xref: /linux/tools/perf/pmu-events/arch/x86/amdzen5/pipeline.json (revision c771600c6af14749609b49565ffb4cac2959710d) 
1*a9fe4ac7SSandipan Das[
2*a9fe4ac7SSandipan Das  {
3*a9fe4ac7SSandipan Das    "MetricName": "total_dispatch_slots",
4*a9fe4ac7SSandipan Das    "BriefDescription": "Total dispatch slots (up to 8 instructions can be dispatched in each cycle).",
5*a9fe4ac7SSandipan Das    "MetricExpr": "8 * ls_not_halted_cyc",
6*a9fe4ac7SSandipan Das    "ScaleUnit": "1slots"
7*a9fe4ac7SSandipan Das  },
8*a9fe4ac7SSandipan Das  {
9*a9fe4ac7SSandipan Das    "MetricName": "frontend_bound",
10*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because the frontend did not supply enough instructions/ops.",
11*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend, total_dispatch_slots)",
12*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL1",
13*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
14*a9fe4ac7SSandipan Das  },
15*a9fe4ac7SSandipan Das  {
16*a9fe4ac7SSandipan Das    "MetricName": "bad_speculation",
17*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatched ops that did not retire.",
18*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(de_src_op_disp.all - ex_ret_ops, total_dispatch_slots)",
19*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL1",
20*a9fe4ac7SSandipan Das    "ScaleUnit": "100%ops"
21*a9fe4ac7SSandipan Das  },
22*a9fe4ac7SSandipan Das  {
23*a9fe4ac7SSandipan Das    "MetricName": "backend_bound",
24*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because of backend stalls.",
25*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.backend_stalls, total_dispatch_slots)",
26*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL1",
27*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
28*a9fe4ac7SSandipan Das  },
29*a9fe4ac7SSandipan Das  {
30*a9fe4ac7SSandipan Das    "MetricName": "smt_contention",
31*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because the other thread was selected.",
32*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.smt_contention, total_dispatch_slots)",
33*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL1",
34*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
35*a9fe4ac7SSandipan Das  },
36*a9fe4ac7SSandipan Das  {
37*a9fe4ac7SSandipan Das    "MetricName": "retiring",
38*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots used by ops that retired.",
39*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(ex_ret_ops, total_dispatch_slots)",
40*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL1",
41*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
42*a9fe4ac7SSandipan Das  },
43*a9fe4ac7SSandipan Das  {
44*a9fe4ac7SSandipan Das    "MetricName": "frontend_bound_by_latency",
45*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because of a latency bottleneck in the frontend (such as instruction cache or TLB misses).",
46*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio((8 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x8@), total_dispatch_slots)",
47*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;frontend_bound_group",
48*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
49*a9fe4ac7SSandipan Das  },
50*a9fe4ac7SSandipan Das  {
51*a9fe4ac7SSandipan Das    "MetricName": "frontend_bound_by_bandwidth",
52*a9fe4ac7SSandipan Das    "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*a9fe4ac7SSandipan Das    "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*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;frontend_bound_group",
55*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
56*a9fe4ac7SSandipan Das  },
57*a9fe4ac7SSandipan Das  {
58*a9fe4ac7SSandipan Das    "MetricName": "bad_speculation_from_mispredicts",
59*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatched ops that were flushed due to branch mispredicts.",
60*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(bad_speculation * ex_ret_brn_misp, ex_ret_brn_misp + bp_redirects.resync)",
61*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;bad_speculation_group",
62*a9fe4ac7SSandipan Das    "ScaleUnit": "100%ops"
63*a9fe4ac7SSandipan Das  },
64*a9fe4ac7SSandipan Das  {
65*a9fe4ac7SSandipan Das    "MetricName": "bad_speculation_from_pipeline_restarts",
66*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatched ops that were flushed due to pipeline restarts (resyncs).",
67*a9fe4ac7SSandipan Das    "MetricExpr": "d_ratio(bad_speculation * bp_redirects.resync, ex_ret_brn_misp + bp_redirects.resync)",
68*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;bad_speculation_group",
69*a9fe4ac7SSandipan Das    "ScaleUnit": "100%ops"
70*a9fe4ac7SSandipan Das  },
71*a9fe4ac7SSandipan Das  {
72*a9fe4ac7SSandipan Das    "MetricName": "backend_bound_by_memory",
73*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls due to the memory subsystem.",
74*a9fe4ac7SSandipan Das    "MetricExpr": "backend_bound * d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete)",
75*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;backend_bound_group",
76*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
77*a9fe4ac7SSandipan Das  },
78*a9fe4ac7SSandipan Das  {
79*a9fe4ac7SSandipan Das    "MetricName": "backend_bound_by_cpu",
80*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls not related to the memory subsystem.",
81*a9fe4ac7SSandipan Das    "MetricExpr": "backend_bound * (1 - d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete))",
82*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;backend_bound_group",
83*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
84*a9fe4ac7SSandipan Das  },
85*a9fe4ac7SSandipan Das  {
86*a9fe4ac7SSandipan Das    "MetricName": "retiring_from_fastpath",
87*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots used by fastpath ops that retired.",
88*a9fe4ac7SSandipan Das    "MetricExpr": "retiring * (1 - d_ratio(ex_ret_ucode_ops, ex_ret_ops))",
89*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;retiring_group",
90*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
91*a9fe4ac7SSandipan Das  },
92*a9fe4ac7SSandipan Das  {
93*a9fe4ac7SSandipan Das    "MetricName": "retiring_from_microcode",
94*a9fe4ac7SSandipan Das    "BriefDescription": "Percentage of dispatch slots used by microcode ops that retired.",
95*a9fe4ac7SSandipan Das    "MetricExpr": "retiring * d_ratio(ex_ret_ucode_ops, ex_ret_ops)",
96*a9fe4ac7SSandipan Das    "MetricGroup": "PipelineL2;retiring_group",
97*a9fe4ac7SSandipan Das    "ScaleUnit": "100%slots"
98*a9fe4ac7SSandipan Das  }
99*a9fe4ac7SSandipan Das]
100