From: Frederick Cheung <frederick.cheung@...>
Date: 2008-11-01T01:38:41+09:00
Subject: Re: XML builder performance


On 31 Oct 2008, at 13:01, Xin Zheng wrote:

> Hi all,
>
> I have been doing some performance testing, and have noticed it takes
> significantly longer to render a XML output then a HTML one. It made  
> me
> think perhaps there's a faster way of generating XML than using XML
> builder.
>
> I did a quick search and did not find any alternatives, or anyone
> talking about XML builder's performance issues.
>
> Is there anyway of optimizing XML Builder? Or is there a faster
> alternative?

I remember looking at this a while back and it turns out that a  
significant bottleneck is how builder escapes your text (look in the  
builder source for to_xs). It's doing a lot more that it has too  
(although I don't deny that a lot of the time that will be useful).  
There's a gem (fast_xs) which implements that in C and makes that  
bottleneck a lot faster.

Fred