From: Randy General <randygeneral@...>
Date: 2009-11-20T18:06:41+09:00
Subject: Re: UDP Proxy

Hi David,
Thanks for responding.

> Question #1: Would port forwarding work for this? It looks like a simple 
> DNAT
> filter on Linux, for example.

It might, but this is more so just to try and code something difficult, 
rather than trying to find the easiest solution to achieve it. I don't 
have any legitimate need for the end result.

> Question #2: If you've got an implementation in C, why do you need one 
> in
> Ruby? If you're wanting to do fancier things in Ruby, would it work to 
> use the
> C version as a library?

Same reason as above, but another problem is that the C version is coded 
exclusively for Windows, and I'd like to achieve this on Linux (trying 
to learn Linux simultaneously).

> There's a few things you're doing that just feel wrong from a 
> performance
> standpoint:

Thanks for the feedback, I've made the suggested change.

> Make sure you're at least using Ruby 1.9 (that's twice the speed of 
> 1.8), and
> try JRuby.

I was using Ruby 1.8.6, I'll upgrade to 1.9 now and give that a whirl. 
Wasn't aware that the speed difference was so dramatic.

> And finally: Run it through some profiling, to see where your 
> bottlenecks
> actually are.

Haven't learned about profiling yet, but this is probably as good a time 
as any. I'll take a look into that and try to figure out where it's 
slowing down.

Thanks for all of your feedback!

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