Hello everyone and happy new year! Asciidoctor.js is now running on both JDK 8b19 (build 25.40-b23) and JDK 9b44 (build 1.9.0-ea-b44). We noticed that JDK 9 is considerably slower than JDK 8 Nashorn but at the same time running "basic" Javascript seems faster on JDK 9.
We have a simple Rake task[1] that execute the same examples with the latest JDK 8 and JDK 9: *Result with JDK 8:* Running Nashorn jjs spec/share/basic.js... OK in *909.052 ms* Running Nashorn jjs spec/share/asciidoctor-convert.js... OK in *9335.534 ms* Running Nashorn java BasicJavascriptWithNashorn... OK in *927.053 ms* Running Nashorn java AsciidoctorConvertWithNashorn... OK in *8843.506 ms* So less than a second for basic Javascript and around 10 seconds to convert AsciiDoc source to HTML5. *Result with JDK 9:* Running Nashorn jjs spec/share/basic.js... OK in *860.049 ms* Running Nashorn jjs spec/share/asciidoctor-convert.js... OK in *31253.788 ms* Running Nashorn java BasicJavascriptWithNashorn... OK in *833.048 ms* Running Nashorn java AsciidoctorConvertWithNashorn... OK in *30584.749 ms* As you can see basic.js runs a little faster but asciidoctor-convert.js is considerably slower (three times slower ~30 seconds). The basic.js[2], asciidoctor-convert.js[3] and asciidoctor-all.js[4] are available on GitHub. Asciidoctor.js is generated from Ruby using Opal[5] as a result the file asciidoctor-all.js is not easy to read but the entry point is the method $convert[6]. Let me know if you need more information. Cheers, Guillaume [1] https://github.com/asciidoctor/asciidoctor.js/blob/master/Rakefile#L105 [2] https://github.com/asciidoctor/asciidoctor.js/blob/master/spec/share/basic.js [3] https://github.com/asciidoctor/asciidoctor.js/blob/master/spec/share/asciidoctor-convert.js [4] https://github.com/asciidoctor/asciidoctor.js/blob/master/dist/asciidoctor-all.js [5] http://opalrb.org/ [6] https://github.com/asciidoctor/asciidoctor.js/blob/master/dist/asciidoctor-all.js#L24419
