From: Kirk Haines <khaines@...>
Date: 2005-12-02T04:48:57+09:00
Subject: Re: Ruby Enterprise App Design Advice

On Thursday 01 December 2005 8:02 am, TeslaOMD wrote:

> I like your idea about the Session server and Drb. I think we'll have
> to get things going and just see how it works. I seem to understand the
> basics of the Drb examples, but I'm wondering if anyone knows how
> performant it really is? I suppose I'll see for myself after a few
> weeks of code. Thanks for the feedback.

I've benchmarked some simple Drb tasks before.  It's not as fast as I'd like, 
but about as fast as I expected.

I don't have any hard numbers because it's been a while since I did it, but it 
seems like when I was playing with accessing a hash held by Drb, I was 
getting about 100 calls per second, running both client and server on the 
same machine.

I have a database connection pool being shared by a number of low usage web 
apps and sites right now via Drb.  It's fast enough that I can't notice a 
speed difference on any of the apps compared to each of them having their own 
private pool, but with the loads you are talking about, I think a single Drb 
session server would be a bottleneck.


Kirk Haines