cc-metric-collector/collectors/likwid/groups/ivybridgeEP/DIVIDE.txt

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2021-03-25 14:47:10 +01:00
SHORT Divide unit information
EVENTSET
FIXC0 INSTR_RETIRED_ANY
FIXC1 CPU_CLK_UNHALTED_CORE
FIXC2 CPU_CLK_UNHALTED_REF
PMC0 ARITH_NUM_DIV
PMC1 ARITH_FPU_DIV_ACTIVE
METRICS
Runtime (RDTSC) [s] time
Runtime unhalted [s] FIXC1*inverseClock
Clock [MHz] 1.E-06*(FIXC1/FIXC2)/inverseClock
CPI FIXC1/FIXC0
Number of divide ops PMC0
Avg. divide unit usage duration PMC1/PMC0
LONG
Formulas:
Number of divide ops = ARITH_NUM_DIV
Avg. divide unit usage duration = ARITH_FPU_DIV_ACTIVE/ARITH_NUM_DIV
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This performance group measures the average latency of divide operations