100 lines · json
1[2 {3 "MetricName": "total_dispatch_slots",4 "BriefDescription": "Total dispatch slots (up to 8 instructions can be dispatched in each cycle).",5 "MetricExpr": "8 * ls_not_halted_cyc",6 "ScaleUnit": "1slots"7 },8 {9 "MetricName": "frontend_bound",10 "BriefDescription": "Percentage of dispatch slots that remained unused because the frontend did not supply enough instructions/ops.",11 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend, total_dispatch_slots)",12 "MetricGroup": "PipelineL1",13 "ScaleUnit": "100%slots"14 },15 {16 "MetricName": "bad_speculation",17 "BriefDescription": "Percentage of dispatched ops that did not retire.",18 "MetricExpr": "d_ratio(de_src_op_disp.all - ex_ret_ops, total_dispatch_slots)",19 "MetricGroup": "PipelineL1",20 "ScaleUnit": "100%ops"21 },22 {23 "MetricName": "backend_bound",24 "BriefDescription": "Percentage of dispatch slots that remained unused because of backend stalls.",25 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.backend_stalls, total_dispatch_slots)",26 "MetricGroup": "PipelineL1",27 "ScaleUnit": "100%slots"28 },29 {30 "MetricName": "smt_contention",31 "BriefDescription": "Percentage of dispatch slots that remained unused because the other thread was selected.",32 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.smt_contention, total_dispatch_slots)",33 "MetricGroup": "PipelineL1",34 "ScaleUnit": "100%slots"35 },36 {37 "MetricName": "retiring",38 "BriefDescription": "Percentage of dispatch slots used by ops that retired.",39 "MetricExpr": "d_ratio(ex_ret_ops, total_dispatch_slots)",40 "MetricGroup": "PipelineL1",41 "ScaleUnit": "100%slots"42 },43 {44 "MetricName": "frontend_bound_by_latency",45 "BriefDescription": "Percentage of dispatch slots that remained unused because of a latency bottleneck in the frontend (such as instruction cache or TLB misses).",46 "MetricExpr": "d_ratio((8 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x8@), total_dispatch_slots)",47 "MetricGroup": "PipelineL2;frontend_bound_group",48 "ScaleUnit": "100%slots"49 },50 {51 "MetricName": "frontend_bound_by_bandwidth",52 "BriefDescription": "Percentage of dispatch slots that remained unused because of a bandwidth bottleneck in the frontend (such as decode or op cache fetch bandwidth).",53 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend - (8 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x8@), total_dispatch_slots)",54 "MetricGroup": "PipelineL2;frontend_bound_group",55 "ScaleUnit": "100%slots"56 },57 {58 "MetricName": "bad_speculation_from_mispredicts",59 "BriefDescription": "Percentage of dispatched ops that were flushed due to branch mispredicts.",60 "MetricExpr": "d_ratio(bad_speculation * ex_ret_brn_misp, ex_ret_brn_misp + bp_redirects.resync)",61 "MetricGroup": "PipelineL2;bad_speculation_group",62 "ScaleUnit": "100%ops"63 },64 {65 "MetricName": "bad_speculation_from_pipeline_restarts",66 "BriefDescription": "Percentage of dispatched ops that were flushed due to pipeline restarts (resyncs).",67 "MetricExpr": "d_ratio(bad_speculation * bp_redirects.resync, ex_ret_brn_misp + bp_redirects.resync)",68 "MetricGroup": "PipelineL2;bad_speculation_group",69 "ScaleUnit": "100%ops"70 },71 {72 "MetricName": "backend_bound_by_memory",73 "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls due to the memory subsystem.",74 "MetricExpr": "backend_bound * d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete)",75 "MetricGroup": "PipelineL2;backend_bound_group",76 "ScaleUnit": "100%slots"77 },78 {79 "MetricName": "backend_bound_by_cpu",80 "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls not related to the memory subsystem.",81 "MetricExpr": "backend_bound * (1 - d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete))",82 "MetricGroup": "PipelineL2;backend_bound_group",83 "ScaleUnit": "100%slots"84 },85 {86 "MetricName": "retiring_from_fastpath",87 "BriefDescription": "Percentage of dispatch slots used by fastpath ops that retired.",88 "MetricExpr": "retiring * (1 - d_ratio(ex_ret_ucode_ops, ex_ret_ops))",89 "MetricGroup": "PipelineL2;retiring_group",90 "ScaleUnit": "100%slots"91 },92 {93 "MetricName": "retiring_from_microcode",94 "BriefDescription": "Percentage of dispatch slots used by microcode ops that retired.",95 "MetricExpr": "retiring * d_ratio(ex_ret_ucode_ops, ex_ret_ops)",96 "MetricGroup": "PipelineL2;retiring_group",97 "ScaleUnit": "100%slots"98 }99]100