperf@ if msr@smi@ > 0= else 0)", + "MetricGroup": "smi", + "MetricName": "smi_cycles", + "MetricThreshold": "smi_cycles > 0.1", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots the = CPU has wasted due to Machine Clears", - "MetricExpr": "tma_bad_speculation - tma_branch_mispredicts", - "MetricGroup": "BadSpec;MachineClears;TopdownL2;tma_L2_group;tma_b= ad_speculation_group", - "MetricName": "tma_machine_clears", - "PublicDescription": "This metric represents fraction of slots the= CPU has wasted due to Machine Clears. These slots are either wasted by uo= ps fetched prior to the clear; or stalls the out-of-order portion of the ma= chine needs to recover its state after the clear. For example; this can hap= pen due to memory ordering Nukes (e.g. Memory Disambiguation) or Self-Modif= ying-Code (SMC) nukes. Sample with: MACHINE_CLEARS.COUNT", - "ScaleUnit": "100%" + "BriefDescription": "Number of SMI interrupts.", + "MetricExpr": "msr@smi@", + "MetricGroup": "smi", + "MetricName": "smi_num", + "ScaleUnit": "1SMI#" }, { "BriefDescription": "This category represents fraction of slots wh= ere no uops are being delivered due to a lack of required resources for acc= epting new uops in the Backend", + "MetricConstraint": "NO_GROUP_EVENTS_NMI", "MetricExpr": "1 - (tma_frontend_bound + tma_bad_speculation + tma= _retiring)", - "MetricGroup": "TopdownL1;tma_L1_group", + "MetricGroup": "TmaL1;TopdownL1;tma_L1_group", "MetricName": "tma_backend_bound", + "MetricThreshold": "tma_backend_bound > 0.2", "PublicDescription": "This category represents fraction of slots w= here no uops are being delivered due to a lack of required resources for ac= cepting new uops in the Backend. Backend is the portion of the processor co= re where the out-of-order scheduler dispatches ready uops into their respec= tive execution units; and once completed these uops get retired according t= o program order. For example; stalls due to data-cache misses or stalls due= to the divider unit being overloaded are both categorized under Backend Bo= und. Backend Bound is further divided into two main categories: Memory Boun= d and Core Bound.", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots the = Memory subsystem within the Backend was a bottleneck", - "MetricExpr": "(min(CPU_CLK_UNHALTED.THREAD, CYCLE_ACTIVITY.STALLS= _L1D_PENDING) + RESOURCE_STALLS.SB) / (min(CPU_CLK_UNHALTED.THREAD, CYCLE_A= CTIVITY.CYCLES_NO_DISPATCH) + cpu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D1@ - c= pu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D3@ if IPC > 1.8 else (cpu@UOPS_DISPAT= CHED.THREAD\\,cmask\\=3D2@ - RS_EVENTS.EMPTY_CYCLES if tma_fetch_latency > = 0.1 else RESOURCE_STALLS.SB)) * tma_backend_bound", - "MetricGroup": "Backend;TopdownL2;tma_L2_group;tma_backend_bound_g= roup", - "MetricName": "tma_memory_bound", - "PublicDescription": "This metric represents fraction of slots the= Memory subsystem within the Backend was a bottleneck. Memory Bound estima= tes fraction of slots where pipeline is likely stalled due to demand load o= r store instructions. This accounts mainly for (1) non-completed in-flight = memory demand loads which coincides with execution units starvation; in add= ition to (2) cases where stores could impose backpressure on the pipeline w= hen many of them get buffered at the same time (less common out of the two)= .", - "ScaleUnit": "100%" - }, - { - "BriefDescription": "This metric roughly estimates the fraction of= cycles where the Data TLB (DTLB) was missed by load accesses", - "MetricExpr": "(7 * DTLB_LOAD_MISSES.STLB_HIT + DTLB_LOAD_MISSES.W= ALK_DURATION) / CLKS", - "MetricGroup": "MemoryTLB;TopdownL4;tma_l1_bound_group", - "MetricName": "tma_dtlb_load", - "PublicDescription": "This metric roughly estimates the fraction o= f cycles where the Data TLB (DTLB) was missed by load accesses. TLBs (Trans= lation Look-aside Buffers) are processor caches for recently used entries o= ut of the Page Tables that are used to map virtual- to physical-addresses b= y the operating system. This metric approximates the potential delay of dem= and loads missing the first-level data TLB (assuming worst case scenario wi= th back to back misses to different pages). This includes hitting in the se= cond-level TLB (STLB) as well as performing a hardware page walk on an STLB= miss. Sample with: MEM_UOPS_RETIRED.STLB_MISS_LOADS_PS", - "ScaleUnit": "100%" - }, - { - "BriefDescription": "This metric estimates how often the CPU was s= talled due to loads accesses to L3 cache or contended with a sibling Core", - "MetricExpr": "MEM_LOAD_UOPS_RETIRED.LLC_HIT / (MEM_LOAD_UOPS_RETI= RED.LLC_HIT + 7 * MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS) * CYCLE_ACTIVITY.STA= LLS_L2_PENDING / CLKS", - "MetricGroup": "CacheMisses;MemoryBound;TmaL3mem;TopdownL3;tma_mem= ory_bound_group", - "MetricName": "tma_l3_bound", - "PublicDescription": "This metric estimates how often the CPU was = stalled due to loads accesses to L3 cache or contended with a sibling Core.= Avoiding cache misses (i.e. L2 misses/L3 hits) can improve the latency an= d increase performance. Sample with: MEM_LOAD_UOPS_RETIRED.L3_HIT_PS", - "ScaleUnit": "100%" - }, - { - "BriefDescription": "This metric estimates how often the CPU was s= talled on accesses to external memory (DRAM) by loads", - "MetricExpr": "(1 - MEM_LOAD_UOPS_RETIRED.LLC_HIT / (MEM_LOAD_UOPS= _RETIRED.LLC_HIT + 7 * MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS)) * CYCLE_ACTIVI= TY.STALLS_L2_PENDING / CLKS", - "MetricGroup": "MemoryBound;TmaL3mem;TopdownL3;tma_memory_bound_gr= oup", - "MetricName": "tma_dram_bound", - "PublicDescription": "This metric estimates how often the CPU was = stalled on accesses to external memory (DRAM) by loads. Better caching can = improve the latency and increase performance. Sample with: MEM_LOAD_UOPS_RE= TIRED.L3_MISS_PS", - "ScaleUnit": "100%" - }, - { - "BriefDescription": "This metric estimates fraction of cycles wher= e the core's performance was likely hurt due to approaching bandwidth limit= s of external memory (DRAM)", - "MetricExpr": "min(CPU_CLK_UNHALTED.THREAD, cpu@OFFCORE_REQUESTS_O= UTSTANDING.ALL_DATA_RD\\,cmask\\=3D6@) / CLKS", - "MetricGroup": "MemoryBW;Offcore;TopdownL4;tma_dram_bound_group", - "MetricName": "tma_mem_bandwidth", - "PublicDescription": "This metric estimates fraction of cycles whe= re the core's performance was likely hurt due to approaching bandwidth limi= ts of external memory (DRAM). The underlying heuristic assumes that a simi= lar off-core traffic is generated by all IA cores. This metric does not agg= regate non-data-read requests by this logical processor; requests from othe= r IA Logical Processors/Physical Cores/sockets; or other non-IA devices lik= e GPU; hence the maximum external memory bandwidth limits may or may not be= approached when this metric is flagged (see Uncore counters for that).", + "BriefDescription": "This category represents fraction of slots wa= sted due to incorrect speculations", + "MetricExpr": "(UOPS_ISSUED.ANY - UOPS_RETIRED.RETIRE_SLOTS + 4 * = (INT_MISC.RECOVERY_CYCLES_ANY / 2 if #SMT_on else INT_MISC.RECOVERY_CYCLES)= ) / tma_info_slots", + "MetricGroup": "TmaL1;TopdownL1;tma_L1_group", + "MetricName": "tma_bad_speculation", + "MetricThreshold": "tma_bad_speculation > 0.15", + "PublicDescription": "This category represents fraction of slots w= asted due to incorrect speculations. This include slots used to issue uops = that do not eventually get retired and slots for which the issue-pipeline w= as blocked due to recovery from earlier incorrect speculation. For example;= wasted work due to miss-predicted branches are categorized under Bad Specu= lation category. Incorrect data speculation followed by Memory Ordering Nuk= es is another example.", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric estimates fraction of cycles wher= e the performance was likely hurt due to latency from external memory (DRAM= )", - "MetricExpr": "min(CPU_CLK_UNHALTED.THREAD, OFFCORE_REQUESTS_OUTST= ANDING.CYCLES_WITH_DATA_RD) / CLKS - tma_mem_bandwidth", - "MetricGroup": "MemoryLat;Offcore;TopdownL4;tma_dram_bound_group", - "MetricName": "tma_mem_latency", - "PublicDescription": "This metric estimates fraction of cycles whe= re the performance was likely hurt due to latency from external memory (DRA= M). This metric does not aggregate requests from other Logical Processors/= Physical Cores/sockets (see Uncore counters for that).", + "BriefDescription": "This metric represents fraction of slots the = CPU has wasted due to Branch Misprediction", + "MetricConstraint": "NO_GROUP_EVENTS", + "MetricExpr": "BR_MISP_RETIRED.ALL_BRANCHES / (BR_MISP_RETIRED.ALL= _BRANCHES + MACHINE_CLEARS.COUNT) * tma_bad_speculation", + "MetricGroup": "BadSpec;BrMispredicts;TmaL2;TopdownL2;tma_L2_group= ;tma_bad_speculation_group;tma_issueBM", + "MetricName": "tma_branch_mispredicts", + "MetricThreshold": "tma_branch_mispredicts > 0.1 & tma_bad_specula= tion > 0.15", + "PublicDescription": "This metric represents fraction of slots the= CPU has wasted due to Branch Misprediction. These slots are either wasted= by uops fetched from an incorrectly speculated program path; or stalls whe= n the out-of-order part of the machine needs to recover its state from a sp= eculative path. Sample with: BR_MISP_RETIRED.ALL_BRANCHES. Related metrics:= tma_info_branch_misprediction_cost, tma_mispredicts_resteers", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric estimates how often CPU was stall= ed due to RFO store memory accesses; RFO store issue a read-for-ownership = request before the write", - "MetricExpr": "RESOURCE_STALLS.SB / CLKS", - "MetricGroup": "MemoryBound;TmaL3mem;TopdownL3;tma_memory_bound_gr= oup", - "MetricName": "tma_store_bound", - "PublicDescription": "This metric estimates how often CPU was stal= led due to RFO store memory accesses; RFO store issue a read-for-ownership= request before the write. Even though store accesses do not typically stal= l out-of-order CPUs; there are few cases where stores can lead to actual st= alls. This metric will be flagged should RFO stores be a bottleneck. Sample= with: MEM_UOPS_RETIRED.ALL_STORES_PS", + "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to Branch Resteers", + "MetricExpr": "12 * (BR_MISP_RETIRED.ALL_BRANCHES + MACHINE_CLEARS= .COUNT + BACLEARS.ANY) / tma_info_clks", + "MetricGroup": "FetchLat;TopdownL3;tma_L3_group;tma_fetch_latency_= group", + "MetricName": "tma_branch_resteers", + "MetricThreshold": "tma_branch_resteers > 0.05 & (tma_fetch_latenc= y > 0.1 & tma_frontend_bound > 0.15)", + "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to Branch Resteers. Branch Resteers estimates the Fro= ntend delay in fetching operations from corrected path; following all sorts= of miss-predicted branches. For example; branchy code with lots of miss-pr= edictions might get categorized under Branch Resteers. Note the value of th= is node may overlap with its siblings. Sample with: BR_MISP_RETIRED.ALL_BRA= NCHES", "ScaleUnit": "100%" }, { "BriefDescription": "This metric represents fraction of slots wher= e Core non-memory issues were of a bottleneck", + "MetricConstraint": "NO_GROUP_EVENTS", "MetricExpr": "tma_backend_bound - tma_memory_bound", - "MetricGroup": "Backend;Compute;TopdownL2;tma_L2_group;tma_backend= _bound_group", + "MetricGroup": "Backend;Compute;TmaL2;TopdownL2;tma_L2_group;tma_b= ackend_bound_group", "MetricName": "tma_core_bound", + "MetricThreshold": "tma_core_bound > 0.1 & tma_backend_bound > 0.2= ", "PublicDescription": "This metric represents fraction of slots whe= re Core non-memory issues were of a bottleneck. Shortage in hardware compu= te resources; or dependencies in software's instructions are both categoriz= ed under Core Bound. Hence it may indicate the machine ran out of an out-of= -order resource; certain execution units are overloaded or dependencies in = program's data- or instruction-flow are limiting the performance (e.g. FP-c= hained long-latency arithmetic operations).", "ScaleUnit": "100%" }, { "BriefDescription": "This metric represents fraction of cycles whe= re the Divider unit was active", - "MetricExpr": "ARITH.FPU_DIV_ACTIVE / CORE_CLKS", - "MetricGroup": "TopdownL3;tma_core_bound_group", + "MetricExpr": "ARITH.FPU_DIV_ACTIVE / tma_info_core_clks", + "MetricGroup": "TopdownL3;tma_L3_group;tma_core_bound_group", "MetricName": "tma_divider", + "MetricThreshold": "tma_divider > 0.2 & (tma_core_bound > 0.1 & tm= a_backend_bound > 0.2)", "PublicDescription": "This metric represents fraction of cycles wh= ere the Divider unit was active. Divide and square root instructions are pe= rformed by the Divider unit and can take considerably longer latency than i= nteger or Floating Point addition; subtraction; or multiplication. Sample w= ith: ARITH.DIVIDER_UOPS", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric estimates fraction of cycles the = CPU performance was potentially limited due to Core computation issues (non= divider-related)", - "MetricExpr": "((min(CPU_CLK_UNHALTED.THREAD, CYCLE_ACTIVITY.CYCLE= S_NO_DISPATCH) + cpu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D1@ - cpu@UOPS_DISPA= TCHED.THREAD\\,cmask\\=3D3@ if IPC > 1.8 else (cpu@UOPS_DISPATCHED.THREAD\\= ,cmask\\=3D2@ - RS_EVENTS.EMPTY_CYCLES if tma_fetch_latency > 0.1 else RESO= URCE_STALLS.SB)) - RESOURCE_STALLS.SB - min(CPU_CLK_UNHALTED.THREAD, CYCLE_= ACTIVITY.STALLS_L1D_PENDING)) / CLKS", - "MetricGroup": "PortsUtil;TopdownL3;tma_core_bound_group", - "MetricName": "tma_ports_utilization", - "PublicDescription": "This metric estimates fraction of cycles the= CPU performance was potentially limited due to Core computation issues (no= n divider-related). Two distinct categories can be attributed into this me= tric: (1) heavy data-dependency among contiguous instructions would manifes= t in this metric - such cases are often referred to as low Instruction Leve= l Parallelism (ILP). (2) Contention on some hardware execution unit other t= han Divider. For example; when there are too many multiply operations.", + "BriefDescription": "This metric estimates how often the CPU was s= talled on accesses to external memory (DRAM) by loads", + "MetricConstraint": "NO_GROUP_EVENTS_SMT", + "MetricExpr": "(1 - MEM_LOAD_UOPS_RETIRED.LLC_HIT / (MEM_LOAD_UOPS= _RETIRED.LLC_HIT + 7 * MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS)) * CYCLE_ACTIVI= TY.STALLS_L2_PENDING / tma_info_clks", + "MetricGroup": "MemoryBound;TmaL3mem;TopdownL3;tma_L3_group;tma_me= mory_bound_group", + "MetricName": "tma_dram_bound", + "MetricThreshold": "tma_dram_bound > 0.1 & (tma_memory_bound > 0.2= & tma_backend_bound > 0.2)", + "PublicDescription": "This metric estimates how often the CPU was = stalled on accesses to external memory (DRAM) by loads. Better caching can = improve the latency and increase performance. Sample with: MEM_LOAD_UOPS_RE= TIRED.L3_MISS_PS", "ScaleUnit": "100%" }, { - "BriefDescription": "This category represents fraction of slots ut= ilized by useful work i.e. issued uops that eventually get retired", - "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / SLOTS", - "MetricGroup": "TopdownL1;tma_L1_group", - "MetricName": "tma_retiring", - "PublicDescription": "This category represents fraction of slots u= tilized by useful work i.e. issued uops that eventually get retired. Ideall= y; all pipeline slots would be attributed to the Retiring category. Retiri= ng of 100% would indicate the maximum Pipeline_Width throughput was achieve= d. Maximizing Retiring typically increases the Instructions-per-cycle (see= IPC metric). Note that a high Retiring value does not necessary mean there= is no room for more performance. For example; Heavy-operations or Microco= de Assists are categorized under Retiring. They often indicate suboptimal p= erformance and can often be optimized or avoided. Sample with: UOPS_RETIRE= D.RETIRE_SLOTS", + "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to switches from DSB to MITE pipelines", + "MetricExpr": "DSB2MITE_SWITCHES.PENALTY_CYCLES / tma_info_clks", + "MetricGroup": "DSBmiss;FetchLat;TopdownL3;tma_L3_group;tma_fetch_= latency_group;tma_issueFB", + "MetricName": "tma_dsb_switches", + "MetricThreshold": "tma_dsb_switches > 0.05 & (tma_fetch_latency >= 0.1 & tma_frontend_bound > 0.15)", + "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to switches from DSB to MITE pipelines. The DSB (deco= ded i-cache) is a Uop Cache where the front-end directly delivers Uops (mic= ro operations) avoiding heavy x86 decoding. The DSB pipeline has shorter la= tency and delivered higher bandwidth than the MITE (legacy instruction deco= de pipeline). Switching between the two pipelines can cause penalties hence= this metric measures the exposed penalty. Related metrics: tma_fetch_bandw= idth, tma_info_dsb_coverage, tma_lcp", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots wher= e the CPU was retiring light-weight operations -- instructions that require= no more than one uop (micro-operation)", - "MetricExpr": "tma_retiring - tma_heavy_operations", - "MetricGroup": "Retire;TopdownL2;tma_L2_group;tma_retiring_group", - "MetricName": "tma_light_operations", - "PublicDescription": "This metric represents fraction of slots whe= re the CPU was retiring light-weight operations -- instructions that requir= e no more than one uop (micro-operation). This correlates with total number= of instructions used by the program. A uops-per-instruction (see UPI metri= c) ratio of 1 or less should be expected for decently optimized software ru= nning on Intel Core/Xeon products. While this often indicates efficient X86= instructions were executed; high value does not necessarily mean better pe= rformance cannot be achieved. Sample with: INST_RETIRED.PREC_DIST", + "BriefDescription": "This metric roughly estimates the fraction of= cycles where the Data TLB (DTLB) was missed by load accesses", + "MetricExpr": "(7 * DTLB_LOAD_MISSES.STLB_HIT + DTLB_LOAD_MISSES.W= ALK_DURATION) / tma_info_clks", + "MetricGroup": "MemoryTLB;TopdownL4;tma_L4_group;tma_issueTLB;tma_= l1_bound_group", + "MetricName": "tma_dtlb_load", + "MetricThreshold": "tma_dtlb_load > 0.1", + "PublicDescription": "This metric roughly estimates the fraction o= f cycles where the Data TLB (DTLB) was missed by load accesses. TLBs (Trans= lation Look-aside Buffers) are processor caches for recently used entries o= ut of the Page Tables that are used to map virtual- to physical-addresses b= y the operating system. This metric approximates the potential delay of dem= and loads missing the first-level data TLB (assuming worst case scenario wi= th back to back misses to different pages). This includes hitting in the se= cond-level TLB (STLB) as well as performing a hardware page walk on an STLB= miss. Sample with: MEM_UOPS_RETIRED.STLB_MISS_LOADS_PS. Related metrics: t= ma_dtlb_store", + "ScaleUnit": "100%" + }, + { + "BriefDescription": "This metric represents fraction of slots the = CPU was stalled due to Frontend bandwidth issues", + "MetricExpr": "tma_frontend_bound - tma_fetch_latency", + "MetricGroup": "FetchBW;Frontend;TmaL2;TopdownL2;tma_L2_group;tma_= frontend_bound_group;tma_issueFB", + "MetricName": "tma_fetch_bandwidth", + "MetricThreshold": "tma_fetch_bandwidth > 0.1 & tma_frontend_bound= > 0.15 & tma_info_ipc / 4 > 0.35", + "PublicDescription": "This metric represents fraction of slots the= CPU was stalled due to Frontend bandwidth issues. For example; inefficien= cies at the instruction decoders; or restrictions for caching in the DSB (d= ecoded uops cache) are categorized under Fetch Bandwidth. In such cases; th= e Frontend typically delivers suboptimal amount of uops to the Backend. Rel= ated metrics: tma_dsb_switches, tma_info_dsb_coverage, tma_lcp", + "ScaleUnit": "100%" + }, + { + "BriefDescription": "This metric represents fraction of slots the = CPU was stalled due to Frontend latency issues", + "MetricExpr": "4 * min(CPU_CLK_UNHALTED.THREAD, IDQ_UOPS_NOT_DELIV= ERED.CYCLES_0_UOPS_DELIV.CORE) / tma_info_slots", + "MetricGroup": "Frontend;TmaL2;TopdownL2;tma_L2_group;tma_frontend= _bound_group", + "MetricName": "tma_fetch_latency", + "MetricThreshold": "tma_fetch_latency > 0.1 & tma_frontend_bound >= 0.15", + "PublicDescription": "This metric represents fraction of slots the= CPU was stalled due to Frontend latency issues. For example; instruction-= cache misses; iTLB misses or fetch stalls after a branch misprediction are = categorized under Frontend Latency. In such cases; the Frontend eventually = delivers no uops for some period. Sample with: RS_EVENTS.EMPTY_END", "ScaleUnit": "100%" }, { "BriefDescription": "This metric represents overall arithmetic flo= ating-point (FP) operations fraction the CPU has executed (retired)", "MetricExpr": "tma_x87_use + tma_fp_scalar + tma_fp_vector", - "MetricGroup": "HPC;TopdownL3;tma_light_operations_group", + "MetricGroup": "HPC;TopdownL3;tma_L3_group;tma_light_operations_gr= oup", "MetricName": "tma_fp_arith", + "MetricThreshold": "tma_fp_arith > 0.2 & tma_light_operations > 0.= 6", "PublicDescription": "This metric represents overall arithmetic fl= oating-point (FP) operations fraction the CPU has executed (retired). Note = this metric's value may exceed its parent due to use of \"Uops\" CountDomai= n and FMA double-counting.", "ScaleUnit": "100%" }, - { - "BriefDescription": "This metric serves as an approximation of leg= acy x87 usage", - "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS * FP_COMP_OPS_EXE.X87 / U= OPS_DISPATCHED.THREAD", - "MetricGroup": "Compute;TopdownL4;tma_fp_arith_group", - "MetricName": "tma_x87_use", - "PublicDescription": "This metric serves as an approximation of le= gacy x87 usage. It accounts for instructions beyond X87 FP arithmetic opera= tions; hence may be used as a thermometer to avoid X87 high usage and prefe= rably upgrade to modern ISA. See Tip under Tuning Hint.", - "ScaleUnit": "100%" - }, { "BriefDescription": "This metric approximates arithmetic floating-= point (FP) scalar uops fraction the CPU has retired", "MetricExpr": "(FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EX= E.SSE_SCALAR_DOUBLE) / UOPS_DISPATCHED.THREAD", - "MetricGroup": "Compute;Flops;TopdownL4;tma_fp_arith_group", + "MetricGroup": "Compute;Flops;TopdownL4;tma_L4_group;tma_fp_arith_= group;tma_issue2P", "MetricName": "tma_fp_scalar", - "PublicDescription": "This metric approximates arithmetic floating= -point (FP) scalar uops fraction the CPU has retired. May overcount due to = FMA double counting.", + "MetricThreshold": "tma_fp_scalar > 0.1 & (tma_fp_arith > 0.2 & tm= a_light_operations > 0.6)", + "PublicDescription": "This metric approximates arithmetic floating= -point (FP) scalar uops fraction the CPU has retired. May overcount due to = FMA double counting. Related metrics: tma_fp_vector, tma_fp_vector_512b, tm= a_port_6, tma_ports_utilized_2", "ScaleUnit": "100%" }, { "BriefDescription": "This metric approximates arithmetic floating-= point (FP) vector uops fraction the CPU has retired aggregated across all v= ector widths", "MetricExpr": "(FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + FP_COMP_OPS_EX= E.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE= ) / UOPS_DISPATCHED.THREAD", - "MetricGroup": "Compute;Flops;TopdownL4;tma_fp_arith_group", + "MetricGroup": "Compute;Flops;TopdownL4;tma_L4_group;tma_fp_arith_= group;tma_issue2P", "MetricName": "tma_fp_vector", - "PublicDescription": "This metric approximates arithmetic floating= -point (FP) vector uops fraction the CPU has retired aggregated across all = vector widths. May overcount due to FMA double counting.", + "MetricThreshold": "tma_fp_vector > 0.1 & (tma_fp_arith > 0.2 & tm= a_light_operations > 0.6)", + "PublicDescription": "This metric approximates arithmetic floating= -point (FP) vector uops fraction the CPU has retired aggregated across all = vector widths. May overcount due to FMA double counting. Related metrics: t= ma_fp_scalar, tma_fp_vector_512b, tma_port_6, tma_ports_utilized_2", + "ScaleUnit": "100%" + }, + { + "BriefDescription": "This category represents fraction of slots wh= ere the processor's Frontend undersupplies its Backend", + "MetricExpr": "IDQ_UOPS_NOT_DELIVERED.CORE / tma_info_slots", + "MetricGroup": "PGO;TmaL1;TopdownL1;tma_L1_group", + "MetricName": "tma_frontend_bound", + "MetricThreshold": "tma_frontend_bound > 0.15", + "PublicDescription": "This category represents fraction of slots w= here the processor's Frontend undersupplies its Backend. Frontend denotes t= he first part of the processor core responsible to fetch operations that ar= e executed later on by the Backend part. Within the Frontend; a branch pred= ictor predicts the next address to fetch; cache-lines are fetched from the = memory subsystem; parsed into instructions; and lastly decoded into micro-o= perations (uops). Ideally the Frontend can issue Pipeline_Width uops every = cycle to the Backend. Frontend Bound denotes unutilized issue-slots when th= ere is no Backend stall; i.e. bubbles where Frontend delivered no uops whil= e Backend could have accepted them. For example; stalls due to instruction-= cache misses would be categorized under Frontend Bound.", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots wher= e the CPU was retiring heavy-weight operations -- instructions that require= two or more uops or microcoded sequences", + "BriefDescription": "This metric represents fraction of slots wher= e the CPU was retiring heavy-weight operations -- instructions that require= two or more uops or micro-coded sequences", "MetricExpr": "tma_microcode_sequencer", - "MetricGroup": "Retire;TopdownL2;tma_L2_group;tma_retiring_group", + "MetricGroup": "Retire;TmaL2;TopdownL2;tma_L2_group;tma_retiring_g= roup", "MetricName": "tma_heavy_operations", - "PublicDescription": "This metric represents fraction of slots whe= re the CPU was retiring heavy-weight operations -- instructions that requir= e two or more uops or microcoded sequences. This highly-correlates with the= uop length of these instructions/sequences.", + "MetricThreshold": "tma_heavy_operations > 0.1", + "PublicDescription": "This metric represents fraction of slots whe= re the CPU was retiring heavy-weight operations -- instructions that requir= e two or more uops or micro-coded sequences. This highly-correlates with th= e uop length of these instructions/sequences.", "ScaleUnit": "100%" }, { - "BriefDescription": "This metric represents fraction of slots the = CPU was retiring uops fetched by the Microcode Sequencer (MS) unit", - "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / UOPS_ISSUED.ANY * IDQ.M= S_UOPS / SLOTS", - "MetricGroup": "MicroSeq;TopdownL3;tma_heavy_operations_group", - "MetricName": "tma_microcode_sequencer", - "PublicDescription": "This metric represents fraction of slots the= CPU was retiring uops fetched by the Microcode Sequencer (MS) unit. The M= S is used for CISC instructions not supported by the default decoders (like= repeat move strings; or CPUID); or by microcode assists used to address so= me operation modes (like in Floating Point assists). These cases can often = be avoided. Sample with: IDQ.MS_UOPS", - "ScaleUnit": "100%" + "BriefDescription": "Measured Average Frequency for unhalted proce= ssors [GHz]", + "MetricExpr": "tma_info_turbo_utilization * TSC / 1e9 / duration_t= ime", + "MetricGroup": "Power;Summary", + "MetricName": "tma_info_average_frequency" }, { - "BriefDescription": "Instructions Per Cycle (per Logical Processor= )", - "MetricExpr": "INST_RETIRED.ANY / CLKS", - "MetricGroup": "Ret;Summary", - "MetricName": "IPC" + "BriefDescription": "Per-Logical Processor actual clocks when the = Logical Processor is active.", + "MetricExpr": "CPU_CLK_UNHALTED.THREAD", + "MetricGroup": "Pipeline", + "MetricName": "tma_info_clks" }, { - "BriefDescription": "Uops Per Instruction", - "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY", - "MetricGroup": "Pipeline;Ret;Retire", - "MetricName": "UPI" + "BriefDescription": "Core actual clocks when any Logical Processor= is active on the Physical Core", + "MetricExpr": "(CPU_CLK_UNHALTED.THREAD / 2 * (1 + CPU_CLK_UNHALTE= D.ONE_THREAD_ACTIVE / CPU_CLK_UNHALTED.REF_XCLK) if #core_wide < 1 else (CP= U_CLK_UNHALTED.THREAD_ANY / 2 if #SMT_on else tma_info_clks))", + "MetricGroup": "SMT", + "MetricName": "tma_info_core_clks" + }, + { + "BriefDescription": "Instructions Per Cycle across hyper-threads (= per physical core)", + "MetricExpr": "INST_RETIRED.ANY / tma_info_core_clks", + "MetricGroup": "Ret;SMT;TmaL1;tma_L1_group", + "MetricName": "tma_info_coreipc" }, { "BriefDescription": "Cycles Per Instruction (per Logical Processor= )", - "MetricExpr": "1 / IPC", + "MetricExpr": "1 / tma_info_ipc", "MetricGroup": "Mem;Pipeline", - "MetricName": "CPI" + "MetricName": "tma_info_cpi" }, { - "BriefDescription": "Per-Logical Processor actual clocks when the = Logical Processor is active.", - "MetricExpr": "CPU_CLK_UNHALTED.THREAD", - "MetricGroup": "Pipeline", - "MetricName": "CLKS" + "BriefDescription": "Average CPU Utilization", + "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / TSC", + "MetricGroup": "HPC;Summary", + "MetricName": "tma_info_cpu_utilization" }, { - "BriefDescription": "Total issue-pipeline slots (per-Physical Core= till ICL; per-Logical Processor ICL onward)", - "MetricExpr": "4 * CORE_CLKS", - "MetricGroup": "tma_L1_group", - "MetricName": "SLOTS" + "BriefDescription": "Average external Memory Bandwidth Use for rea= ds and writes [GB / sec]", + "MetricExpr": "64 * (UNC_ARB_TRK_REQUESTS.ALL + UNC_ARB_COH_TRK_RE= QUESTS.ALL) / 1e6 / duration_time / 1e3", + "MetricGroup": "HPC;Mem;MemoryBW;SoC;tma_issueBW", + "MetricName": "tma_info_dram_bw_use", + "PublicDescription": "Average external Memory Bandwidth Use for re= ads and writes [GB / sec]. Related metrics: tma_mem_bandwidth" + }, + { + "BriefDescription": "Fraction of Uops delivered by the DSB (aka De= coded ICache; or Uop Cache)", + "MetricExpr": "IDQ.DSB_UOPS / (IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_= UOPS + IDQ.MS_UOPS)", + "MetricGroup": "DSB;Fed;FetchBW;tma_issueFB", + "MetricName": "tma_info_dsb_coverage", + "MetricThreshold": "tma_info_dsb_coverage < 0.7 & tma_info_ipc / 4= > 0.35", + "PublicDescription": "Fraction of Uops delivered by the DSB (aka D= ecoded ICache; or Uop Cache). Related metrics: tma_dsb_switches, tma_fetch_= bandwidth, tma_lcp" }, { "BriefDescription": "The ratio of Executed- by Issued-Uops", "MetricExpr": "UOPS_DISPATCHED.THREAD / UOPS_ISSUED.ANY", "MetricGroup": "Cor;Pipeline", - "MetricName": "Execute_per_Issue", + "MetricName": "tma_info_execute_per_issue", "PublicDescription": "The ratio of Executed- by Issued-Uops. Ratio= > 1 suggests high rate of uop micro-fusions. Ratio < 1 suggest high rate o= f \"execute\" at rename stage." }, - { - "BriefDescription": "Instructions Per Cycle across hyper-threads (= per physical core)", - "MetricExpr": "INST_RETIRED.ANY / CORE_CLKS", - "MetricGroup": "Ret;SMT;tma_L1_group", - "MetricName": "CoreIPC" - }, { "BriefDescription": "Floating Point Operations Per Cycle", - "MetricExpr": "(FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EX= E.SSE_SCALAR_DOUBLE + 2 * FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4 * (FP_COMP_= OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE) + 8 * SIMD_FP_256.PA= CKED_SINGLE) / CORE_CLKS", + "MetricExpr": "(FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EX= E.SSE_SCALAR_DOUBLE + 2 * FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4 * (FP_COMP_= OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE) + 8 * SIMD_FP_256.PA= CKED_SINGLE) / tma_info_core_clks", "MetricGroup": "Flops;Ret", - "MetricName": "FLOPc" + "MetricName": "tma_info_flopc" + }, + { + "BriefDescription": "Giga Floating Point Operations Per Second", + "MetricExpr": "(FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EX= E.SSE_SCALAR_DOUBLE + 2 * FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4 * (FP_COMP_= OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE) + 8 * SIMD_FP_256.PA= CKED_SINGLE) / 1e9 / duration_time", + "MetricGroup": "Cor;Flops;HPC", + "MetricName": "tma_info_gflops", + "PublicDescription": "Giga Floating Point Operations Per Second. A= ggregate across all supported options of: FP precisions, scalar and vector = instructions, vector-width and AMX engine." }, { "BriefDescription": "Instruction-Level-Parallelism (average number= of uops executed when there is execution) per-core", "MetricExpr": "UOPS_DISPATCHED.THREAD / (cpu@UOPS_DISPATCHED.CORE\= \,cmask\\=3D1@ / 2 if #SMT_on else cpu@UOPS_DISPATCHED.CORE\\,cmask\\=3D1@)= ", "MetricGroup": "Backend;Cor;Pipeline;PortsUtil", - "MetricName": "ILP" + "MetricName": "tma_info_ilp" }, { - "BriefDescription": "Core actual clocks when any Logical Processor= is active on the Physical Core", - "MetricExpr": "(CPU_CLK_UNHALTED.THREAD / 2 * (1 + CPU_CLK_UNHALTE= D.ONE_THREAD_ACTIVE / CPU_CLK_UNHALTED.REF_XCLK) if #core_wide < 1 else (CP= U_CLK_UNHALTED.THREAD_ANY / 2 if #SMT_on else CLKS))", - "MetricGroup": "SMT", - "MetricName": "CORE_CLKS" + "BriefDescription": "Total number of retired Instructions", + "MetricExpr": "INST_RETIRED.ANY", + "MetricGroup": "Summary;TmaL1;tma_L1_group", + "MetricName": "tma_info_instructions", + "PublicDescription": "Total number of retired Instructions. Sample= with: INST_RETIRED.PREC_DIST" }, { - "BriefDescription": "Total number of retired Instructions Sample w= ith: INST_RETIRED.PREC_DIST", - "MetricExpr": "INST_RETIRED.ANY", - "MetricGroup": "Summary;tma_L1_group", - "MetricName": "Instructions" + "BriefDescription": "Instructions Per Cycle (per Logical Processor= )", + "MetricExpr": "INST_RETIRED.ANY / tma_info_clks", + "MetricGroup": "Ret;Summary", + "MetricName": "tma_info_ipc" }, { - "BriefDescription": "Average number of Uops retired in cycles wher= e at least one uop has retired.", - "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / cpu@UOPS_RETIRED.RETIRE= _SLOTS\\,cmask\\=3D1@", - "MetricGroup": "Pipeline;Ret", - "MetricName": "Retire" + "BriefDescription": "Instructions per Far Branch ( Far Branches ap= ply upon transition from application to operating system, handling interrup= ts, exceptions) [lower number means higher occurrence rate]", + "MetricExpr": "INST_RETIRED.ANY / BR_INST_RETIRED.FAR_BRANCH:u", + "MetricGroup": "Branches;OS", + "MetricName": "tma_info_ipfarbranch", + "MetricThreshold": "tma_info_ipfarbranch < 1e6" }, { - "BriefDescription": "Fraction of Uops delivered by the DSB (aka De= coded ICache; or Uop Cache)", - "MetricExpr": "IDQ.DSB_UOPS / (IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_= UOPS + IDQ.MS_UOPS)", - "MetricGroup": "DSB;Fed;FetchBW", - "MetricName": "DSB_Coverage" + "BriefDescription": "Cycles Per Instruction for the Operating Syst= em (OS) Kernel mode", + "MetricExpr": "CPU_CLK_UNHALTED.THREAD_P:k / INST_RETIRED.ANY_P:k"= , + "MetricGroup": "OS", + "MetricName": "tma_info_kernel_cpi" }, { - "BriefDescription": "Average CPU Utilization", - "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / TSC", - "MetricGroup": "HPC;Summary", - "MetricName": "CPU_Utilization" + "BriefDescription": "Fraction of cycles spent in the Operating Sys= tem (OS) Kernel mode", + "MetricExpr": "CPU_CLK_UNHALTED.THREAD_P:k / CPU_CLK_UNHALTED.THRE= AD", + "MetricGroup": "OS", + "MetricName": "tma_info_kernel_utilization", + "MetricThreshold": "tma_info_kernel_utilization > 0.05" }, { - "BriefDescription": "Measured Average Frequency for unhalted proce= ssors [GHz]", - "MetricExpr": "Turbo_Utilization * TSC / 1e9 / duration_time", - "MetricGroup": "Power;Summary", - "MetricName": "Average_Frequency" + "BriefDescription": "Average number of parallel requests to extern= al memory", + "MetricExpr": "UNC_ARB_TRK_OCCUPANCY.ALL / UNC_ARB_TRK_OCCUPANCY.C= YCLES_WITH_ANY_REQUEST", + "MetricGroup": "Mem;SoC", + "MetricName": "tma_info_mem_parallel_requests", + "PublicDescription": "Average number of parallel requests to exter= nal memory. Accounts for all requests" }, { - "BriefDescription": "Giga Floating Point Operations Per Second", - "MetricExpr": "(FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EX= E.SSE_SCALAR_DOUBLE + 2 * FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4 * (FP_COMP_= OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE) + 8 * SIMD_FP_256.PA= CKED_SINGLE) / 1e9 / duration_time", - "MetricGroup": "Cor;Flops;HPC", - "MetricName": "GFLOPs", - "PublicDescription": "Giga Floating Point Operations Per Second. A= ggregate across all supported options of: FP precisions, scalar and vector = instructions, vector-width and AMX engine." + "BriefDescription": "Average latency of all requests to external m= emory (in Uncore cycles)", + "MetricExpr": "UNC_ARB_TRK_OCCUPANCY.ALL / UNC_ARB_TRK_REQUESTS.AL= L", + "MetricGroup": "Mem;SoC", + "MetricName": "tma_info_mem_request_latency" }, { - "BriefDescription": "Average Frequency Utilization relative nomina= l frequency", - "MetricExpr": "CLKS / CPU_CLK_UNHALTED.REF_TSC", - "MetricGroup": "Power", - "MetricName": "Turbo_Utilization" + "BriefDescription": "Average number of Uops retired in cycles wher= e at least one uop has retired.", + "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / cpu@UOPS_RETIRED.RETIRE= _SLOTS\\,cmask\\=3D1@", + "MetricGroup": "Pipeline;Ret", + "MetricName": "tma_info_retire" + }, + { + "BriefDescription": "Total issue-pipeline slots (per-Physical Core= till ICL; per-Logical Processor ICL onward)", + "MetricExpr": "4 * tma_info_core_clks", + "MetricGroup": "TmaL1;tma_L1_group", + "MetricName": "tma_info_slots" }, { "BriefDescription": "Fraction of cycles where both hardware Logica= l Processors were active", "MetricExpr": "(1 - CPU_CLK_UNHALTED.ONE_THREAD_ACTIVE / (CPU_CLK_= UNHALTED.REF_XCLK_ANY / 2) if #SMT_on else 0)", "MetricGroup": "SMT", - "MetricName": "SMT_2T_Utilization" + "MetricName": "tma_info_smt_2t_utilization" }, { - "BriefDescription": "Fraction of cycles spent in the Operating Sys= tem (OS) Kernel mode", - "MetricExpr": "CPU_CLK_UNHALTED.THREAD_P:k / CPU_CLK_UNHALTED.THRE= AD", - "MetricGroup": "OS", - "MetricName": "Kernel_Utilization" + "BriefDescription": "Socket actual clocks when any core is active = on that socket", + "MetricExpr": "UNC_CLOCK.SOCKET", + "MetricGroup": "SoC", + "MetricName": "tma_info_socket_clks" }, { - "BriefDescription": "Cycles Per Instruction for the Operating Syst= em (OS) Kernel mode", - "MetricExpr": "CPU_CLK_UNHALTED.THREAD_P:k / INST_RETIRED.ANY_P:k"= , - "MetricGroup": "OS", - "MetricName": "Kernel_CPI" + "BriefDescription": "Average Frequency Utilization relative nomina= l frequency", + "MetricExpr": "tma_info_clks / CPU_CLK_UNHALTED.REF_TSC", + "MetricGroup": "Power", + "MetricName": "tma_info_turbo_utilization" }, { - "BriefDescription": "Average external Memory Bandwidth Use for rea= ds and writes [GB / sec]", - "MetricExpr": "64 * (UNC_ARB_TRK_REQUESTS.ALL + UNC_ARB_COH_TRK_RE= QUESTS.ALL) / 1e6 / duration_time / 1e3", - "MetricGroup": "HPC;Mem;MemoryBW;SoC", - "MetricName": "DRAM_BW_Use" + "BriefDescription": "Uops Per Instruction", + "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY", + "MetricGroup": "Pipeline;Ret;Retire", + "MetricName": "tma_info_uoppi", + "MetricThreshold": "tma_info_uoppi > 1.05" }, { - "BriefDescription": "Average latency of all requests to external m= emory (in Uncore cycles)", - "MetricExpr": "MEM_Parallel_Requests", - "MetricGroup": "Mem;SoC", - "MetricName": "MEM_Request_Latency" + "BriefDescription": "This metric represents fraction of cycles the= CPU was stalled due to Instruction TLB (ITLB) misses", + "MetricExpr": "(12 * ITLB_MISSES.STLB_HIT + ITLB_MISSES.WALK_DURAT= ION) / tma_info_clks", + "MetricGroup": "BigFoot;FetchLat;MemoryTLB;TopdownL3;tma_L3_group;= tma_fetch_latency_group", + "MetricName": "tma_itlb_misses", + "MetricThreshold": "tma_itlb_misses > 0.05 & (tma_fetch_latency > = 0.1 & tma_frontend_bound > 0.15)", + "PublicDescription": "This metric represents fraction of cycles th= e CPU was stalled due to Instruction TLB (ITLB) misses. Sample with: ITLB_M= ISSES.WALK_COMPLETED", + "ScaleUnit": "100%" }, { - "BriefDescription": "Average number of parallel requests to extern= al memory. Accounts for all requests", - "MetricExpr": "UNC_ARB_TRK_OCCUPANCY.ALL / UNC_ARB_TRK_REQUESTS.AL= L", - "MetricGroup": "Mem;SoC", - "MetricName": "MEM_Parallel_Requests" + "BriefDescription": "This metric estimates how often the CPU was s= talled due to loads accesses to L3 cache or contended with a sibling Core", + "MetricConstraint": "NO_GROUP_EVENTS_SMT", + "MetricExpr": "MEM_LOAD_UOPS_RETIRED.LLC_HIT / (MEM_LOAD_UOPS_RETI= RED.LLC_HIT + 7 * MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS) * CYCLE_ACTIVITY.STA= LLS_L2_PENDING / tma_info_clks", + "MetricGroup": "CacheMisses;MemoryBound;TmaL3mem;TopdownL3;tma_L3_= group;tma_memory_bound_group", + "MetricName": "tma_l3_bound", + "MetricThreshold": "tma_l3_bound > 0.05 & (tma_memory_bound > 0.2 = & tma_backend_bound > 0.2)", + "PublicDescription": "This metric estimates how often the CPU was = stalled due to loads accesses to L3 cache or contended with a sibling Core.= Avoiding cache misses (i.e. L2 misses/L3 hits) can improve the latency an= d increase performance. Sample with: MEM_LOAD_UOPS_RETIRED.L3_HIT_PS", + "ScaleUnit": "100%" }, { - "BriefDescription": "Socket actual clocks when any core is active = on that socket", - "MetricExpr": "UNC_CLOCK.SOCKET", - "MetricGroup": "SoC", - "MetricName": "Socket_CLKS" + "BriefDescription": "This metric represents fraction of cycles CPU= was stalled due to Length Changing Prefixes (LCPs)", + "MetricExpr": "ILD_STALL.LCP / tma_info_clks", + "MetricGroup": "FetchLat;TopdownL3;tma_L3_group;tma_fetch_latency_= group;tma_issueFB", + "MetricName": "tma_lcp", + "MetricThreshold": "tma_lcp > 0.05 & (tma_fetch_latency > 0.1 & tm= a_frontend_bound > 0.15)", + "PublicDescription": "This metric represents fraction of cycles CP= U was stalled due to Length Changing Prefixes (LCPs). Using proper compiler= flags or Intel Compiler by default will certainly avoid this. #Link: Optim= ization Guide about LCP BKMs. Related metrics: tma_dsb_switches, tma_fetch_= bandwidth, tma_info_dsb_coverage", + "ScaleUnit": "100%" }, { - "BriefDescription": "Instructions per Far Branch ( Far Branches ap= ply upon transition from application to operating system, handling interrup= ts, exceptions) [lower number means higher occurrence rate]", - "MetricExpr": "INST_RETIRED.ANY / BR_INST_RETIRED.FAR_BRANCH:u", - "MetricGroup": "Branches;OS", - "MetricName": "IpFarBranch" + "BriefDescription": "This metric represents fraction of slots wher= e the CPU was retiring light-weight operations -- instructions that require= no more than one uop (micro-operation)", + "MetricExpr": "tma_retiring - tma_heavy_operations", + "MetricGroup": "Retire;TmaL2;TopdownL2;tma_L2_group;tma_retiring_g= roup", + "MetricName": "tma_light_operations", + "MetricThreshold": "tma_light_operations > 0.6", + "PublicDescription": "This metric represents fraction of slots whe= re the CPU was retiring light-weight operations -- instructions that requir= e no more than one uop (micro-operation). This correlates with total number= of instructions used by the program. A uops-per-instruction (see UopPI met= ric) ratio of 1 or less should be expected for decently optimized software = running on Intel Core/Xeon products. While this often indicates efficient X= 86 instructions were executed; high value does not necessarily mean better = performance cannot be achieved. Sample with: INST_RETIRED.PREC_DIST", + "ScaleUnit": "100%" }, { - "BriefDescription": "Uncore frequency per die [GHZ]", - "MetricExpr": "Socket_CLKS / #num_dies / duration_time / 1e9", - "MetricGroup": "SoC", - "MetricName": "UNCORE_FREQ" + "BriefDescription": "This metric represents fraction of slots the = CPU has wasted due to Machine Clears", + "MetricConstraint": "NO_GROUP_EVENTS", + "MetricExpr": "tma_bad_speculation - tma_branch_mispredicts", + "MetricGroup": "BadSpec;MachineClears;TmaL2;TopdownL2;tma_L2_group= ;tma_bad_speculation_group;tma_issueMC;tma_issueSyncxn", + "MetricName": "tma_machine_clears", + "MetricThreshold": "tma_machine_clears > 0.1 & tma_bad_speculation= > 0.15", + "PublicDescription": "This metric represents fraction of slots the= CPU has wasted due to Machine Clears. These slots are either wasted by uo= ps fetched prior to the clear; or stalls the out-of-order portion of the ma= chine needs to recover its state after the clear. For example; this can hap= pen due to memory ordering Nukes (e.g. Memory Disambiguation) or Self-Modif= ying-Code (SMC) nukes. Sample with: MACHINE_CLEARS.COUNT. Related metrics: = tma_clears_resteers, tma_l1_bound, tma_microcode_sequencer, tma_ms_switches= , tma_remote_cache", + "ScaleUnit": "100%" }, { - "BriefDescription": "C3 residency percent per core", - "MetricExpr": "cstate_core@c3\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C3_Core_Residency", + "BriefDescription": "This metric estimates fraction of cycles wher= e the core's performance was likely hurt due to approaching bandwidth limit= s of external memory (DRAM)", + "MetricExpr": "min(CPU_CLK_UNHALTED.THREAD, cpu@OFFCORE_REQUESTS_O= UTSTANDING.ALL_DATA_RD\\,cmask\\=3D6@) / tma_info_clks", + "MetricGroup": "MemoryBW;Offcore;TopdownL4;tma_L4_group;tma_dram_b= ound_group;tma_issueBW", + "MetricName": "tma_mem_bandwidth", + "MetricThreshold": "tma_mem_bandwidth > 0.2 & (tma_dram_bound > 0.= 1 & (tma_memory_bound > 0.2 & tma_backend_bound > 0.2))", + "PublicDescription": "This metric estimates fraction of cycles whe= re the core's performance was likely hurt due to approaching bandwidth limi= ts of external memory (DRAM). The underlying heuristic assumes that a simi= lar off-core traffic is generated by all IA cores. This metric does not agg= regate non-data-read requests by this logical processor; requests from othe= r IA Logical Processors/Physical Cores/sockets; or other non-IA devices lik= e GPU; hence the maximum external memory bandwidth limits may or may not be= approached when this metric is flagged (see Uncore counters for that). Rel= ated metrics: tma_info_dram_bw_use", "ScaleUnit": "100%" }, { - "BriefDescription": "C6 residency percent per core", - "MetricExpr": "cstate_core@c6\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C6_Core_Residency", + "BriefDescription": "This metric estimates fraction of cycles wher= e the performance was likely hurt due to latency from external memory (DRAM= )", + "MetricExpr": "min(CPU_CLK_UNHALTED.THREAD, OFFCORE_REQUESTS_OUTST= ANDING.CYCLES_WITH_DATA_RD) / tma_info_clks - tma_mem_bandwidth", + "MetricGroup": "MemoryLat;Offcore;TopdownL4;tma_L4_group;tma_dram_= bound_group;tma_issueLat", + "MetricName": "tma_mem_latency", + "MetricThreshold": "tma_mem_latency > 0.1 & (tma_dram_bound > 0.1 = & (tma_memory_bound > 0.2 & tma_backend_bound > 0.2))", + "PublicDescription": "This metric estimates fraction of cycles whe= re the performance was likely hurt due to latency from external memory (DRA= M). This metric does not aggregate requests from other Logical Processors/= Physical Cores/sockets (see Uncore counters for that). Related metrics: ", "ScaleUnit": "100%" }, { - "BriefDescription": "C7 residency percent per core", - "MetricExpr": "cstate_core@c7\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C7_Core_Residency", + "BriefDescription": "This metric represents fraction of slots the = Memory subsystem within the Backend was a bottleneck", + "MetricConstraint": "NO_GROUP_EVENTS", + "MetricExpr": "(min(CPU_CLK_UNHALTED.THREAD, CYCLE_ACTIVITY.STALLS= _L1D_PENDING) + RESOURCE_STALLS.SB) / (min(CPU_CLK_UNHALTED.THREAD, CYCLE_A= CTIVITY.CYCLES_NO_DISPATCH) + cpu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D1@ - (= cpu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D3@ if tma_info_ipc > 1.8 else cpu@UO= PS_DISPATCHED.THREAD\\,cmask\\=3D2@) - (RS_EVENTS.EMPTY_CYCLES if tma_fetch= _latency > 0.1 else 0) + RESOURCE_STALLS.SB) * tma_backend_bound", + "MetricGroup": "Backend;TmaL2;TopdownL2;tma_L2_group;tma_backend_b= ound_group", + "MetricName": "tma_memory_bound", + "MetricThreshold": "tma_memory_bound > 0.2 & tma_backend_bound > 0= .2", + "PublicDescription": "This metric represents fraction of slots the= Memory subsystem within the Backend was a bottleneck. Memory Bound estima= tes fraction of slots where pipeline is likely stalled due to demand load o= r store instructions. This accounts mainly for (1) non-completed in-flight = memory demand loads which coincides with execution units starvation; in add= ition to (2) cases where stores could impose backpressure on the pipeline w= hen many of them get buffered at the same time (less common out of the two)= .", "ScaleUnit": "100%" }, { - "BriefDescription": "C2 residency percent per package", - "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C2_Pkg_Residency", + "BriefDescription": "This metric represents fraction of slots the = CPU was retiring uops fetched by the Microcode Sequencer (MS) unit", + "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / UOPS_ISSUED.ANY * IDQ.M= S_UOPS / tma_info_slots", + "MetricGroup": "MicroSeq;TopdownL3;tma_L3_group;tma_heavy_operatio= ns_group;tma_issueMC;tma_issueMS", + "MetricName": "tma_microcode_sequencer", + "MetricThreshold": "tma_microcode_sequencer > 0.05 & tma_heavy_ope= rations > 0.1", + "PublicDescription": "This metric represents fraction of slots the= CPU was retiring uops fetched by the Microcode Sequencer (MS) unit. The M= S is used for CISC instructions not supported by the default decoders (like= repeat move strings; or CPUID); or by microcode assists used to address so= me operation modes (like in Floating Point assists). These cases can often = be avoided. Sample with: IDQ.MS_UOPS. Related metrics: tma_clears_resteers,= tma_l1_bound, tma_machine_clears, tma_ms_switches", "ScaleUnit": "100%" }, { - "BriefDescription": "C3 residency percent per package", - "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C3_Pkg_Residency", + "BriefDescription": "This metric estimates the fraction of cycles = when the CPU was stalled due to switches of uop delivery to the Microcode S= equencer (MS)", + "MetricExpr": "3 * IDQ.MS_SWITCHES / tma_info_clks", + "MetricGroup": "FetchLat;MicroSeq;TopdownL3;tma_L3_group;tma_fetch= _latency_group;tma_issueMC;tma_issueMS;tma_issueMV;tma_issueSO", + "MetricName": "tma_ms_switches", + "MetricThreshold": "tma_ms_switches > 0.05 & (tma_fetch_latency > = 0.1 & tma_frontend_bound > 0.15)", + "PublicDescription": "This metric estimates the fraction of cycles= when the CPU was stalled due to switches of uop delivery to the Microcode = Sequencer (MS). Commonly used instructions are optimized for delivery by th= e DSB (decoded i-cache) or MITE (legacy instruction decode) pipelines. Cert= ain operations cannot be handled natively by the execution pipeline; and mu= st be performed by microcode (small programs injected into the execution st= ream). Switching to the MS too often can negatively impact performance. The= MS is designated to deliver long uop flows required by CISC instructions l= ike CPUID; or uncommon conditions like Floating Point Assists when dealing = with Denormals. Sample with: IDQ.MS_SWITCHES. Related metrics: tma_clears_r= esteers, tma_l1_bound, tma_machine_clears, tma_microcode_sequencer, tma_mix= ing_vectors, tma_serializing_operation", "ScaleUnit": "100%" }, { - "BriefDescription": "C6 residency percent per package", - "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C6_Pkg_Residency", + "BriefDescription": "This metric estimates fraction of cycles the = CPU performance was potentially limited due to Core computation issues (non= divider-related)", + "MetricConstraint": "NO_GROUP_EVENTS", + "MetricExpr": "(min(CPU_CLK_UNHALTED.THREAD, CYCLE_ACTIVITY.CYCLES= _NO_DISPATCH) + cpu@UOPS_DISPATCHED.THREAD\\,cmask\\=3D1@ - (cpu@UOPS_DISPA= TCHED.THREAD\\,cmask\\=3D3@ if tma_info_ipc > 1.8 else cpu@UOPS_DISPATCHED.= THREAD\\,cmask\\=3D2@) - (RS_EVENTS.EMPTY_CYCLES if tma_fetch_latency > 0.1= else 0) + RESOURCE_STALLS.SB - RESOURCE_STALLS.SB - min(CPU_CLK_UNHALTED.T= HREAD, CYCLE_ACTIVITY.STALLS_L1D_PENDING)) / tma_info_clks", + "MetricGroup": "PortsUtil;TopdownL3;tma_L3_group;tma_core_bound_gr= oup", + "MetricName": "tma_ports_utilization", + "MetricThreshold": "tma_ports_utilization > 0.15 & (tma_core_bound= > 0.1 & tma_backend_bound > 0.2)", + "PublicDescription": "This metric estimates fraction of cycles the= CPU performance was potentially limited due to Core computation issues (no= n divider-related). Two distinct categories can be attributed into this me= tric: (1) heavy data-dependency among contiguous instructions would manifes= t in this metric - such cases are often referred to as low Instruction Leve= l Parallelism (ILP). (2) Contention on some hardware execution unit other t= han Divider. For example; when there are too many multiply operations.", "ScaleUnit": "100%" }, { - "BriefDescription": "C7 residency percent per package", - "MetricExpr": "cstate_pkg@c7\\-residency@ / TSC", - "MetricGroup": "Power", - "MetricName": "C7_Pkg_Residency", + "BriefDescription": "This category represents fraction of slots ut= ilized by useful work i.e. issued uops that eventually get retired", + "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / tma_info_slots", + "MetricGroup": "TmaL1;TopdownL1;tma_L1_group", + "MetricName": "tma_retiring", + "MetricThreshold": "tma_retiring > 0.7 | tma_heavy_operations > 0.= 1", + "PublicDescription": "This category represents fraction of slots u= tilized by useful work i.e. issued uops that eventually get retired. Ideall= y; all pipeline slots would be attributed to the Retiring category. Retiri= ng of 100% would indicate the maximum Pipeline_Width throughput was achieve= d. Maximizing Retiring typically increases the Instructions-per-cycle (see= IPC metric). Note that a high Retiring value does not necessary mean there= is no room for more performance. For example; Heavy-operations or Microco= de Assists are categorized under Retiring. They often indicate suboptimal p= erformance and can often be optimized or avoided. Sample with: UOPS_RETIRED= .RETIRE_SLOTS", + "ScaleUnit": "100%" + }, + { + "BriefDescription": "This metric estimates how often CPU was stall= ed due to RFO store memory accesses; RFO store issue a read-for-ownership = request before the write", + "MetricExpr": "RESOURCE_STALLS.SB / tma_info_clks", + "MetricGroup": "MemoryBound;TmaL3mem;TopdownL3;tma_L3_group;tma_me= mory_bound_group", + "MetricName": "tma_store_bound", + "MetricThreshold": "tma_store_bound > 0.2 & (tma_memory_bound > 0.= 2 & tma_backend_bound > 0.2)", + "PublicDescription": "This metric estimates how often CPU was stal= led due to RFO store memory accesses; RFO store issue a read-for-ownership= request before the write. Even though store accesses do not typically stal= l out-of-order CPUs; there are few cases where stores can lead to actual st= alls. This metric will be flagged should RFO stores be a bottleneck. Sample= with: MEM_UOPS_RETIRED.ALL_STORES_PS", + "ScaleUnit": "100%" + }, + { + "BriefDescription": "This metric serves as an approximation of leg= acy x87 usage", + "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS * FP_COMP_OPS_EXE.X87 / U= OPS_DISPATCHED.THREAD", + "MetricGroup": "Compute;TopdownL4;tma_L4_group;tma_fp_arith_group"= , + "MetricName": "tma_x87_use", + "MetricThreshold": "tma_x87_use > 0.1 & (tma_fp_arith > 0.2 & tma_= light_operations > 0.6)", + "PublicDescription": "This metric serves as an approximation of le= gacy x87 usage. It accounts for instructions beyond X87 FP arithmetic opera= tions; hence may be used as a thermometer to avoid X87 high usage and prefe= rably upgrade to modern ISA. See Tip under Tuning Hint.", "ScaleUnit": "100%" } ] --=20 2.39.2.637.g21b0678d19-goog