From: Roger Pack <rogerpack2005@...>
Date: 2009-04-11T15:38:48+09:00
Subject: Re: Python on LLVM

> Very true...we're happy to be posting 10-20% faster Rails numbers over
> MRI these days, especially considering that getting Rails to run faster
> is like chipping away at granite.

No joke.  Rails is a tough one.  AR does things like regenerate the 
query string every single time you run a query (this would be the exact 
OPPOSITE of using stored procedures), and does n^2 searches across the 
before and after filters as you run through a request.  It also 
re-generates sql escaped copies of each column name for all tables used 
for every single query.  That's as far as I went in my profiling before 
mostly giving up on it.

Good luck with your optimizations.  I will admit that it is nice to have 
jruby on the alioth benchmarks since it makes the ruby contingent look 
better :)

-=r
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