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Subject[tip:perf/core] perf vendor events power8: Branch_prediction, latency, bus_stats, instruction_mix & instruction_stats metrics
Commit-ID:  69ba708f4df6250dfa0410297024eeedd7ab3362
Gitweb: https://git.kernel.org/tip/69ba708f4df6250dfa0410297024eeedd7ab3362
Author: Paul Clarke <pc@us.ibm.com>
AuthorDate: Thu, 7 Feb 2019 12:53:13 -0500
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 14 Feb 2019 13:31:09 -0300

perf vendor events power8: Branch_prediction, latency, bus_stats, instruction_mix & instruction_stats metrics

POWER8 metrics are not well publicized. Some are here:

https://www.ibm.com/support/knowledgecenter/en/SSFK5S_2.2.0/com.ibm.cluster.pedev.v2r2.pedev100.doc/bl7ug_derivedmetricspower8.htm

This patch is for metric groups:
- branch_prediction
- latency
- bus_stats
- instruction_mix
- instruction_stats_percent_per_ref

Signed-off-by: Paul Clarke <pc@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Carl Love <cel@us.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20190207175314.31813-4-pc@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
.../pmu-events/arch/powerpc/power8/metrics.json | 492 +++++++++++++++++++++
1 file changed, 492 insertions(+)

diff --git a/tools/perf/pmu-events/arch/powerpc/power8/metrics.json b/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
index 9a6ec8aadffd..d8b710e12377 100644
--- a/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
+++ b/tools/perf/pmu-events/arch/powerpc/power8/metrics.json
@@ -1,4 +1,100 @@
[
+ {
+ "BriefDescription": "% of finished branches that were treated as BC+8",
+ "MetricExpr": "PM_BR_BC_8_CONV / PM_BRU_FIN * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "bc_8_branch_ratio_percent"
+ },
+ {
+ "BriefDescription": "% of finished branches that were pairable but not treated as BC+8",
+ "MetricExpr": "PM_BR_BC_8 / PM_BRU_FIN * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "bc_8_not_converted_branch_ratio_percent"
+ },
+ {
+ "BriefDescription": "Percent of mispredicted branches out of all predicted (correctly and incorrectly) branches that completed",
+ "MetricExpr": "PM_BR_MPRED_CMPL / (PM_BR_PRED_BR0 + PM_BR_PRED_BR1) * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "br_misprediction_percent"
+ },
+ {
+ "BriefDescription": "% of Branch miss predictions per instruction",
+ "MetricExpr": "PM_BR_MPRED_CMPL / PM_RUN_INST_CMPL * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "branch_mispredict_rate_percent"
+ },
+ {
+ "BriefDescription": "Count cache branch misprediction per instruction",
+ "MetricExpr": "PM_BR_MPRED_CCACHE / PM_RUN_INST_CMPL * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "ccache_mispredict_rate_percent"
+ },
+ {
+ "BriefDescription": "Percent of count catch mispredictions out of all completed branches that required count cache predictionn",
+ "MetricExpr": "PM_BR_MPRED_CCACHE / (PM_BR_PRED_CCACHE_BR0 + PM_BR_PRED_CCACHE_BR1) * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "ccache_misprediction_percent"
+ },
+ {
+ "BriefDescription": "CR MisPredictions per Instruction",
+ "MetricExpr": "PM_BR_MPRED_CR / PM_RUN_INST_CMPL * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "cr_mispredict_rate_percent"
+ },
+ {
+ "BriefDescription": "Link stack branch misprediction",
+ "MetricExpr": "(PM_BR_MPRED_TA - PM_BR_MPRED_CCACHE) / PM_RUN_INST_CMPL * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "lstack_mispredict_rate_percent"
+ },
+ {
+ "BriefDescription": "Percent of link stack mispredictions out of all completed branches that required link stack prediction",
+ "MetricExpr": "(PM_BR_MPRED_TA - PM_BR_MPRED_CCACHE) / (PM_BR_PRED_LSTACK_BR0 + PM_BR_PRED_LSTACK_BR1) * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "lstack_misprediction_percent"
+ },
+ {
+ "BriefDescription": "TA MisPredictions per Instruction",
+ "MetricExpr": "PM_BR_MPRED_TA / PM_RUN_INST_CMPL * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "ta_mispredict_rate_percent"
+ },
+ {
+ "BriefDescription": "Percent of target address mispredictions out of all completed branches that required address prediction",
+ "MetricExpr": "PM_BR_MPRED_TA / (PM_BR_PRED_CCACHE_BR0 + PM_BR_PRED_CCACHE_BR1 + PM_BR_PRED_LSTACK_BR0 + PM_BR_PRED_LSTACK_BR1) * 100",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "ta_misprediction_percent"
+ },
+ {
+ "BriefDescription": "Percent of branches completed that were taken",
+ "MetricExpr": "PM_BR_TAKEN_CMPL * 100 / PM_BR_CMPL",
+ "MetricGroup": "branch_prediction",
+ "MetricName": "taken_branches_percent"
+ },
+ {
+ "BriefDescription": "Percent of chip+group+sys pumps that were incorrectly predicted",
+ "MetricExpr": "PM_PUMP_MPRED * 100 / (PM_PUMP_CPRED + PM_PUMP_MPRED)",
+ "MetricGroup": "bus_stats",
+ "MetricName": "any_pump_mpred_percent"
+ },
+ {
+ "BriefDescription": "Percent of chip pumps that were correctly predicted as chip pumps the first time",
+ "MetricExpr": "PM_CHIP_PUMP_CPRED * 100 / PM_L2_CHIP_PUMP",
+ "MetricGroup": "bus_stats",
+ "MetricName": "chip_pump_cpred_percent"
+ },
+ {
+ "BriefDescription": "Percent of group pumps that were correctly predicted as group pumps the first time",
+ "MetricExpr": "PM_GRP_PUMP_CPRED * 100 / PM_L2_GROUP_PUMP",
+ "MetricGroup": "bus_stats",
+ "MetricName": "group_pump_cpred_percent"
+ },
+ {
+ "BriefDescription": "Percent of system pumps that were correctly predicted as group pumps the first time",
+ "MetricExpr": "PM_SYS_PUMP_CPRED * 100 / PM_L2_GROUP_PUMP",
+ "MetricGroup": "bus_stats",
+ "MetricName": "sys_pump_cpred_percent"
+ },
{
"BriefDescription": "Cycles stalled due to CRU or BRU operations",
"MetricExpr": "PM_CMPLU_STALL_BRU_CRU / PM_RUN_INST_CMPL",
@@ -842,6 +938,180 @@
"MetricGroup": "instruction_misses_percent_per_inst",
"MetricName": "l1_inst_miss_rate_percent"
},
+ {
+ "BriefDescription": "% Branches per instruction",
+ "MetricExpr": "PM_BRU_FIN / PM_RUN_INST_CMPL",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "branches_per_inst"
+ },
+ {
+ "BriefDescription": "Total Fixed point operations",
+ "MetricExpr": "(PM_FXU0_FIN + PM_FXU1_FIN)/PM_RUN_INST_CMPL",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fixed_per_inst"
+ },
+ {
+ "BriefDescription": "FXU0 balance",
+ "MetricExpr": "PM_FXU0_FIN / (PM_FXU0_FIN + PM_FXU1_FIN)",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu0_balance"
+ },
+ {
+ "BriefDescription": "Fraction of cycles that FXU0 is in use",
+ "MetricExpr": "PM_FXU0_FIN / PM_RUN_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu0_fin"
+ },
+ {
+ "BriefDescription": "FXU0 only Busy",
+ "MetricExpr": "PM_FXU0_BUSY_FXU1_IDLE / PM_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu0_only_busy"
+ },
+ {
+ "BriefDescription": "Fraction of cycles that FXU1 is in use",
+ "MetricExpr": "PM_FXU1_FIN / PM_RUN_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu1_fin"
+ },
+ {
+ "BriefDescription": "FXU1 only Busy",
+ "MetricExpr": "PM_FXU1_BUSY_FXU0_IDLE / PM_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu1_only_busy"
+ },
+ {
+ "BriefDescription": "Both FXU Busy",
+ "MetricExpr": "PM_FXU_BUSY / PM_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu_both_busy"
+ },
+ {
+ "BriefDescription": "Both FXU Idle",
+ "MetricExpr": "PM_FXU_IDLE / PM_CYC",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "fxu_both_idle"
+ },
+ {
+ "BriefDescription": "PCT instruction loads",
+ "MetricExpr": "PM_LD_REF_L1 / PM_RUN_INST_CMPL",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "loads_per_inst"
+ },
+ {
+ "BriefDescription": "PCT instruction stores",
+ "MetricExpr": "PM_ST_FIN / PM_RUN_INST_CMPL",
+ "MetricGroup": "instruction_mix",
+ "MetricName": "stores_per_inst"
+ },
+ {
+ "BriefDescription": "Icache Fetchs per Icache Miss",
+ "MetricExpr": "(PM_L1_ICACHE_MISS - PM_IC_PREF_WRITE) / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "icache_miss_reload"
+ },
+ {
+ "BriefDescription": "% of ICache reloads due to prefetch",
+ "MetricExpr": "PM_IC_PREF_WRITE * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "icache_pref_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Distant L2 or L3 (Modified)",
+ "MetricExpr": "PM_INST_FROM_DL2L3_MOD * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_dl2l3_mod_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Distant L2 or L3 (Shared)",
+ "MetricExpr": "PM_INST_FROM_DL2L3_SHR * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_dl2l3_shr_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Distant L4",
+ "MetricExpr": "PM_INST_FROM_DL4 * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_dl4_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Distant Memory",
+ "MetricExpr": "PM_INST_FROM_DMEM * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_dmem_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Private L2, other core",
+ "MetricExpr": "PM_INST_FROM_L21_MOD * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l21_mod_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Private L2, other core",
+ "MetricExpr": "PM_INST_FROM_L21_SHR * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l21_shr_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from L2",
+ "MetricExpr": "PM_INST_FROM_L2 * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l2_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Private L3, other core",
+ "MetricExpr": "PM_INST_FROM_L31_MOD * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l31_mod_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Private L3, other core",
+ "MetricExpr": "PM_INST_FROM_L31_SHR * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l31_shr_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from L3",
+ "MetricExpr": "PM_INST_FROM_L3 * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_l3_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Local L4",
+ "MetricExpr": "PM_INST_FROM_LL4 * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_ll4_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Local Memory",
+ "MetricExpr": "PM_INST_FROM_LMEM * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_lmem_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Remote L2 or L3 (Modified)",
+ "MetricExpr": "PM_INST_FROM_RL2L3_MOD * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_rl2l3_mod_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Remote L2 or L3 (Shared)",
+ "MetricExpr": "PM_INST_FROM_RL2L3_SHR * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_rl2l3_shr_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Remote L4",
+ "MetricExpr": "PM_INST_FROM_RL4 * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_rl4_percent"
+ },
+ {
+ "BriefDescription": "% of ICache reloads from Remote Memory",
+ "MetricExpr": "PM_INST_FROM_RMEM * 100 / PM_L1_ICACHE_MISS",
+ "MetricGroup": "instruction_stats_percent_per_ref",
+ "MetricName": "inst_from_rmem_percent"
+ },
{
"BriefDescription": "Average number of stores that gather in the store buffer before being sent to an L2 RC machine",
"MetricExpr": "PM_ST_CMPL / (PM_L2_ST / 2)",
@@ -860,6 +1130,228 @@
"MetricGroup": "l2_stats",
"MetricName": "l2_store_miss_ratio_percent"
},
+ {
+ "BriefDescription": "average L1 miss latency using marked events",
+ "MetricExpr": "PM_MRK_LD_MISS_L1_CYC / PM_MRK_LD_MISS_L1",
+ "MetricGroup": "latency",
+ "MetricName": "average_dl1miss_latency"
+ },
+ {
+ "BriefDescription": "Average icache miss latency",
+ "MetricExpr": "(PM_IC_DEMAND_CYC / PM_IC_DEMAND_REQ)",
+ "MetricGroup": "latency",
+ "MetricName": "average_il1_miss_latency"
+ },
+ {
+ "BriefDescription": "average service time for SYNC",
+ "MetricExpr": "PM_LSU_SRQ_SYNC_CYC / PM_LSU_SRQ_SYNC",
+ "MetricGroup": "latency",
+ "MetricName": "average_sync_cyc"
+ },
+ {
+ "BriefDescription": "Cycles LMQ slot0 was active on an average",
+ "MetricExpr": "PM_LSU_LMQ_S0_VALID / PM_LSU_LMQ_S0_ALLOC",
+ "MetricGroup": "latency",
+ "MetricName": "avg_lmq_life_time"
+ },
+ {
+ "BriefDescription": "Average number of cycles LRQ stays active for one load. Slot 0 is VALID ONLY FOR EVEN THREADS",
+ "MetricExpr": "PM_LSU_LRQ_S0_VALID / PM_LSU_LRQ_S0_ALLOC",
+ "MetricGroup": "latency",
+ "MetricName": "avg_lrq_life_time_even"
+ },
+ {
+ "BriefDescription": "Average number of cycles LRQ stays active for one load. Slot 43 is valid ONLY FOR ODD THREADS",
+ "MetricExpr": "PM_LSU_LRQ_S43_VALID / PM_LSU_LRQ_S43_ALLOC",
+ "MetricGroup": "latency",
+ "MetricName": "avg_lrq_life_time_odd"
+ },
+ {
+ "BriefDescription": "Average number of cycles SRQ stays active for one load. Slot 0 is VALID ONLY FOR EVEN THREADS",
+ "MetricExpr": "PM_LSU_SRQ_S0_VALID / PM_LSU_SRQ_S0_ALLOC",
+ "MetricGroup": "latency",
+ "MetricName": "avg_srq_life_time_even"
+ },
+ {
+ "BriefDescription": "Average number of cycles SRQ stays active for one load. Slot 39 is valid ONLY FOR ODD THREADS",
+ "MetricExpr": "PM_LSU_SRQ_S39_VALID / PM_LSU_SRQ_S39_ALLOC",
+ "MetricGroup": "latency",
+ "MetricName": "avg_srq_life_time_odd"
+ },
+ {
+ "BriefDescription": "Marked background kill latency, measured in L2",
+ "MetricExpr": "PM_MRK_FAB_RSP_BKILL_CYC / PM_MRK_FAB_RSP_BKILL",
+ "MetricGroup": "latency",
+ "MetricName": "bkill_latency"
+ },
+ {
+ "BriefDescription": "Marked dclaim latency, measured in L2",
+ "MetricExpr": "PM_MRK_FAB_RSP_DCLAIM_CYC / PM_MRK_FAB_RSP_DCLAIM",
+ "MetricGroup": "latency",
+ "MetricName": "dclaim_latency"
+ },
+ {
+ "BriefDescription": "Marked L2L3 remote Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_DL2L3_MOD_CYC/ PM_MRK_DATA_FROM_DL2L3_MOD",
+ "MetricGroup": "latency",
+ "MetricName": "dl2l3_mod_latency"
+ },
+ {
+ "BriefDescription": "Marked L2L3 distant Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_DL2L3_SHR_CYC/ PM_MRK_DATA_FROM_DL2L3_SHR",
+ "MetricGroup": "latency",
+ "MetricName": "dl2l3_shr_latency"
+ },
+ {
+ "BriefDescription": "Distant L4 average load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_DL4_CYC/ PM_MRK_DATA_FROM_DL4",
+ "MetricGroup": "latency",
+ "MetricName": "dl4_latency"
+ },
+ {
+ "BriefDescription": "Marked Dmem Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_DMEM_CYC/ PM_MRK_DATA_FROM_DMEM",
+ "MetricGroup": "latency",
+ "MetricName": "dmem_latency"
+ },
+ {
+ "BriefDescription": "estimated exposed miss latency for dL1 misses, ie load miss when we were NTC",
+ "MetricExpr": "PM_MRK_LD_MISS_EXPOSED_CYC / PM_MRK_LD_MISS_EXPOSED",
+ "MetricGroup": "latency",
+ "MetricName": "exposed_dl1miss_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from L2.1 in the M state",
+ "MetricExpr": "PM_MRK_DATA_FROM_L21_MOD_CYC/ PM_MRK_DATA_FROM_L21_MOD",
+ "MetricGroup": "latency",
+ "MetricName": "l21_mod_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from L2.1 in the S state",
+ "MetricExpr": "PM_MRK_DATA_FROM_L21_SHR_CYC/ PM_MRK_DATA_FROM_L21_SHR",
+ "MetricGroup": "latency",
+ "MetricName": "l21_shr_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L2 and suffered a conflict at RC machine dispatch time due to load-hit-store",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2_DISP_CONFLICT_LDHITST_CYC/ PM_MRK_DATA_FROM_L2_DISP_CONFLICT_LDHITST",
+ "MetricGroup": "latency",
+ "MetricName": "l2_disp_conflict_ldhitst_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L2 and suffered a conflict at RC machine dispatch time NOT due load-hit-store",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2_DISP_CONFLICT_OTHER_CYC/ PM_MRK_DATA_FROM_L2_DISP_CONFLICT_OTHER",
+ "MetricGroup": "latency",
+ "MetricName": "l2_disp_conflict_other_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L2",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2_CYC/ PM_MRK_DATA_FROM_L2",
+ "MetricGroup": "latency",
+ "MetricName": "l2_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that were satisfied by lines prefetched into the L3. This information is forwarded from the L3",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2_MEPF_CYC/ PM_MRK_DATA_FROM_L2",
+ "MetricGroup": "latency",
+ "MetricName": "l2_mepf_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L2 and suffered no conflicts",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2_NO_CONFLICT_CYC/ PM_MRK_DATA_FROM_L2",
+ "MetricGroup": "latency",
+ "MetricName": "l2_no_conflict_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L3 and beyond",
+ "MetricExpr": "PM_MRK_DATA_FROM_L2MISS_CYC/ PM_MRK_DATA_FROM_L2MISS",
+ "MetricGroup": "latency",
+ "MetricName": "l2miss_latency"
+ },
+ {
+ "BriefDescription": "Marked L31 Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_L31_MOD_CYC/ PM_MRK_DATA_FROM_L31_MOD",
+ "MetricGroup": "latency",
+ "MetricName": "l31_mod_latency"
+ },
+ {
+ "BriefDescription": "Marked L31 Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_L31_SHR_CYC/ PM_MRK_DATA_FROM_L31_SHR",
+ "MetricGroup": "latency",
+ "MetricName": "l31_shr_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L3",
+ "MetricExpr": "PM_MRK_DATA_FROM_L3_CYC/ PM_MRK_DATA_FROM_L3",
+ "MetricGroup": "latency",
+ "MetricName": "l3_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that came from the L3 and suffered no conflicts",
+ "MetricExpr": "PM_MRK_DATA_FROM_L3_NO_CONFLICT_CYC/ PM_MRK_DATA_FROM_L2",
+ "MetricGroup": "latency",
+ "MetricName": "l3_no_conflict_latency"
+ },
+ {
+ "BriefDescription": "Average load latency for all marked demand loads that come from beyond the L3",
+ "MetricExpr": "PM_MRK_DATA_FROM_L3MISS_CYC/ PM_MRK_DATA_FROM_L3MISS",
+ "MetricGroup": "latency",
+ "MetricName": "l3miss_latency"
+ },
+ {
+ "BriefDescription": "Average latency for marked reloads that hit in the L3 on the MEPF state. i.e. lines that were prefetched into the L3",
+ "MetricExpr": "PM_MRK_DATA_FROM_L3_MEPF_CYC/ PM_MRK_DATA_FROM_L3_MEPF",
+ "MetricGroup": "latency",
+ "MetricName": "l3pref_latency"
+ },
+ {
+ "BriefDescription": "Local L4 average load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_LL4_CYC/ PM_MRK_DATA_FROM_LL4",
+ "MetricGroup": "latency",
+ "MetricName": "ll4_latency"
+ },
+ {
+ "BriefDescription": "Marked Lmem Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_LMEM_CYC/ PM_MRK_DATA_FROM_LMEM",
+ "MetricGroup": "latency",
+ "MetricName": "lmem_latency"
+ },
+ {
+ "BriefDescription": "Latency for marked reloads that hit in the L2 or L3 of any other core on a different chip",
+ "MetricExpr": "PM_MRK_DATA_FROM_OFF_CHIP_CACHE_CYC/ PM_MRK_DATA_FROM_OFF_CHIP_CACHE",
+ "MetricGroup": "latency",
+ "MetricName": "off_chip_cache_latency"
+ },
+ {
+ "BriefDescription": "Latency for marked reloads that hit in the L2 or L3 of any other core on the same chip",
+ "MetricExpr": "PM_MRK_DATA_FROM_ON_CHIP_CACHE_CYC/ PM_MRK_DATA_FROM_ON_CHIP_CACHE",
+ "MetricGroup": "latency",
+ "MetricName": "on_chip_cache_latency"
+ },
+ {
+ "BriefDescription": "Marked L2L3 remote Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_RL2L3_MOD_CYC/ PM_MRK_DATA_FROM_RL2L3_MOD",
+ "MetricGroup": "latency",
+ "MetricName": "rl2l3_mod_latency"
+ },
+ {
+ "BriefDescription": "Marked L2L3 remote Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_RL2L3_SHR_CYC/ PM_MRK_DATA_FROM_RL2L3_SHR",
+ "MetricGroup": "latency",
+ "MetricName": "rl2l3_shr_latency"
+ },
+ {
+ "BriefDescription": "Remote L4 average load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_RL4_CYC/ PM_MRK_DATA_FROM_RL4",
+ "MetricGroup": "latency",
+ "MetricName": "rl4_latency"
+ },
+ {
+ "BriefDescription": "Marked Rmem Load latency",
+ "MetricExpr": "PM_MRK_DATA_FROM_RMEM_CYC/ PM_MRK_DATA_FROM_RMEM",
+ "MetricGroup": "latency",
+ "MetricName": "rmem_latency"
+ },
{
"BriefDescription": "ERAT miss reject ratio",
"MetricExpr": "PM_LSU_REJECT_ERAT_MISS * 100 / PM_RUN_INST_CMPL",
\
 
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  Last update: 2019-02-15 10:29    [W:0.086 / U:13.316 seconds]
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