cc-metric-collector/collectors/likwid/groups/power8/STALLS2.txt
2021-03-25 14:47:10 +01:00

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SHORT Completion stalls (group 2)
EVENTSET
PMC0 PM_CMPLU_STALL
PMC1 PM_CMPLU_STALL_LSU
PMC2 PM_CMPLU_STALL_FLUSH
PMC3 PM_CMPLU_STALL_BRU
PMC4 PM_RUN_INST_CMPL
PMC5 PM_RUN_CYC
METRICS
CPI PMC5/PMC4
Stall cycles PMC0
Stall cycles by load/store unit PMC1
Stall ratio by load/store unit [%] PMC1/PMC0*100.0
Stall cycles by pipeline flush PMC2
Stall ratio by pipeline flush [%] PMC2/PMC0*100.0
Stall cycles by branch unit PMC3
Stall ratio by branch unit [%] PMC3/PMC0*100.0
LONG
Formulas:
CPI = PM_RUN_CYC / PM_RUN_INST_CMPL
Stall cycles = PM_CMPLU_STALL
Stall cycles by load/store unit = PM_CMPLU_STALL_LSU
Stall ratio by load/store unit [%] = PM_CMPLU_STALL_LSU/PM_CMPLU_STALL*100.0
Stall cycles by pipeline flush = PM_CMPLU_STALL_FLUSH
Stall ratio by pipeline flush [%] = PM_CMPLU_STALL_FLUSH/PM_CMPLU_STALL*100.0
Stall cycles by branch unit = PM_CMPLU_STALL_BRU
Stall ratio by branch unit [%] = PM_CMPLU_STALL_BRU/PM_CMPLU_STALL*100.0
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