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A comment on Why Is JRuby Slow?.

Re:Why Is JRuby Slow? by setheron on Friday May 28, 2021 @10:47PM (#27322657)
This piece doesn't have much substance. tl;dr; starting a huge VM takes time.

JRuby and it's active maintainer @headius have been great to work with. Surprisingly a very vibrant and active community.

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Re:Why Is JRuby Slow? by agbell on Friday May 28, 2021 @10:51PM (#27322675)
That seems unfair. Even after warm-up time Jruby and truffleruby are still slower and the truffleRuby folks are investigating it.

I thought looking into why something was slow was worth writing down as a blog post.

https://github.com/agbell/jekyll-perf

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Re:Why Is JRuby Slow? by airhead969 on Friday May 28, 2021 @10:59PM (#27322702)
There are/were imperfect cheats to reduce startup times like nailgun, drip, and spork.

The biggest gotchas in JRuby are finding alternatives to native extensions and memory use. What's neat is plugging into JMX from Ruby land.

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