99 lines · json
1[2 {3 "MetricName": "total_dispatch_slots",4 "BriefDescription": "Total dispatch slots (upto 6 instructions can be dispatched in each cycle).",5 "MetricExpr": "6 * ls_not_halted_cyc"6 },7 {8 "MetricName": "frontend_bound",9 "BriefDescription": "Fraction of dispatch slots that remained unused because the frontend did not supply enough instructions/ops.",10 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend, total_dispatch_slots)",11 "MetricGroup": "PipelineL1",12 "ScaleUnit": "100%"13 },14 {15 "MetricName": "bad_speculation",16 "BriefDescription": "Fraction of dispatched ops that did not retire.",17 "MetricExpr": "d_ratio(de_src_op_disp.all - ex_ret_ops, total_dispatch_slots)",18 "MetricGroup": "PipelineL1",19 "ScaleUnit": "100%"20 },21 {22 "MetricName": "backend_bound",23 "BriefDescription": "Fraction of dispatch slots that remained unused because of backend stalls.",24 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.backend_stalls, total_dispatch_slots)",25 "MetricGroup": "PipelineL1",26 "ScaleUnit": "100%"27 },28 {29 "MetricName": "smt_contention",30 "BriefDescription": "Fraction of dispatch slots that remained unused because the other thread was selected.",31 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.smt_contention, total_dispatch_slots)",32 "MetricGroup": "PipelineL1",33 "ScaleUnit": "100%"34 },35 {36 "MetricName": "retiring",37 "BriefDescription": "Fraction of dispatch slots used by ops that retired.",38 "MetricExpr": "d_ratio(ex_ret_ops, total_dispatch_slots)",39 "MetricGroup": "PipelineL1",40 "ScaleUnit": "100%"41 },42 {43 "MetricName": "frontend_bound_latency",44 "BriefDescription": "Fraction of dispatch slots that remained unused because of a latency bottleneck in the frontend (such as instruction cache or TLB misses).",45 "MetricExpr": "d_ratio((6 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x6@), total_dispatch_slots)",46 "MetricGroup": "PipelineL2;frontend_bound_group",47 "ScaleUnit": "100%"48 },49 {50 "MetricName": "frontend_bound_bandwidth",51 "BriefDescription": "Fraction of dispatch slots that remained unused because of a bandwidth bottleneck in the frontend (such as decode or op cache fetch bandwidth).",52 "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend - (6 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x6@), total_dispatch_slots)",53 "MetricGroup": "PipelineL2;frontend_bound_group",54 "ScaleUnit": "100%"55 },56 {57 "MetricName": "bad_speculation_mispredicts",58 "BriefDescription": "Fraction of dispatched ops that were flushed due to branch mispredicts.",59 "MetricExpr": "d_ratio(bad_speculation * ex_ret_brn_misp, ex_ret_brn_misp + resyncs_or_nc_redirects)",60 "MetricGroup": "PipelineL2;bad_speculation_group",61 "ScaleUnit": "100%"62 },63 {64 "MetricName": "bad_speculation_pipeline_restarts",65 "BriefDescription": "Fraction of dispatched ops that were flushed due to pipeline restarts (resyncs).",66 "MetricExpr": "d_ratio(bad_speculation * resyncs_or_nc_redirects, ex_ret_brn_misp + resyncs_or_nc_redirects)",67 "MetricGroup": "PipelineL2;bad_speculation_group",68 "ScaleUnit": "100%"69 },70 {71 "MetricName": "backend_bound_memory",72 "BriefDescription": "Fraction of dispatch slots that remained unused because of stalls due to the memory subsystem.",73 "MetricExpr": "backend_bound * d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete)",74 "MetricGroup": "PipelineL2;backend_bound_group",75 "ScaleUnit": "100%"76 },77 {78 "MetricName": "backend_bound_cpu",79 "BriefDescription": "Fraction of dispatch slots that remained unused because of stalls not related to the memory subsystem.",80 "MetricExpr": "backend_bound * (1 - d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete))",81 "MetricGroup": "PipelineL2;backend_bound_group",82 "ScaleUnit": "100%"83 },84 {85 "MetricName": "retiring_fastpath",86 "BriefDescription": "Fraction of dispatch slots used by fastpath ops that retired.",87 "MetricExpr": "retiring * (1 - d_ratio(ex_ret_ucode_ops, ex_ret_ops))",88 "MetricGroup": "PipelineL2;retiring_group",89 "ScaleUnit": "100%"90 },91 {92 "MetricName": "retiring_microcode",93 "BriefDescription": "Fraction of dispatch slots used by microcode ops that retired.",94 "MetricExpr": "retiring * d_ratio(ex_ret_ucode_ops, ex_ret_ops)",95 "MetricGroup": "PipelineL2;retiring_group",96 "ScaleUnit": "100%"97 }98]99