SHORT Instruction cache miss rate/ratio EVENTSET PMC0 INSTRUCTIONS_RETIRED PMC1 ICACHE_FETCHES PMC2 ICACHE_REFILLS_L2 PMC3 ICACHE_REFILLS_MEM METRICS Runtime (RDTSC) [s] time L1I request rate PMC1/PMC0 L1I miss rate (PMC2+PMC3)/PMC0 L1I miss ratio (PMC2+PMC3)/PMC1 LONG Formulas: L1I request rate = ICACHE_FETCHES / INSTRUCTIONS_RETIRED L1I miss rate = (ICACHE_REFILLS_L2+ICACHE_REFILLS_MEM)/INSTRUCTIONS_RETIRED L1I miss ratio = (ICACHE_REFILLS_L2+ICACHE_REFILLS_MEM)/ICACHE_FETCHES - This group measures the locality of your instruction code with regard to the L1 I-Cache.