Test package to benchmark Mapbox’s ‘concaveman’ algorithm in both javascipt and C++ versions.
if (!"concavetest" %in% rownames (installed.packages ()))
remotes::install_github("mpadge/concavetest")
library (concavetest)
library (rbenchmark)n <- 1e4
x <- runif (n)
y <- runif (n)
knitr::kable (rbenchmark::benchmark (
c_js (x, y),
c_cpp (x, y),
replications = 100))| test | replications | elapsed | relative | user.self | sys.self | user.child | sys.child | |
|---|---|---|---|---|---|---|---|---|
| 2 | c_cpp(x, y) | 100 | 1.603 | 1.000 | 1.588 | 0.013 | 0 | 0 |
| 1 | c_js(x, y) | 100 | 10.060 | 6.276 | 10.294 | 0.084 | 0 | 0 |
And C++ is loads faster than javascript. The end.