From: Chuck Remes <cremes.devlist@...>
Date: 2010-11-24T13:43:50+09:00
Subject: Re: Ruby 1.8 vs 1.9

On Nov 23, 2010, at 4:23 PM, Ryan Davis wrote:

> 
> On Nov 23, 2010, at 13:25 , Chuck Remes wrote:
> 
>> I use 1.9.2p0 daily and find it to be extremely stable and fast. I would say the biggest reason to use it is to get a performance boost. Most of your code from 1.8 will "just work."  My code sees a 2-5x speedup on 1.9.2 versus 1.8.7.
> 
> That's really variable and depends on what you're doing.
> 
> All of my text processing code needed reworking, and text processing is (was?) noticeably slower in ruby 1.9 than it is in 1.8.

Definitely true. That's why I was careful to say "My code sees a 2-5x speedup..." because I have seen a few instances where 1.9 is a tad pokier. But clearly 1.9 is the future so sticking with 1.8 seems like a bad long-term bet.

cr