Commonly Used Metrics for Performance Analysis - Power.org

Metrics for Performance Analysis8.3 Event GroupsThese events are listed in Table 8-1. The relevant events are listed alphabetically by name and each rowincludes the name of a PMC group where the event can be found and a short description. The PMC groupcan be used with tools like hpmcount (see Section 4.2.1) to collect several events at once, minimizing thenumber of runs needed to collect a complete set of data. Events can be used with perf (see Section 5.1),oprofile (see Section 5.2) or tprof (see Section 4.3)Two event groups are needed to cover instruction cache events.Table 8-1 L1 instruction cache events with their corresponding event groups and brief descriptionEvent Name Group Name Event DescriptionPM_L1_ICACHE_MISS pm_ic_miss L1 I cache miss countPM_INST_FROM_L2MISS pm_isource6 Instruction fetched missed L2PM_INST_FROM_L3MISS pm_isource6 Instruction fetched missed L3PM_INST_FROM_PREF pm_isource6 Instruction fetched from prefetchPM_RUN_INST_CMPL pm_ic_miss Run_InstructionsCopyright ©2011 IBM Corporation Page 27 of 52