Test the build time of various Ruby runtimes.
Each site is an indentical fork of a popular Jekyll theme. Each folder has an rbenv set to a different environment and a test script test.sh which starts up jekyll and then modifies a file 20 times, waiting inbetween.
bundle exec jekyll clean
bundle exec jekyll serve --incremental -H 0.0.0.0 -P 4001 &
If you manually add up the generation time should give an idea of Jekyll performance on various runtimes.
The totals from my macbook are here
| Ruby Version | Total Time for 20 builds |
|---|---|
| 2.7 | 33.7 s |
| 3.0 | 44.1 s |
| JRuby | 50.5 s |
| JRuby --dev | 52.6 s |
| Truffle --jvm | 52.6 s |
| Truffle | 82.0 s |
Truffle Ruby didn't work with Kramdown, so pandoc is used for markdown in this test. You probably need to install it (brew install pandoc) to run these sites.