Tim Bray said at his Ruby Conference keynote speech last week:

Rails is “a big deal, a hot deal”,

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“Let’s face the facts: Ruby is too slow,” Bray told delegates. He says Ruby 1.8.6 – which dominates the enterprise landscape – is up to 20 times slower than Java.

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“When you start to run Rails, you get wildly non-linear performance. Rails has worked well on Ruby 1.8.6… everything else is a work in progress. It’s weird and it’s hard to understand,” Bray said.

…at the end, it is about time to market vs. performance.

Read the rest at Why is Ruby on Rails so darn slow? (Reg Developer).

ceo