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Re:How to build a search engine with Ruby on Rails by tyingq on Friday September 17, 2021 @08:25AM (#28564614)
Github does make it work, but you can see there's a tradeoff for that. Like in this blog post:

https://github.blog/2020-08-25-upgrading-github-to-ruby-2-7/

You see mentions of 70 second application boot times. Also interesting is the reference that a future upgrade to Ruby 3.x might increase performance by a factor of 3. That would mean they are leaving quite a lot on the table right now.

Basically, yes, they make it scale, but that's not free.

Re:How to build a search engine with Ruby on Rails by kevinmchugh on Friday September 17, 2021 @10:08AM (#28565653)
Ruby 3 being 3x faster is based on a video game emulation benchmark. Rails sites won't see anything like that. The ruby team chose a really specific benchmark to target and it's frustrating that it's not communicated well, leading to understandable misunderstandings.
Re:How to build a search engine with Ruby on Rails by tyingq on Friday September 17, 2021 @11:29AM (#28566615)
Somewhat interesting then, that Github cites the 3x without that context.