From: Ryan Davis <ryand-ruby@...>
Date: 2009-03-09T05:56:07+09:00
Subject: [ruby-core:22763] Re: [Bug #1255] += for large strings egrigiously slow


On Mar 8, 2009, at 11:40 , James Lee wrote:

> Issue #1255 has been updated by James Lee.
>
>
> I hadn't considered other references to the string.  Still, you  
> already have to maintain a reference count, so if the number of  
> references before the call to += is 1, it should be okay to do a  
> destructive update, right?

ruby doesn't reference count. that is about the slowest and most error  
prone form of GC there is.