What is Geometric mean?
The nth root of the product of n values, used to average performance ratios because the comparison does not depend on the reference chosen.
Field: Performance Analysis
Geometric mean in the explanations
With the geometric mean, the ratio between two machines does not depend on the reference, enabling fair comparison.
When combining ratios of speed against a reference machine …Each program's execution time is compared with a reference machine's to obtain a ratio, and the ratios are combined into a single value with a geometric mean.
Which describes a standard benchmark such as SPEC CPU?
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Related terms
Benchmark SPEC CPU CPU time Cycles per instruction (CPI) Flame graph Gustafson's law Harmonic mean Little's law Microbenchmark Parallel efficiency