bench

The bench package, a new take in benchmarking for R

Transcript

1. CC by RStudio bench ! September 19th 2018 " bench.r-lib.org Jim Hester CC-BY-4.0 A new take on benchmarking
2. Why benchmark?
3. "premature optimization is the root of all evil." - Donald Knuth
4. "A good programmer… will be wise to look carefully at the critical code; but only a!er that code has been identified." - Donald Knuth
5. "All (tools) should be designed to provide (us) with feedback indicating what parts of (our) programs are costing the most" - Donald Knuth
6. bench::mark()
7. CC by RStudio bench::mark() 1. High precision timers (ns) 2. Memory allocations 3. Number and type of R garbage collections 4. Result equality 5. Adaptive stopping 6. Statistics filter GC effects
8. CC by RStudio bench::mark() 1. Human readable times 2. Human readable memory sizes 3. Full results / timings / GCs in list- cols
9. bench::press()
10. CC by RStudio bench::press()
11. bench::plot()
12. ggplot2::autoplot(results) CC by RStudio
13. CC by RStudio
14. bench.r-lib.org install.packages("bench") jimhester_ jimhester jim.hester@rstudio.com