cc-metric-collector/collectors/likwid/groups/pentiumm/BRANCH.txt

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2021-03-25 14:47:10 +01:00
SHORT Branch prediction miss rate/ratio
EVENTSET
PMC0 BR_INST_EXEC
PMC1 BR_MISSP_EXEC
METRICS
Runtime (RDTSC) [s] time
Branch misprediction ratio PMC1/PMC0
LONG
Formulas:
Branch misprediction ratio = BR_MISSP_EXEC / BR_INST_EXEC
-
The rates state how often on average a branch or a mispredicted branch occurred
per instruction retired in total. The branch misprediction ratio sets directly
into relation what ratio of all branch instruction where mispredicted.