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From: Sandipan Das <sandipan.das@amd.com>
To: <linux-perf-users@vger.kernel.org>, <linux-kernel@vger.kernel.org>
CC: <peterz@infradead.org>, <mingo@redhat.com>, <acme@kernel.org>,
	<namhyung@kernel.org>, <mark.rutland@arm.com>,
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	<irogers@google.com>, <adrian.hunter@intel.com>, <eranian@google.com>,
	<ravi.bangoria@amd.com>, <ananth.narayan@amd.com>, <sandipan.das@amd.com>
Subject: [PATCH v2 3/4] perf vendor events amd: Add Zen 5 metrics
Date: Fri, 3 May 2024 12:46:21 +0530
Message-ID: <ee21ff77d89efa99997d3c2ebeeae22ddb6e7e12.1714717230.git.sandipan.das@amd.com>
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Add metrics taken from Section 1.2 "Performance Measurement" of the
Performance Monitor Counters for AMD Family 1Ah Model 00h-0Fh Processors
document available at the link below.

The recommended metrics are sourced from Table 1 "Guidance for Common
Performance Statistics with Complex Event Selects".

The pipeline utilization metrics are sourced from Table 2 "Guidance
for Pipeline Utilization Analysis Statistics". These are useful for
finding performance bottlenecks by analyzing activity at different
stages of the pipeline. There are metric groups available for Level 1
and Level 2 analysis.

Link: https://bugzilla.kernel.org/attachment.cgi?id=305974
Signed-off-by: Sandipan Das <sandipan.das@amd.com>
---
 .../pmu-events/arch/x86/amdzen5/pipeline.json |  99 +++++
 .../arch/x86/amdzen5/recommended.json         | 345 ++++++++++++++++++
 2 files changed, 444 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/x86/amdzen5/pipeline.json
 create mode 100644 tools/perf/pmu-events/arch/x86/amdzen5/recommended.json

diff --git a/tools/perf/pmu-events/arch/x86/amdzen5/pipeline.json b/tools/perf/pmu-events/arch/x86/amdzen5/pipeline.json
new file mode 100644
index 000000000000..d860bf599cf2
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/amdzen5/pipeline.json
@@ -0,0 +1,99 @@
+[
+  {
+    "MetricName": "total_dispatch_slots",
+    "BriefDescription": "Total dispatch slots (up to 8 instructions can be dispatched in each cycle).",
+    "MetricExpr": "8 * ls_not_halted_cyc",
+    "ScaleUnit": "1slots"
+  },
+  {
+    "MetricName": "frontend_bound",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because the frontend did not supply enough instructions/ops.",
+    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.no_ops_from_frontend, total_dispatch_slots)",
+    "MetricGroup": "PipelineL1",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "bad_speculation",
+    "BriefDescription": "Percentage of dispatched ops that did not retire.",
+    "MetricExpr": "d_ratio(de_src_op_disp.all - ex_ret_ops, total_dispatch_slots)",
+    "MetricGroup": "PipelineL1",
+    "ScaleUnit": "100%ops"
+  },
+  {
+    "MetricName": "backend_bound",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because of backend stalls.",
+    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.backend_stalls, total_dispatch_slots)",
+    "MetricGroup": "PipelineL1",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "smt_contention",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because the other thread was selected.",
+    "MetricExpr": "d_ratio(de_no_dispatch_per_slot.smt_contention, total_dispatch_slots)",
+    "MetricGroup": "PipelineL1",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "retiring",
+    "BriefDescription": "Percentage of dispatch slots used by ops that retired.",
+    "MetricExpr": "d_ratio(ex_ret_ops, total_dispatch_slots)",
+    "MetricGroup": "PipelineL1",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "frontend_bound_by_latency",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because of a latency bottleneck in the frontend (such as instruction cache or TLB misses).",
+    "MetricExpr": "d_ratio((8 * cpu@de_no_dispatch_per_slot.no_ops_from_frontend\\,cmask\\=0x8@), total_dispatch_slots)",
+    "MetricGroup": "PipelineL2;frontend_bound_group",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "frontend_bound_by_bandwidth",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because of a bandwidth bottleneck in the frontend (such as decode or op cache fetch bandwidth).",
+    "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)",
+    "MetricGroup": "PipelineL2;frontend_bound_group",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "bad_speculation_from_mispredicts",
+    "BriefDescription": "Percentage of dispatched ops that were flushed due to branch mispredicts.",
+    "MetricExpr": "d_ratio(bad_speculation * ex_ret_brn_misp, ex_ret_brn_misp + bp_redirects.resync)",
+    "MetricGroup": "PipelineL2;bad_speculation_group",
+    "ScaleUnit": "100%ops"
+  },
+  {
+    "MetricName": "bad_speculation_from_pipeline_restarts",
+    "BriefDescription": "Percentage of dispatched ops that were flushed due to pipeline restarts (resyncs).",
+    "MetricExpr": "d_ratio(bad_speculation * bp_redirects.resync, ex_ret_brn_misp + bp_redirects.resync)",
+    "MetricGroup": "PipelineL2;bad_speculation_group",
+    "ScaleUnit": "100%ops"
+  },
+  {
+    "MetricName": "backend_bound_by_memory",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls due to the memory subsystem.",
+    "MetricExpr": "backend_bound * d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete)",
+    "MetricGroup": "PipelineL2;backend_bound_group",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "backend_bound_by_cpu",
+    "BriefDescription": "Percentage of dispatch slots that remained unused because of stalls not related to the memory subsystem.",
+    "MetricExpr": "backend_bound * (1 - d_ratio(ex_no_retire.load_not_complete, ex_no_retire.not_complete))",
+    "MetricGroup": "PipelineL2;backend_bound_group",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "retiring_from_fastpath",
+    "BriefDescription": "Percentage of dispatch slots used by fastpath ops that retired.",
+    "MetricExpr": "retiring * (1 - d_ratio(ex_ret_ucode_ops, ex_ret_ops))",
+    "MetricGroup": "PipelineL2;retiring_group",
+    "ScaleUnit": "100%slots"
+  },
+  {
+    "MetricName": "retiring_from_microcode",
+    "BriefDescription": "Percentage of dispatch slots used by microcode ops that retired.",
+    "MetricExpr": "retiring * d_ratio(ex_ret_ucode_ops, ex_ret_ops)",
+    "MetricGroup": "PipelineL2;retiring_group",
+    "ScaleUnit": "100%slots"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json b/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json
new file mode 100644
index 000000000000..c97874039c1e
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/amdzen5/recommended.json
@@ -0,0 +1,345 @@
+[
+  {
+    "MetricName": "branch_misprediction_rate",
+    "BriefDescription": "Execution-time branch misprediction rate (non-speculative).",
+    "MetricExpr": "d_ratio(ex_ret_brn_misp, ex_ret_brn)",
+    "MetricGroup": "branch_prediction",
+    "ScaleUnit": "1per_branch"
+  },
+  {
+    "MetricName": "all_data_cache_accesses_pti",
+    "BriefDescription": "All data cache accesses per thousand instructions.",
+    "MetricExpr": "ls_dispatch.all / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "all_l2_cache_accesses_pti",
+    "BriefDescription": "All L2 cache accesses per thousand instructions.",
+    "MetricExpr": "(l2_request_g1.all_no_prefetch + l2_pf_hit_l2.l2_hwpf + l2_pf_miss_l2_hit_l3.l2_hwpf + l2_pf_miss_l2_l3.l2_hwpf) / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_accesses_from_l1_ic_misses_pti",
+    "BriefDescription": "L2 cache accesses from L1 instruction cache misses (including prefetch) per thousand instructions.",
+    "MetricExpr": "l2_request_g1.cacheable_ic_read / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_accesses_from_l1_dc_misses_pti",
+    "BriefDescription": "L2 cache accesses from L1 data cache misses (including prefetch) per thousand instructions.",
+    "MetricExpr": "l2_request_g1.all_dc / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_accesses_from_l2_hwpf_pti",
+    "BriefDescription": "L2 cache accesses from L2 cache hardware prefetcher per thousand instructions.",
+    "MetricExpr": "(l2_pf_hit_l2.l1_dc_l2_hwpf + l2_pf_miss_l2_hit_l3.l1_dc_l2_hwpf + l2_pf_miss_l2_l3.l1_dc_l2_hwpf) / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "all_l2_cache_misses_pti",
+    "BriefDescription": "All L2 cache misses per thousand instructions.",
+    "MetricExpr": "(l2_cache_req_stat.ic_dc_miss_in_l2 + l2_pf_miss_l2_hit_l3.l2_hwpf + l2_pf_miss_l2_l3.l2_hwpf) / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_misses_from_l1_ic_miss_pti",
+    "BriefDescription": "L2 cache misses from L1 instruction cache misses per thousand instructions.",
+    "MetricExpr": "l2_cache_req_stat.ic_fill_miss / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_misses_from_l1_dc_miss_pti",
+    "BriefDescription": "L2 cache misses from L1 data cache misses per thousand instructions.",
+    "MetricExpr": "l2_cache_req_stat.ls_rd_blk_c / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_misses_from_l2_hwpf_pti",
+    "BriefDescription": "L2 cache misses from L2 cache hardware prefetcher per thousand instructions.",
+    "MetricExpr": "(l2_pf_miss_l2_hit_l3.l1_dc_l2_hwpf + l2_pf_miss_l2_l3.l1_dc_l2_hwpf) / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "all_l2_cache_hits_pti",
+    "BriefDescription": "All L2 cache hits per thousand instructions.",
+    "MetricExpr": "(l2_cache_req_stat.ic_dc_hit_in_l2 + l2_pf_hit_l2.l2_hwpf) / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_hits_from_l1_ic_miss_pti",
+    "BriefDescription": "L2 cache hits from L1 instruction cache misses per thousand instructions.",
+    "MetricExpr": "l2_cache_req_stat.ic_hit_in_l2 / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_hits_from_l1_dc_miss_pti",
+    "BriefDescription": "L2 cache hits from L1 data cache misses per thousand instructions.",
+    "MetricExpr": "l2_cache_req_stat.dc_hit_in_l2 / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_cache_hits_from_l2_hwpf_pti",
+    "BriefDescription": "L2 cache hits from L2 cache hardware prefetcher per thousand instructions.",
+    "MetricExpr": "l2_pf_hit_l2.l1_dc_l2_hwpf / instructions",
+    "MetricGroup": "l2_cache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l3_cache_accesses",
+    "BriefDescription": "L3 cache accesses.",
+    "MetricExpr": "l3_lookup_state.all_coherent_accesses_to_l3",
+    "MetricGroup": "l3_cache"
+  },
+  {
+    "MetricName": "l3_misses",
+    "BriefDescription": "L3 misses (including cacheline state change requests).",
+    "MetricExpr": "l3_lookup_state.l3_miss",
+    "MetricGroup": "l3_cache"
+  },
+  {
+    "MetricName": "l3_read_miss_latency",
+    "BriefDescription": "Average L3 read miss latency (in core clocks).",
+    "MetricExpr": "(l3_xi_sampled_latency.all * 10) / l3_xi_sampled_latency_requests.all",
+    "MetricGroup": "l3_cache",
+    "ScaleUnit": "1ns"
+  },
+  {
+    "MetricName": "l3_read_miss_latency_for_local_dram",
+    "BriefDescription": "Average L3 read miss latency (in core clocks) for local DRAM.",
+    "MetricExpr": "(l3_xi_sampled_latency.dram_near * 10) / l3_xi_sampled_latency_requests.dram_near",
+    "MetricGroup": "l3_cache",
+    "ScaleUnit": "1ns"
+  },
+  {
+    "MetricName": "l3_read_miss_latency_for_remote_dram",
+    "BriefDescription": "Average L3 read miss latency (in core clocks) for remote DRAM.",
+    "MetricExpr": "(l3_xi_sampled_latency.dram_far * 10) / l3_xi_sampled_latency_requests.dram_far",
+    "MetricGroup": "l3_cache",
+    "ScaleUnit": "1ns"
+  },
+  {
+    "MetricName": "op_cache_fetch_miss_ratio",
+    "BriefDescription": "Op cache miss ratio for all fetches.",
+    "MetricExpr": "d_ratio(op_cache_hit_miss.op_cache_miss, op_cache_hit_miss.all_op_cache_accesses)",
+    "ScaleUnit": "100%"
+  },
+  {
+    "MetricName": "ic_fetch_miss_ratio",
+    "BriefDescription": "Instruction cache miss ratio for all fetches. An instruction cache miss will not be counted by this metric if it is an OC hit.",
+    "MetricExpr": "d_ratio(ic_tag_hit_miss.instruction_cache_miss, ic_tag_hit_miss.all_instruction_cache_accesses)",
+    "ScaleUnit": "100%"
+  },
+  {
+    "MetricName": "l1_data_cache_fills_from_memory_pti",
+    "BriefDescription": "L1 data cache fills from DRAM or MMIO in any NUMA node per thousand instructions.",
+    "MetricExpr": "ls_any_fills_from_sys.dram_io_all / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_data_cache_fills_from_remote_node_pti",
+    "BriefDescription": "L1 data cache fills from a different NUMA node per thousand instructions.",
+    "MetricExpr": "ls_any_fills_from_sys.far_all / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_data_cache_fills_from_same_ccx_pti",
+    "BriefDescription": "L1 data cache fills from within the same CCX per thousand instructions.",
+    "MetricExpr": "ls_any_fills_from_sys.local_all / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_data_cache_fills_from_different_ccx_pti",
+    "BriefDescription": "L1 data cache fills from another CCX cache in any NUMA node per thousand instructions.",
+    "MetricExpr": "ls_any_fills_from_sys.remote_cache / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "all_l1_data_cache_fills_pti",
+    "BriefDescription": "All L1 data cache fills per thousand instructions.",
+    "MetricExpr": "ls_any_fills_from_sys.all / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_local_l2_pti",
+    "BriefDescription": "L1 demand data cache fills from local L2 cache per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.local_l2 / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_same_ccx_pti",
+    "BriefDescription": "L1 demand data cache fills from within the same CCX per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.local_ccx / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_near_cache_pti",
+    "BriefDescription": "L1 demand data cache fills from another CCX cache in the same NUMA node per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.near_cache / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_near_memory_pti",
+    "BriefDescription": "L1 demand data cache fills from DRAM or MMIO in the same NUMA node per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.dram_io_near / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_far_cache_pti",
+    "BriefDescription": "L1 demand data cache fills from another CCX cache in a different NUMA node per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.far_cache / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_demand_data_cache_fills_from_far_memory_pti",
+    "BriefDescription": "L1 demand data cache fills from DRAM or MMIO in a different NUMA node per thousand instructions.",
+    "MetricExpr": "ls_dmnd_fills_from_sys.dram_io_far / instructions",
+    "MetricGroup": "l1_dcache",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_itlb_misses_pti",
+    "BriefDescription": "L1 instruction TLB misses per thousand instructions.",
+    "MetricExpr": "(bp_l1_tlb_miss_l2_tlb_hit + bp_l1_tlb_miss_l2_tlb_miss.all) / instructions",
+    "MetricGroup": "tlb",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_itlb_misses_pti",
+    "BriefDescription": "L2 instruction TLB misses and instruction page walks per thousand instructions.",
+    "MetricExpr": "bp_l1_tlb_miss_l2_tlb_miss.all / instructions",
+    "MetricGroup": "tlb",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l1_dtlb_misses_pti",
+    "BriefDescription": "L1 data TLB misses per thousand instructions.",
+    "MetricExpr": "ls_l1_d_tlb_miss.all / instructions",
+    "MetricGroup": "tlb",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "l2_dtlb_misses_pti",
+    "BriefDescription": "L2 data TLB misses and data page walks per thousand instructions.",
+    "MetricExpr": "ls_l1_d_tlb_miss.all_l2_miss / instructions",
+    "MetricGroup": "tlb",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "all_tlbs_flushed_pti",
+    "BriefDescription": "All TLBs flushed per thousand instructions.",
+    "MetricExpr": "ls_tlb_flush.all / instructions",
+    "MetricGroup": "tlb",
+    "ScaleUnit": "1e3per_1k_instr"
+  },
+  {
+    "MetricName": "macro_ops_dispatched",
+    "BriefDescription": "Macro-ops dispatched.",
+    "MetricExpr": "de_src_op_disp.all",
+    "MetricGroup": "decoder"
+  },
+  {
+    "MetricName": "sse_avx_stalls",
+    "BriefDescription": "Mixed SSE/AVX stalls.",
+    "MetricExpr": "fp_disp_faults.sse_avx_all"
+  },
+  {
+    "MetricName": "macro_ops_retired",
+    "BriefDescription": "Macro-ops retired.",
+    "MetricExpr": "ex_ret_ops"
+  },
+  {
+    "MetricName": "umc_data_bus_utilization",
+    "BriefDescription": "Memory controller data bus utilization.",
+    "MetricExpr": "d_ratio(umc_data_slot_clks.all / 2, umc_mem_clk)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "100%"
+  },
+  {
+    "MetricName": "umc_cas_cmd_rate",
+    "BriefDescription": "Memory controller CAS command rate.",
+    "MetricExpr": "d_ratio(umc_cas_cmd.all * 1000, umc_mem_clk)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1per_memclk"
+  },
+  {
+    "MetricName": "umc_cas_cmd_read_ratio",
+    "BriefDescription": "Ratio of memory controller CAS commands for reads.",
+    "MetricExpr": "d_ratio(umc_cas_cmd.rd, umc_cas_cmd.all)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "100%"
+  },
+  {
+    "MetricName": "umc_cas_cmd_write_ratio",
+    "BriefDescription": "Ratio of memory controller CAS commands for writes.",
+    "MetricExpr": "d_ratio(umc_cas_cmd.wr, umc_cas_cmd.all)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "100%"
+  },
+  {
+    "MetricName": "umc_mem_read_bandwidth",
+    "BriefDescription": "Estimated memory read bandwidth.",
+    "MetricExpr": "(umc_cas_cmd.rd * 64) / 1e6 / duration_time",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1MB/s"
+  },
+  {
+    "MetricName": "umc_mem_write_bandwidth",
+    "BriefDescription": "Estimated memory write bandwidth.",
+    "MetricExpr": "(umc_cas_cmd.wr * 64) / 1e6 / duration_time",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1MB/s"
+  },
+  {
+    "MetricName": "umc_mem_bandwidth",
+    "BriefDescription": "Estimated combined memory bandwidth.",
+    "MetricExpr": "(umc_cas_cmd.all * 64) / 1e6 / duration_time",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1MB/s"
+  },
+  {
+    "MetricName": "umc_activate_cmd_rate",
+    "BriefDescription": "Memory controller ACTIVATE command rate.",
+    "MetricExpr": "d_ratio(umc_act_cmd.all * 1000, umc_mem_clk)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1per_memclk"
+  },
+  {
+    "MetricName": "umc_precharge_cmd_rate",
+    "BriefDescription": "Memory controller PRECHARGE command rate.",
+    "MetricExpr": "d_ratio(umc_pchg_cmd.all * 1000, umc_mem_clk)",
+    "MetricGroup": "memory_controller",
+    "PerPkg": "1",
+    "ScaleUnit": "1per_memclk"
+  }
+]
-- 
2.34.1