| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAP-5=fUiw8ShMhjFAkORwj7P5EZ0jw+A6v9_0NbRo0Pd3ca-bA@mail.gmail.com>
Date: Wed, 28 Feb 2024 18:01:41 -0800
From: Ian Rogers <irogers@...gle.com>
To: "Wang, Weilin" <weilin.wang@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
"Hunter, Adrian" <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>,
"linux-perf-users@...r.kernel.org" <linux-perf-users@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Taylor, Perry" <perry.taylor@...el.com>,
"Alt, Samantha" <samantha.alt@...el.com>, "Biggers, Caleb" <caleb.biggers@...el.com>
Subject: Re: [RFC PATCH v2 6/6] perf vendor events intel: Add MTL metric json files
On Wed, Feb 28, 2024 at 5:36 PM Wang, Weilin <weilin.wang@...el.com> wrote:
>
>
>
> > -----Original Message-----
> > From: Ian Rogers <irogers@...gle.com>
> > Sent: Wednesday, February 28, 2024 8:50 AM
> > To: Wang, Weilin <weilin.wang@...el.com>
> > Cc: Peter Zijlstra <peterz@...radead.org>; Ingo Molnar <mingo@...hat.com>;
> > Arnaldo Carvalho de Melo <acme@...nel.org>; Alexander Shishkin
> > <alexander.shishkin@...ux.intel.com>; Jiri Olsa <jolsa@...nel.org>; Namhyung
> > Kim <namhyung@...nel.org>; Hunter, Adrian <adrian.hunter@...el.com>;
> > Kan Liang <kan.liang@...ux.intel.com>; linux-perf-users@...r.kernel.org;
> > linux-kernel@...r.kernel.org; Taylor, Perry <perry.taylor@...el.com>; Alt,
> > Samantha <samantha.alt@...el.com>; Biggers, Caleb
> > <caleb.biggers@...el.com>
> > Subject: Re: [RFC PATCH v2 6/6] perf vendor events intel: Add MTL metric json
> > files
> >
> > On Wed, Feb 28, 2024 at 8:12 AM <weilin.wang@...el.com> wrote:
> > >
> > > From: Weilin Wang <weilin.wang@...el.com>
> > >
> > > Add MTL metric json file at TMA4.7 [1]. Some of the metrics' formulas use
> > TPEBS
> > > retire_latency in MTL.
> > >
> > > [1] https://lore.kernel.org/all/20240214011820.644458-1-
> > irogers@...gle.com/
> > >
> > > Signed-off-by: Weilin Wang <weilin.wang@...el.com>
> > > ---
> > > .../arch/x86/meteorlake/metricgroups.json | 127 +
> > > .../arch/x86/meteorlake/mtl-metrics.json | 2531 +++++++++++++++++
> > > 2 files changed, 2658 insertions(+)
> > > create mode 100644 tools/perf/pmu-
> > events/arch/x86/meteorlake/metricgroups.json
> > > create mode 100644 tools/perf/pmu-events/arch/x86/meteorlake/mtl-
> > metrics.json
> > >
> > > diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/metricgroups.json
> > b/tools/perf/pmu-events/arch/x86/meteorlake/metricgroups.json
> > > new file mode 100644
> > > index 000000000000..7a03835f262c
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/x86/meteorlake/metricgroups.json
> > > @@ -0,0 +1,127 @@
> > > +{
> > > + "Backend": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Bad": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "BadSpec": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "BigFootprint": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "BrMispredicts": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Branches": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "C0Wait": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "CacheHits": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "CodeGen": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Compute": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Cor": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "DSB": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "DSBmiss": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "DataSharing": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Fed": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "FetchBW": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "FetchLat": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Flops": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "FpScalar": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "FpVector": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Frontend": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "HPC": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "IcMiss": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "InsType": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "IntVector": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "L2Evicts": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "LSD": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "MachineClears": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Machine_Clears": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Mem": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "MemOffcore": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "MemoryBW": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "MemoryBound": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "MemoryLat": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "MemoryTLB": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Memory_BW": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Memory_Lat": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "MicroSeq": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "OS": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Offcore": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "PGO": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Pipeline": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "PortsUtil": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Power": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Prefetches": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "Ret": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Retire": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "SMT": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Server": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Snoop": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "SoC": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "Summary": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "TmaL1": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "TmaL2": "Grouping from Top-down Microarchitecture Analysis Metrics
> > spreadsheet",
> > > + "TmaL3mem": "Grouping from Top-down Microarchitecture Analysis
> > Metrics spreadsheet",
> > > + "TopdownL1": "Metrics for top-down breakdown at level 1",
> > > + "TopdownL2": "Metrics for top-down breakdown at level 2",
> > > + "TopdownL3": "Metrics for top-down breakdown at level 3",
> > > + "TopdownL4": "Metrics for top-down breakdown at level 4",
> > > + "TopdownL5": "Metrics for top-down breakdown at level 5",
> > > + "TopdownL6": "Metrics for top-down breakdown at level 6",
> > > + "tma_L1_group": "Metrics for top-down breakdown at level 1",
> > > + "tma_L2_group": "Metrics for top-down breakdown at level 2",
> > > + "tma_L3_group": "Metrics for top-down breakdown at level 3",
> > > + "tma_L4_group": "Metrics for top-down breakdown at level 4",
> > > + "tma_L5_group": "Metrics for top-down breakdown at level 5",
> > > + "tma_L6_group": "Metrics for top-down breakdown at level 6",
> > > + "tma_alu_op_utilization_group": "Metrics contributing to
> > tma_alu_op_utilization category",
> > > + "tma_assists_group": "Metrics contributing to tma_assists category",
> > > + "tma_backend_bound_aux_group": "Metrics contributing to
> > tma_backend_bound_aux category",
> > > + "tma_backend_bound_group": "Metrics contributing to
> > tma_backend_bound category",
> > > + "tma_bad_speculation_group": "Metrics contributing to
> > tma_bad_speculation category",
> > > + "tma_base_group": "Metrics contributing to tma_base category",
> > > + "tma_branch_mispredicts_group": "Metrics contributing to
> > tma_branch_mispredicts category",
> > > + "tma_branch_resteers_group": "Metrics contributing to
> > tma_branch_resteers category",
> > > + "tma_core_bound_group": "Metrics contributing to tma_core_bound
> > category",
> > > + "tma_dram_bound_group": "Metrics contributing to tma_dram_bound
> > category",
> > > + "tma_dtlb_load_group": "Metrics contributing to tma_dtlb_load
> > category",
> > > + "tma_dtlb_store_group": "Metrics contributing to tma_dtlb_store
> > category",
> > > + "tma_fetch_bandwidth_group": "Metrics contributing to
> > tma_fetch_bandwidth category",
> > > + "tma_fetch_latency_group": "Metrics contributing to tma_fetch_latency
> > category",
> > > + "tma_fp_arith_group": "Metrics contributing to tma_fp_arith category",
> > > + "tma_fp_vector_group": "Metrics contributing to tma_fp_vector
> > category",
> > > + "tma_frontend_bound_group": "Metrics contributing to
> > tma_frontend_bound category",
> > > + "tma_heavy_operations_group": "Metrics contributing to
> > tma_heavy_operations category",
> > > + "tma_int_operations_group": "Metrics contributing to
> > tma_int_operations category",
> > > + "tma_issue2P": "Metrics related by the issue $issue2P",
> > > + "tma_issueBM": "Metrics related by the issue $issueBM",
> > > + "tma_issueBW": "Metrics related by the issue $issueBW",
> > > + "tma_issueComp": "Metrics related by the issue $issueComp",
> > > + "tma_issueD0": "Metrics related by the issue $issueD0",
> > > + "tma_issueFB": "Metrics related by the issue $issueFB",
> > > + "tma_issueFL": "Metrics related by the issue $issueFL",
> > > + "tma_issueL1": "Metrics related by the issue $issueL1",
> > > + "tma_issueLat": "Metrics related by the issue $issueLat",
> > > + "tma_issueMC": "Metrics related by the issue $issueMC",
> > > + "tma_issueMS": "Metrics related by the issue $issueMS",
> > > + "tma_issueMV": "Metrics related by the issue $issueMV",
> > > + "tma_issueRFO": "Metrics related by the issue $issueRFO",
> > > + "tma_issueSL": "Metrics related by the issue $issueSL",
> > > + "tma_issueSO": "Metrics related by the issue $issueSO",
> > > + "tma_issueSmSt": "Metrics related by the issue $issueSmSt",
> > > + "tma_issueSpSt": "Metrics related by the issue $issueSpSt",
> > > + "tma_issueSyncxn": "Metrics related by the issue $issueSyncxn",
> > > + "tma_issueTLB": "Metrics related by the issue $issueTLB",
> > > + "tma_l1_bound_group": "Metrics contributing to tma_l1_bound
> > category",
> > > + "tma_l3_bound_group": "Metrics contributing to tma_l3_bound
> > category",
> > > + "tma_light_operations_group": "Metrics contributing to
> > tma_light_operations category",
> > > + "tma_load_op_utilization_group": "Metrics contributing to
> > tma_load_op_utilization category",
> > > + "tma_machine_clears_group": "Metrics contributing to
> > tma_machine_clears category",
> > > + "tma_mem_latency_group": "Metrics contributing to tma_mem_latency
> > category",
> > > + "tma_mem_scheduler_group": "Metrics contributing to
> > tma_mem_scheduler category",
> > > + "tma_memory_bound_group": "Metrics contributing to
> > tma_memory_bound category",
> > > + "tma_microcode_sequencer_group": "Metrics contributing to
> > tma_microcode_sequencer category",
> > > + "tma_mite_group": "Metrics contributing to tma_mite category",
> > > + "tma_nuke_group": "Metrics contributing to tma_nuke category",
> > > + "tma_other_light_ops_group": "Metrics contributing to
> > tma_other_light_ops category",
> > > + "tma_ports_utilization_group": "Metrics contributing to
> > tma_ports_utilization category",
> > > + "tma_ports_utilized_0_group": "Metrics contributing to
> > tma_ports_utilized_0 category",
> > > + "tma_ports_utilized_3m_group": "Metrics contributing to
> > tma_ports_utilized_3m category",
> > > + "tma_resource_bound_group": "Metrics contributing to
> > tma_resource_bound category",
> > > + "tma_retiring_group": "Metrics contributing to tma_retiring category",
> > > + "tma_serializing_operation_group": "Metrics contributing to
> > tma_serializing_operation category",
> > > + "tma_store_bound_group": "Metrics contributing to tma_store_bound
> > category",
> > > + "tma_store_op_utilization_group": "Metrics contributing to
> > tma_store_op_utilization category"
> > > +}
> > > diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/mtl-metrics.json
> > b/tools/perf/pmu-events/arch/x86/meteorlake/mtl-metrics.json
> > > new file mode 100644
> > > index 000000000000..12df19538fd6
> > > --- /dev/null
> > > +++ b/tools/perf/pmu-events/arch/x86/meteorlake/mtl-metrics.json
> > > @@ -0,0 +1,2531 @@
> > > +[
> > > + {
> > > + "BriefDescription": "C10 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c10\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C10_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C1 residency percent per core",
> > > + "MetricExpr": "cstate_core@c1\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C1_Core_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C2 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c2\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C2_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C3 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c3\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C3_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C6 residency percent per core",
> > > + "MetricExpr": "cstate_core@c6\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C6_Core_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C6 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c6\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C6_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C7 residency percent per core",
> > > + "MetricExpr": "cstate_core@c7\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C7_Core_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C7 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c7\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C7_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C8 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c8\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C8_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "C9 residency percent per package",
> > > + "MetricExpr": "cstate_pkg@c9\\-residency@ / TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "C9_Pkg_Residency",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of cycles spent in System Management
> > Interrupts.",
> > > + "MetricExpr": "((msr@...rf@ - cycles) / msr@...rf@ if msr@smi@ >
> > 0 else 0)",
> > > + "MetricGroup": "smi",
> > > + "MetricName": "smi_cycles",
> > > + "MetricThreshold": "smi_cycles > 0.1",
> > > + "ScaleUnit": "100%"
> > > + },
> > > + {
> > > + "BriefDescription": "Number of SMI interrupts.",
> > > + "MetricExpr": "msr@smi@",
> > > + "MetricGroup": "smi",
> > > + "MetricName": "smi_num",
> > > + "ScaleUnit": "1SMI#"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to certain allocation restrictions.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BE_BOUND.ALLOC_RESTRICTIONS@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_alloc_restriction",
> > > + "MetricThreshold": "tma_alloc_restriction > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls",
> > > + "MetricExpr": "cpu_atom@...DOWN_BE_BOUND.ALL@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_backend_bound",
> > > + "MetricThreshold": "tma_backend_bound > 0.1",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "PublicDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls. Note that uops must be
> > available for consumption in order for this event to count. If a uop is not
> > available (IQ is empty), this event will not count. The rest of these subevents
> > count backend stalls, in cycles, due to an outstanding request which is
> > memory bound vs core bound. The subevents are not slot based events and
> > therefore can not be precisely added or subtracted from the
> > Backend_Bound_Aux subevents which are slot based.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls",
> > > + "MetricExpr": "tma_backend_bound",
> > > + "MetricGroup": "TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_backend_bound_aux",
> > > + "MetricThreshold": "tma_backend_bound_aux > 0.2",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "PublicDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls. Note that UOPS must be
> > available for consumption in order for this event to count. If a uop is not
> > available (IQ is empty), this event will not count. All of these subevents count
> > backend stalls, in slots, due to a resource limitation. These are not cycle based
> > events and therefore can not be precisely added or subtracted from the
> > Backend_Bound subevents which are cycle based. These subevents are
> > supplementary to Backend_Bound and can be used to analyze results from a
> > resource perspective at allocation.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the total number of issue slots that were
> > not consumed by the backend because allocation is stalled due to a
> > mispredicted jump or a machine clear",
> > > + "MetricExpr": "cpu_atom@...DOWN_BAD_SPECULATION.ALL@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_bad_speculation",
> > > + "MetricThreshold": "tma_bad_speculation > 0.15",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "PublicDescription": "Counts the total number of issue slots that were
> > not consumed by the backend because allocation is stalled due to a
> > mispredicted jump or a machine clear. Only issue slots wasted due to fast
> > nukes such as memory ordering nukes are counted. Other nukes are not
> > accounted for. Counts all issue slots blocked during this recovery window
> > including relevant microcode flows and while uops are not yet available in the
> > instruction queue (IQ). Also includes the issue slots that were consumed by
> > the backend but were thrown away because they were younger than the
> > mispredict or machine clear.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of uops that are not from the
> > microsequencer.",
> > > + "MetricExpr": "(cpu_atom@...DOWN_RETIRING.ALL@ -
> > cpu_atom@...S_RETIRED.MS@) / tma_info_core_slots",
> > > + "MetricGroup": "TopdownL2;tma_L2_group;tma_retiring_group",
> > > + "MetricName": "tma_base",
> > > + "MetricThreshold": "tma_base > 0.6",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to BACLEARS, which occurs when the Branch
> > Target Buffer (BTB) prediction or lack thereof, was corrected by a later branch
> > predictor in the frontend",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.BRANCH_DETECT@
> > / tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_latency_group",
> > > + "MetricName": "tma_branch_detect",
> > > + "MetricThreshold": "tma_branch_detect > 0.05",
> > > + "PublicDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to BACLEARS, which occurs when the Branch
> > Target Buffer (BTB) prediction or lack thereof, was corrected by a later branch
> > predictor in the frontend. Includes BACLEARS due to all branch types including
> > conditional and unconditional jumps, returns, and indirect branches.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to branch mispredicts.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BAD_SPECULATION.MISPREDICT@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_bad_speculation_group",
> > > + "MetricName": "tma_branch_mispredicts",
> > > + "MetricThreshold": "tma_branch_mispredicts > 0.05",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to BTCLEARS, which occurs when the Branch
> > Target Buffer (BTB) predicts a taken branch.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_FE_BOUND.BRANCH_RESTEER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_latency_group",
> > > + "MetricName": "tma_branch_resteer",
> > > + "MetricThreshold": "tma_branch_resteer > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to the microcode sequencer (MS).",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.CISC@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_bandwidth_group",
> > > + "MetricName": "tma_cisc",
> > > + "MetricThreshold": "tma_cisc > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles due to backend
> > bound stalls that are core execution bound and not attributed to outstanding
> > demand load or store stalls.",
> > > + "MetricExpr": "max(0, tma_backend_bound - tma_memory_bound)",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_backend_bound_group",
> > > + "MetricName": "tma_core_bound",
> > > + "MetricThreshold": "tma_core_bound > 0.1",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to decode stalls.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.DECODE@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_bandwidth_group",
> > > + "MetricName": "tma_decode",
> > > + "MetricThreshold": "tma_decode > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of machine clears relative to
> > the number of nuke slots due to memory disambiguation.",
> > > + "MetricExpr": "tma_nuke *
> > (cpu_atom@...HINE_CLEARS.DISAMBIGUATION@ /
> > cpu_atom@...HINE_CLEARS.SLOW@)",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_nuke_group",
> > > + "MetricName": "tma_disambiguation",
> > > + "MetricThreshold": "tma_disambiguation > 0.02",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles the core is stalled due
> > to a demand load miss which hit in DRAM or MMIO (Non-DRAM).",
> > > + "MetricExpr": "cpu_atom@..._BOUND_STALLS_LOAD.LLC_MISS@ /
> > tma_info_core_clks - max((cpu_atom@..._BOUND_STALLS_LOAD.ALL@ -
> > cpu_atom@...HEAD.L1_MISS_AT_RET@) / tma_info_core_clks, 0) *
> > cpu_atom@..._BOUND_STALLS_LOAD.LLC_MISS@ /
> > cpu_atom@..._BOUND_STALLS_LOAD.ALL@",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_dram_bound",
> > > + "MetricThreshold": "tma_dram_bound > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to a machine clear classified as a fast nuke due
> > to memory ordering, memory disambiguation and memory renaming.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BAD_SPECULATION.FASTNUKE@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_machine_clears_group",
> > > + "MetricName": "tma_fast_nuke",
> > > + "MetricThreshold": "tma_fast_nuke > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to frontend bandwidth restrictions due to
> > decode, predecode, cisc, and other limitations.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_FE_BOUND.FRONTEND_BANDWIDTH@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_frontend_bound_group",
> > > + "MetricName": "tma_fetch_bandwidth",
> > > + "MetricThreshold": "tma_fetch_bandwidth > 0.1",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to frontend bandwidth restrictions due to
> > decode, predecode, cisc, and other limitations.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_FE_BOUND.FRONTEND_LATENCY@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_frontend_bound_group",
> > > + "MetricName": "tma_fetch_latency",
> > > + "MetricThreshold": "tma_fetch_latency > 0.15",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of machine clears relative to
> > the number of nuke slots due to FP assists.",
> > > + "MetricExpr": "tma_nuke *
> > (cpu_atom@...HINE_CLEARS.FP_ASSIST@ /
> > cpu_atom@...HINE_CLEARS.SLOW@)",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_nuke_group",
> > > + "MetricName": "tma_fp_assist",
> > > + "MetricThreshold": "tma_fp_assist > 0.02",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of floating point divide
> > operations per uop.",
> > > + "MetricExpr": "cpu_atom@...S_RETIRED.FPDIV@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL3;tma_L3_group;tma_base_group",
> > > + "MetricName": "tma_fpdiv_uops",
> > > + "MetricThreshold": "tma_fpdiv_uops > 0.2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to frontend stalls.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.ALL@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_frontend_bound",
> > > + "MetricThreshold": "tma_frontend_bound > 0.2",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to instruction cache misses.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.ICACHE@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_latency_group",
> > > + "MetricName": "tma_icache_misses",
> > > + "MetricThreshold": "tma_icache_misses > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "",
> > > + "MetricExpr": "cpu_atom@..._CLK_UNHALTED.CORE@",
> > > + "MetricName": "tma_info_core_clks",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "",
> > > + "MetricExpr": "cpu_atom@..._CLK_UNHALTED.CORE_P@",
> > > + "MetricName": "tma_info_core_clks_p",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Cycles Per Instruction",
> > > + "MetricExpr": "tma_info_core_clks / INST_RETIRED.ANY",
> > > + "MetricName": "tma_info_core_cpi",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions Per Cycle",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > tma_info_core_clks",
> > > + "MetricName": "tma_info_core_ipc",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "",
> > > + "MetricExpr": "6 * tma_info_core_clks",
> > > + "MetricName": "tma_info_core_slots",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Uops Per Instruction",
> > > + "MetricExpr": "cpu_atom@...S_RETIRED.ALL@ /
> > INST_RETIRED.ANY",
> > > + "MetricName": "tma_info_core_upi",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percent of instruction miss cost that hit in DRAM",
> > > + "MetricExpr": "100 *
> > cpu_atom@..._BOUND_STALLS_IFETCH.LLC_MISS@ /
> > cpu_atom@..._BOUND_STALLS_IFETCH.ALL@",
> > > + "MetricName": "tma_info_frontend_inst_miss_cost_dramhit_percent",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percent of instruction miss cost that hit in the L2",
> > > + "MetricExpr": "100 *
> > cpu_atom@..._BOUND_STALLS_IFETCH.L2_HIT@ /
> > cpu_atom@..._BOUND_STALLS_IFETCH.ALL@",
> > > + "MetricName": "tma_info_frontend_inst_miss_cost_l2hit_percent",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percent of instruction miss cost that hit in the L3",
> > > + "MetricExpr": "100 *
> > cpu_atom@..._BOUND_STALLS_IFETCH.LLC_HIT@ /
> > cpu_atom@..._BOUND_STALLS_IFETCH.ALL@",
> > > + "MetricName": "tma_info_frontend_inst_miss_cost_l3hit_percent",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Ratio of all branches which mispredict",
> > > + "MetricExpr": "cpu_atom@...MISP_RETIRED.ALL_BRANCHES@ /
> > BR_INST_RETIRED.ALL_BRANCHES",
> > > + "MetricName": "tma_info_inst_mix_branch_mispredict_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Ratio between Mispredicted branches and
> > unknown branches",
> > > + "MetricExpr": "cpu_atom@...MISP_RETIRED.ALL_BRANCHES@ /
> > BACLEARS.ANY",
> > > + "MetricName":
> > "tma_info_inst_mix_branch_mispredict_to_unknown_branch_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of all uops which are FPDiv uops",
> > > + "MetricExpr": "100 * cpu_atom@...S_RETIRED.FPDIV@ /
> > UOPS_RETIRED.ALL",
> > > + "MetricName": "tma_info_inst_mix_fpdiv_uop_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of all uops which are IDiv uops",
> > > + "MetricExpr": "100 * cpu_atom@...S_RETIRED.IDIV@ /
> > UOPS_RETIRED.ALL",
> > > + "MetricName": "tma_info_inst_mix_idiv_uop_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per Branch (lower number means
> > higher occurrence rate)",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_INST_RETIRED.ALL_BRANCHES",
> > > + "MetricName": "tma_info_inst_mix_ipbranch",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instruction per (near) call (lower number means
> > higher occurrence rate)",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_INST_RETIRED.NEAR_CALL",
> > > + "MetricName": "tma_info_inst_mix_ipcall",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per Far Branch",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > (cpu_atom@...INST_RETIRED.FAR_BRANCH@ / 2)",
> > > + "MetricName": "tma_info_inst_mix_ipfarbranch",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per Load",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > MEM_UOPS_RETIRED.ALL_LOADS",
> > > + "MetricName": "tma_info_inst_mix_ipload",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per retired conditional Branch
> > Misprediction where the branch was not taken",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > (cpu_atom@...MISP_RETIRED.COND@ -
> > cpu_atom@...MISP_RETIRED.COND_TAKEN@)",
> > > + "MetricName": "tma_info_inst_mix_ipmisp_cond_ntaken",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per retired conditional Branch
> > Misprediction where the branch was taken",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_MISP_RETIRED.COND_TAKEN",
> > > + "MetricName": "tma_info_inst_mix_ipmisp_cond_taken",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per retired indirect call or jump Branch
> > Misprediction",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_MISP_RETIRED.INDIRECT",
> > > + "MetricName": "tma_info_inst_mix_ipmisp_indirect",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per retired return Branch
> > Misprediction",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_MISP_RETIRED.RETURN",
> > > + "MetricName": "tma_info_inst_mix_ipmisp_ret",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per retired Branch Misprediction",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > BR_MISP_RETIRED.ALL_BRANCHES",
> > > + "MetricName": "tma_info_inst_mix_ipmispredict",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Instructions per Store",
> > > + "MetricExpr": "cpu_atom@...T_RETIRED.ANY@ /
> > MEM_UOPS_RETIRED.ALL_STORES",
> > > + "MetricName": "tma_info_inst_mix_ipstore",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of all uops which are ucode ops",
> > > + "MetricExpr": "100 * cpu_atom@...S_RETIRED.MS@ /
> > UOPS_RETIRED.ALL",
> > > + "MetricName": "tma_info_inst_mix_microcode_uop_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of all uops which are x87 uops",
> > > + "MetricExpr": "100 * cpu_atom@...S_RETIRED.X87@ /
> > UOPS_RETIRED.ALL",
> > > + "MetricName": "tma_info_inst_mix_x87_uop_ratio",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of total non-speculative loads with a
> > address aliasing block",
> > > + "MetricExpr": "100 * cpu_atom@...BLOCKS.ADDRESS_ALIAS@ /
> > MEM_UOPS_RETIRED.ALL_LOADS",
> > > + "MetricName": "tma_info_l1_bound_address_alias_blocks",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of total non-speculative loads that are
> > splits",
> > > + "MetricExpr": "100 *
> > cpu_atom@..._UOPS_RETIRED.SPLIT_LOADS@ /
> > MEM_UOPS_RETIRED.ALL_LOADS",
> > > + "MetricName": "tma_info_l1_bound_load_splits",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Percentage of total non-speculative loads with a
> > store forward or unknown store address block",
> > > + "MetricExpr": "100 * cpu_atom@...BLOCKS.DATA_UNKNOWN@ /
> > MEM_UOPS_RETIRED.ALL_LOADS",
> > > + "MetricName": "tma_info_l1_bound_store_fwd_blocks",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Cycle cost per L2 hit",
> > > + "MetricExpr": "cpu_atom@..._BOUND_STALLS_LOAD.L2_HIT@ /
> > MEM_LOAD_UOPS_RETIRED.L2_HIT",
> > > + "MetricName": "tma_info_memory_cycles_per_demand_load_l2_hit",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Cycle cost per LLC hit",
> > > + "MetricExpr": "cpu_atom@..._BOUND_STALLS_LOAD.LLC_HIT@ /
> > MEM_LOAD_UOPS_RETIRED.L3_HIT",
> > > + "MetricName": "tma_info_memory_cycles_per_demand_load_l3_hit",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "load ops retired per 1000 instruction",
> > > + "MetricExpr": "1e3 * cpu_atom@..._UOPS_RETIRED.ALL_LOADS@ /
> > INST_RETIRED.ANY",
> > > + "MetricName": "tma_info_memory_memloadpki",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Average CPU Utilization",
> > > + "MetricExpr": "cpu_atom@..._CLK_UNHALTED.REF_TSC@ / TSC",
> > > + "MetricName": "tma_info_system_cpu_utilization",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Fraction of cycles spent in Kernel mode",
> > > + "MetricExpr": "cpu_atom@..._CLK_UNHALTED.CORE@k /
> > CPU_CLK_UNHALTED.CORE",
> > > + "MetricGroup": "Summary",
> > > + "MetricName": "tma_info_system_kernel_utilization",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Average Frequency Utilization relative nominal
> > frequency",
> > > + "MetricExpr": "tma_info_core_clks / CPU_CLK_UNHALTED.REF_TSC",
> > > + "MetricGroup": "Power",
> > > + "MetricName": "tma_info_system_turbo_utilization",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to Instruction Table Lookaside Buffer (ITLB)
> > misses.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.ITLB_MISS@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_latency_group",
> > > + "MetricName": "tma_itlb_misses",
> > > + "MetricThreshold": "tma_itlb_misses > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles that the oldest load of
> > the load buffer is stalled at retirement due to a load block.",
> > > + "MetricExpr": "cpu_atom@...HEAD.L1_BOUND_AT_RET@ /
> > tma_info_core_clks",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_l1_bound",
> > > + "MetricThreshold": "tma_l1_bound > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles a core is stalled due to
> > a demand load which hit in the L2 Cache.",
> > > + "MetricExpr": "cpu_atom@..._BOUND_STALLS_LOAD.L2_HIT@ /
> > tma_info_core_clks - max((cpu_atom@..._BOUND_STALLS_LOAD.ALL@ -
> > cpu_atom@...HEAD.L1_MISS_AT_RET@) / tma_info_core_clks, 0) *
> > cpu_atom@..._BOUND_STALLS_LOAD.L2_HIT@ /
> > cpu_atom@..._BOUND_STALLS_LOAD.ALL@",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_l2_bound",
> > > + "MetricThreshold": "tma_l2_bound > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles a core is stalled due to
> > a demand load which hit in the Last Level Cache (LLC) or other core with
> > HITE/F/M.",
> > > + "MetricExpr": "cpu_atom@..._BOUND_STALLS_LOAD.LLC_HIT@ /
> > tma_info_core_clks - max((cpu_atom@..._BOUND_STALLS_LOAD.ALL@ -
> > cpu_atom@...HEAD.L1_MISS_AT_RET@) / tma_info_core_clks, 0) *
> > cpu_atom@..._BOUND_STALLS_LOAD.LLC_HIT@ /
> > cpu_atom@..._BOUND_STALLS_LOAD.ALL@",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_l3_bound",
> > > + "MetricThreshold": "tma_l3_bound > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles, relative to the
> > number of mem_scheduler slots, in which uops are blocked due to load buffer
> > full",
> > > + "MetricExpr": "tma_mem_scheduler *
> > cpu_atom@..._SCHEDULER_BLOCK.LD_BUF@ /
> > MEM_SCHEDULER_BLOCK.ALL",
> > > + "MetricGroup":
> > "TopdownL4;tma_L4_group;tma_mem_scheduler_group",
> > > + "MetricName": "tma_ld_buffer",
> > > + "MetricThreshold": "tma_ld_buffer > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the total number of issue slots that were
> > not consumed by the backend because allocation is stalled due to a machine
> > clear (nuke) of any kind including memory ordering and memory
> > disambiguation.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BAD_SPECULATION.MACHINE_CLEARS@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_bad_speculation_group",
> > > + "MetricName": "tma_machine_clears",
> > > + "MetricThreshold": "tma_machine_clears > 0.05",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to memory reservation stalls in which a
> > scheduler is not able to accept uops.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BE_BOUND.MEM_SCHEDULER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_mem_scheduler",
> > > + "MetricThreshold": "tma_mem_scheduler > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles the core is stalled due
> > to stores or loads.",
> > > + "MetricExpr": "min(tma_backend_bound,
> > cpu_atom@...HEAD.ANY_AT_RET@ / tma_info_core_clks +
> > tma_store_bound)",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_backend_bound_group",
> > > + "MetricName": "tma_memory_bound",
> > > + "MetricThreshold": "tma_memory_bound > 0.2",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of machine clears relative to
> > the number of nuke slots due to memory ordering.",
> > > + "MetricExpr": "tma_nuke *
> > (cpu_atom@...HINE_CLEARS.MEMORY_ORDERING@ /
> > cpu_atom@...HINE_CLEARS.SLOW@)",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_nuke_group",
> > > + "MetricName": "tma_memory_ordering",
> > > + "MetricThreshold": "tma_memory_ordering > 0.02",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of uops that are from the
> > complex flows issued by the micro-sequencer (MS)",
> > > + "MetricExpr": "cpu_atom@...S_RETIRED.MS@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL2;tma_L2_group;tma_retiring_group",
> > > + "MetricName": "tma_ms_uops",
> > > + "MetricThreshold": "tma_ms_uops > 0.05",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "PublicDescription": "Counts the number of uops that are from the
> > complex flows issued by the micro-sequencer (MS). This includes uops from
> > flows due to complex instructions, faults, assists, and inserted flows.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to IEC or FPC RAT stalls, which can be due to
> > FIQ or IEC reservation stalls in which the integer, floating point or SIMD
> > scheduler is not able to accept uops.",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BE_BOUND.NON_MEM_SCHEDULER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_non_mem_scheduler",
> > > + "MetricThreshold": "tma_non_mem_scheduler > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to a machine clear (slow nuke).",
> > > + "MetricExpr": "cpu_atom@...DOWN_BAD_SPECULATION.NUKE@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_machine_clears_group",
> > > + "MetricName": "tma_nuke",
> > > + "MetricThreshold": "tma_nuke > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to other common frontend stalls not
> > categorized.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.OTHER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_bandwidth_group",
> > > + "MetricName": "tma_other_fb",
> > > + "MetricThreshold": "tma_other_fb > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles that the oldest load of
> > the load buffer is stalled at retirement due to a number of other load blocks.",
> > > + "MetricExpr": "cpu_atom@...HEAD.OTHER_AT_RET@ /
> > tma_info_core_clks",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_l1_bound_group",
> > > + "MetricName": "tma_other_l1",
> > > + "MetricThreshold": "tma_other_l1 > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles the core is stalled due
> > to a demand load miss which hits in the L2, LLC, DRAM or MMIO (Non-DRAM)
> > but could not be correctly attributed or cycles in which the load miss is waiting
> > on a request buffer.",
> > > + "MetricExpr": "max(0, tma_memory_bound - (tma_store_bound +
> > tma_l1_bound + tma_l2_bound + tma_l3_bound + tma_dram_bound))",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_other_load_store",
> > > + "MetricThreshold": "tma_other_load_store > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of uops retired excluding ms
> > and fp div uops.",
> > > + "MetricExpr": "(cpu_atom@...DOWN_RETIRING.ALL@ -
> > cpu_atom@...S_RETIRED.MS@ - cpu_atom@...S_RETIRED.FPDIV@) /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL3;tma_L3_group;tma_base_group",
> > > + "MetricName": "tma_other_ret",
> > > + "MetricThreshold": "tma_other_ret > 0.3",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of machine clears relative to
> > the number of nuke slots due to page faults.",
> > > + "MetricExpr": "tma_nuke *
> > (cpu_atom@...HINE_CLEARS.PAGE_FAULT@ /
> > cpu_atom@...HINE_CLEARS.SLOW@)",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_nuke_group",
> > > + "MetricName": "tma_page_fault",
> > > + "MetricThreshold": "tma_page_fault > 0.02",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > delivered by the frontend due to wrong predecodes.",
> > > + "MetricExpr": "cpu_atom@...DOWN_FE_BOUND.PREDECODE@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_fetch_bandwidth_group",
> > > + "MetricName": "tma_predecode",
> > > + "MetricThreshold": "tma_predecode > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to the physical register file unable to accept an
> > entry (marble stalls).",
> > > + "MetricExpr": "cpu_atom@...DOWN_BE_BOUND.REGISTER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_register",
> > > + "MetricThreshold": "tma_register > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to the reorder buffer being full (ROB stalls).",
> > > + "MetricExpr":
> > "cpu_atom@...DOWN_BE_BOUND.REORDER_BUFFER@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_reorder_buffer",
> > > + "MetricThreshold": "tma_reorder_buffer > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls",
> > > + "MetricExpr": "tma_backend_bound",
> > > + "MetricGroup":
> > "TopdownL2;tma_L2_group;tma_backend_bound_aux_group",
> > > + "MetricName": "tma_resource_bound",
> > > + "MetricThreshold": "tma_resource_bound > 0.2",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "PublicDescription": "Counts the total number of issue slots that were
> > not consumed by the backend due to backend stalls. Note that uops must be
> > available for consumption in order for this event to count. If a uop is not
> > available (IQ is empty), this event will not count.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that result in
> > retirement slots.",
> > > + "MetricExpr": "cpu_atom@...DOWN_RETIRING.ALL@ /
> > tma_info_core_slots",
> > > + "MetricGroup": "TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_retiring",
> > > + "MetricThreshold": "tma_retiring > 0.75",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles, relative to the
> > number of mem_scheduler slots, in which uops are blocked due to RSV full
> > relative",
> > > + "MetricExpr": "tma_mem_scheduler *
> > cpu_atom@..._SCHEDULER_BLOCK.RSV@ /
> > MEM_SCHEDULER_BLOCK.ALL",
> > > + "MetricGroup":
> > "TopdownL4;tma_L4_group;tma_mem_scheduler_group",
> > > + "MetricName": "tma_rsv",
> > > + "MetricThreshold": "tma_rsv > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of issue slots that were not
> > consumed by the backend due to scoreboards from the instruction queue
> > (IQ), jump execution unit (JEU), or microcode sequencer (MS).",
> > > + "MetricExpr": "cpu_atom@...DOWN_BE_BOUND.SERIALIZATION@ /
> > tma_info_core_slots",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_resource_bound_group",
> > > + "MetricName": "tma_serialization",
> > > + "MetricThreshold": "tma_serialization > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of machine clears relative to
> > the number of nuke slots due to SMC.",
> > > + "MetricExpr": "tma_nuke * (cpu_atom@...HINE_CLEARS.SMC@ /
> > cpu_atom@...HINE_CLEARS.SLOW@)",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_nuke_group",
> > > + "MetricName": "tma_smc",
> > > + "MetricThreshold": "tma_smc > 0.02",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles, relative to the
> > number of mem_scheduler slots, in which uops are blocked due to store buffer
> > full",
> > > + "MetricExpr": "tma_store_bound",
> > > + "MetricGroup":
> > "TopdownL4;tma_L4_group;tma_mem_scheduler_group",
> > > + "MetricName": "tma_st_buffer",
> > > + "MetricThreshold": "tma_st_buffer > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles that the oldest load of
> > the load buffer is stalled at retirement due to a first level TLB miss.",
> > > + "MetricExpr": "cpu_atom@...HEAD.DTLB_MISS_AT_RET@ /
> > tma_info_core_clks",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_l1_bound_group",
> > > + "MetricName": "tma_stlb_hit",
> > > + "MetricThreshold": "tma_stlb_hit > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles that the oldest load of
> > the load buffer is stalled at retirement due to a second level TLB miss requiring
> > a page walk.",
> > > + "MetricExpr": "cpu_atom@...HEAD.PGWALK_AT_RET@ /
> > tma_info_core_clks",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_l1_bound_group",
> > > + "MetricName": "tma_stlb_miss",
> > > + "MetricThreshold": "tma_stlb_miss > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles the core is stalled due
> > to store buffer full.",
> > > + "MetricExpr": "tma_mem_scheduler *
> > (cpu_atom@..._SCHEDULER_BLOCK.ST_BUF@ /
> > cpu_atom@..._SCHEDULER_BLOCK.ALL@)",
> > > + "MetricGroup":
> > "TopdownL3;tma_L3_group;tma_memory_bound_group",
> > > + "MetricName": "tma_store_bound",
> > > + "MetricThreshold": "tma_store_bound > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Counts the number of cycles that the oldest load of
> > the load buffer is stalled at retirement due to a store forward block.",
> > > + "MetricExpr": "cpu_atom@...HEAD.ST_ADDR_AT_RET@ /
> > tma_info_core_clks",
> > > + "MetricGroup": "TopdownL4;tma_L4_group;tma_l1_bound_group",
> > > + "MetricName": "tma_store_fwd_blk",
> > > + "MetricThreshold": "tma_store_fwd_blk > 0.05",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_atom"
> > > + },
> > > + {
> > > + "BriefDescription": "Uncore frequency per die [GHZ]",
> > > + "MetricExpr": "tma_info_system_socket_clks / #num_dies /
> > duration_time / 1e9",
> > > + "MetricGroup": "SoC",
> > > + "MetricName": "UNCORE_FREQ",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents Core fraction of cycles CPU
> > dispatched uops on execution ports for ALU operations.",
> > > + "MetricExpr": "(cpu_core@...S_DISPATCHED.PORT_0@ +
> > cpu_core@...S_DISPATCHED.PORT_1@ +
> > cpu_core@...S_DISPATCHED.PORT_5_11@ +
> > cpu_core@...S_DISPATCHED.PORT_6@) / (5 * tma_info_core_core_clks)",
> > > + "MetricGroup":
> > "TopdownL5;tma_L5_group;tma_ports_utilized_3m_group",
> > > + "MetricName": "tma_alu_op_utilization",
> > > + "MetricThreshold": "tma_alu_op_utilization > 0.4",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric estimates fraction of slots the CPU
> > retired uops delivered by the Microcode_Sequencer as a result of Assists",
> > > + "MetricExpr": "78 * cpu_core@...ISTS.ANY@ /
> > tma_info_thread_slots",
> > > + "MetricGroup":
> > "TopdownL4;tma_L4_group;tma_microcode_sequencer_group",
> > > + "MetricName": "tma_assists",
> > > + "MetricThreshold": "tma_assists > 0.1 & (tma_microcode_sequencer >
> > 0.05 & tma_heavy_operations > 0.1)",
> > > + "PublicDescription": "This metric estimates fraction of slots the CPU
> > retired uops delivered by the Microcode_Sequencer as a result of Assists.
> > Assists are long sequences of uops that are required in certain corner-cases for
> > operations that cannot be handled natively by the execution pipeline. For
> > example; when working with very small floating point values (so-called
> > Denormals); the FP units are not set up to perform these operations natively.
> > Instead; a sequence of instructions to perform the computation on the
> > Denormals is injected into the pipeline. Since these microcode sequences
> > might be dozens of uops long; Assists can be extremely deleterious to
> > performance and they can be avoided in many cases. Sample with:
> > ASSISTS.ANY",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric estimates fraction of slots the CPU
> > retired uops as a result of handing SSE to AVX* or AVX* to SSE transition
> > Assists.",
> > > + "MetricExpr": "63 * cpu_core@...ISTS.SSE_AVX_MIX@ /
> > tma_info_thread_slots",
> > > + "MetricGroup": "HPC;TopdownL5;tma_L5_group;tma_assists_group",
> > > + "MetricName": "tma_avx_assists",
> > > + "MetricThreshold": "tma_avx_assists > 0.1",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This category represents fraction of slots where no
> > uops are being delivered due to a lack of required resources for accepting new
> > uops in the Backend",
> > > + "MetricExpr": "cpu_core@...down\\-be\\-bound@ /
> > (cpu_core@...down\\-fe\\-bound@ + cpu_core@...down\\-bad\\-spec@
> > + cpu_core@...down\\-retiring@ + cpu_core@...down\\-be\\-bound@) +
> > 0 * tma_info_thread_slots",
> > > + "MetricGroup": "TmaL1;TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_backend_bound",
> > > + "MetricThreshold": "tma_backend_bound > 0.2",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "PublicDescription": "This category represents fraction of slots where
> > no uops are being delivered due to a lack of required resources for accepting
> > new uops in the Backend. Backend is the portion of the processor core where
> > the out-of-order scheduler dispatches ready uops into their respective
> > execution units; and once completed these uops get retired according to
> > program order. For example; stalls due to data-cache misses or stalls due to
> > the divider unit being overloaded are both categorized under Backend Bound.
> > Backend Bound is further divided into two main categories: Memory Bound
> > and Core Bound. Sample with: TOPDOWN.BACKEND_BOUND_SLOTS",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This category represents fraction of slots wasted
> > due to incorrect speculations",
> > > + "MetricExpr": "max(1 - (tma_frontend_bound + tma_backend_bound +
> > tma_retiring), 0)",
> > > + "MetricGroup": "TmaL1;TopdownL1;tma_L1_group",
> > > + "MetricName": "tma_bad_speculation",
> > > + "MetricThreshold": "tma_bad_speculation > 0.15",
> > > + "MetricgroupNoGroup": "TopdownL1",
> > > + "PublicDescription": "This category represents fraction of slots wasted
> > due to incorrect speculations. This include slots used to issue uops that do not
> > eventually get retired and slots for which the issue-pipeline was blocked due to
> > recovery from earlier incorrect speculation. For example; wasted work due to
> > miss-predicted branches are categorized under Bad Speculation category.
> > Incorrect data speculation followed by Memory Ordering Nukes is another
> > example.",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents fraction of slots the CPU has
> > wasted due to Branch Misprediction",
> > > + "MetricExpr": "cpu_core@...down\\-br\\-mispredict@ /
> > (cpu_core@...down\\-fe\\-bound@ + cpu_core@...down\\-bad\\-spec@
> > + cpu_core@...down\\-retiring@ + cpu_core@...down\\-be\\-bound@) +
> > 0 * tma_info_thread_slots",
> > > + "MetricGroup":
> > "BadSpec;BrMispredicts;TmaL2;TopdownL2;tma_L2_group;tma_bad_specula
> > tion_group;tma_issueBM",
> > > + "MetricName": "tma_branch_mispredicts",
> > > + "MetricThreshold": "tma_branch_mispredicts > 0.1 &
> > tma_bad_speculation > 0.15",
> > > + "MetricgroupNoGroup": "TopdownL2",
> > > + "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 when the
> > out-of-order part of the machine needs to recover its state from a speculative
> > path. Sample with: TOPDOWN.BR_MISPREDICT_SLOTS. Related metrics:
> > tma_info_bad_spec_branch_misprediction_cost,
> > tma_info_bottleneck_mispredictions, tma_mispredicts_resteers",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents fraction of cycles the CPU
> > was stalled due to Branch Resteers",
> > > + "MetricExpr": "cpu_core@..._MISC.CLEAR_RESTEER_CYCLES@ /
> > tma_info_thread_clks + tma_unknown_branches",
> > > + "MetricGroup":
> > "FetchLat;TopdownL3;tma_L3_group;tma_fetch_latency_group",
> > > + "MetricName": "tma_branch_resteers",
> > > + "MetricThreshold": "tma_branch_resteers > 0.05 &
> > (tma_fetch_latency > 0.1 & tma_frontend_bound > 0.15)",
> > > + "PublicDescription": "This metric represents fraction of cycles the CPU
> > was stalled due to Branch Resteers. Branch Resteers estimates the Frontend
> > delay in fetching operations from corrected path; following all sorts of miss-
> > predicted branches. For example; branchy code with lots of miss-predictions
> > might get categorized under Branch Resteers. Note the value of this node may
> > overlap with its siblings. Sample with: BR_MISP_RETIRED.ALL_BRANCHES",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents fraction of cycles the CPU
> > was stalled due staying in C0.1 power-performance optimized state (Faster
> > wakeup time; Smaller power savings).",
> > > + "MetricExpr": "cpu_core@..._CLK_UNHALTED.C01@ /
> > tma_info_thread_clks",
> > > + "MetricGroup":
> > "C0Wait;TopdownL4;tma_L4_group;tma_serializing_operation_group",
> > > + "MetricName": "tma_c01_wait",
> > > + "MetricThreshold": "tma_c01_wait > 0.05 &
> > (tma_serializing_operation > 0.1 & (tma_core_bound > 0.1 &
> > tma_backend_bound > 0.2))",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents fraction of cycles the CPU
> > was stalled due staying in C0.2 power-performance optimized state (Slower
> > wakeup time; Larger power savings).",
> > > + "MetricExpr": "cpu_core@..._CLK_UNHALTED.C02@ /
> > tma_info_thread_clks",
> > > + "MetricGroup":
> > "C0Wait;TopdownL4;tma_L4_group;tma_serializing_operation_group",
> > > + "MetricName": "tma_c02_wait",
> > > + "MetricThreshold": "tma_c02_wait > 0.05 &
> > (tma_serializing_operation > 0.1 & (tma_core_bound > 0.1 &
> > tma_backend_bound > 0.2))",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric estimates fraction of cycles the CPU
> > retired uops originated from CISC (complex instruction set computer)
> > instruction",
> > > + "MetricExpr": "max(0, tma_microcode_sequencer - tma_assists)",
> > > + "MetricGroup":
> > "TopdownL4;tma_L4_group;tma_microcode_sequencer_group",
> > > + "MetricName": "tma_cisc",
> > > + "MetricThreshold": "tma_cisc > 0.1 & (tma_microcode_sequencer >
> > 0.05 & tma_heavy_operations > 0.1)",
> > > + "PublicDescription": "This metric estimates fraction of cycles the CPU
> > retired uops originated from CISC (complex instruction set computer)
> > instruction. A CISC instruction has multiple uops that are required to perform
> > the instruction's functionality as in the case of read-modify-write as an
> > example. Since these instructions require multiple uops they may or may not
> > imply sub-optimal use of machine resources. Sample with:
> > FRONTEND_RETIRED.MS_FLOWS",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric represents fraction of cycles the CPU
> > was stalled due to Branch Resteers as a result of Machine Clears",
> > > + "MetricExpr": "(1 - tma_branch_mispredicts / tma_bad_speculation) *
> > cpu_core@..._MISC.CLEAR_RESTEER_CYCLES@ / tma_info_thread_clks",
> > > + "MetricGroup":
> > "BadSpec;MachineClears;TopdownL4;tma_L4_group;tma_branch_resteers_gr
> > oup;tma_issueMC",
> > > + "MetricName": "tma_clears_resteers",
> > > + "MetricThreshold": "tma_clears_resteers > 0.05 &
> > (tma_branch_resteers > 0.05 & (tma_fetch_latency > 0.1 &
> > tma_frontend_bound > 0.15))",
> > > + "PublicDescription": "This metric represents fraction of cycles the CPU
> > was stalled due to Branch Resteers as a result of Machine Clears. Sample with:
> > INT_MISC.CLEAR_RESTEER_CYCLES. Related metrics: tma_l1_bound,
> > tma_machine_clears, tma_microcode_sequencer, tma_ms_switches",
> > > + "ScaleUnit": "100%",
> > > + "Unit": "cpu_core"
> > > + },
> > > + {
> > > + "BriefDescription": "This metric estimates fraction of cycles while the
> > memory subsystem was handling synchronizations due to contested
> > accesses",
> > > + "MetricExpr":
> > "(cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_MISS@ *
> > min(cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_MISS@:retire_latency,
> > 24 * tma_info_system_core_frequency) +
> > cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_FWD@ *
> > min(cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_FWD@:retire_latency, 25
> > * tma_info_system_core_frequency) *
> > (cpu_core@....DEMAND_DATA_RD.L3_HIT.SNOOP_HITM@ /
> > (cpu_core@....DEMAND_DATA_RD.L3_HIT.SNOOP_HITM@ +
> > cpu_core@....DEMAND_DATA_RD.L3_HIT.SNOOP_HIT_WITH_FWD@))) * (1
> > + cpu_core@..._LOAD_RETIRED.FB_HIT@ /
> > cpu_core@..._LOAD_RETIRED.L1_MISS@ / 2) / tma_info_thread_clks",
> >
> > Thanks Weilin! The modifier on an event doesn't usually have the colon
> > when there is a slash. So:
> > cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_FWD@:retire_latency
> > Should be:
> > cpu_core@..._LOAD_L3_HIT_RETIRED.XSNP_FWD@...ire_latency
> Thanks Ian! I will update this accordingly.
>
> > The modifiers also tend to be a single character. The modifier 'R' is
> > unused, so I wonder we can use it here so that we can support these
> > events not just in metrics.
> Do you mean we use 'R' instead of "retire_latency" in all the formulas? I could do this
> Update.
I think 'R' is more consistent with all the other event modifiers, but
I also like that your name is intention revealing. I think as we work
this into a more architecture neutral thing it is likely we'll want
retirement latency to just be like an event, in which case the
modifier could be combined with other modifiers. So
MEM_LOAD_L3_HIT_RETIRED.XSNP_FWD:uR could mean the
MEM_LOAD_L3_HIT_RETIRED.XSNP_FWD event with retirement latency only
sampled in user land. Somebody may have a different preference on
which letter, but R doesn't look unreasonable to me.
Thanks,
Ian
> >
> > Ian
>
Powered by blists - more mailing lists