Benchmarks

Speedup relative to R's stats::loess (higher is better):

Category	R (stats)	Serial	Parallel
Clustered	1×	2.4×	5.2×
Constant Y	1×	2.3×	4.5×
Extreme Outliers	1×	1.9×	3.7×
Financial (500–10K)	1×	2.4×	2.8×
Fraction (0.05–0.67)	1×	2.2×	3.8×
Genomic (1K–50K)	1×	1.3×	2.9×
High Noise	1×	1.0×	2.8×
Iterations (0–10)	1×	1.9×	3.3×
Scale (1K–50K)	1×	1.8×	2.2×
Scientific (500–10K)	1×	1.9×	2.9×

The numbers are the average across a range of scenarios for each category (e.g., Fraction from 0.05 to 0.67).