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

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2021-03-25 14:47:10 +01:00
SHORT Divide unit information
EVENTSET
FIXC1 ACTUAL_CPU_CLOCK
FIXC2 MAX_CPU_CLOCK
PMC0 RETIRED_INSTRUCTIONS
PMC1 CPU_CLOCKS_UNHALTED
PMC2 DIV_OP_COUNT
PMC3 DIV_BUSY_CYCLES
METRICS
Runtime (RDTSC) [s] time
Runtime unhalted [s] FIXC1*inverseClock
Clock [MHz] 1.E-06*(FIXC1/FIXC2)/inverseClock
CPI PMC1/PMC0
Number of divide ops PMC2
Avg. divide unit usage duration PMC3/PMC2
LONG
Formulas:
CPI = CPU_CLOCKS_UNHALTED/RETIRED_INSTRUCTIONS
Number of divide ops = DIV_OP_COUNT
Avg. divide unit usage duration = DIV_BUSY_CYCLES/DIV_OP_COUNT
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This performance group measures the average latency of divide operations