From: Eric Hodel <drbrain@...7.net>
Date: 2003-08-06T09:55:19-07:00
Subject: Re: Why does Ruby have callcc?


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Julian Fitzell (julian@beta4.com) wrote:

> Well now, it's not that it doesn't scale - you just have to be careful=20
> how you let it scale.  There are several useful deployed applications=20
> out there using Seaside.  One in particular that Avi and I wrote has=20
> been running for a year and a half with almost no maintenance on our=20
> part.  Now you're right that you probably wouldn't want to use it for a=
=20
> site that received millions of hits in a day, but you have a quite a bit=
=20
> of control over what state gets stored for backtracking and how many=20
> previous page views you want to keep around for a session, etc.  You can=
=20
> definitely reasonably have a session kept under a couple of megs, which=
=20
> could give you hundreds of concurrent users on a box with a Gig of ram.

Currently, Borges doesn't support all that yet (some of it yes), I
add stuff to it as I need it.

> Now I'm trying to remember the state of Borges (and the limitations of=20
> the basic part he ported back to ruby for that talk) and I can't=20
> really... so it may be that what he demoed didn't scale for some reason.=
=20
>  So it's possible you're remembering correctly ;)

The mini-port Avi did could only run in a single thread, I have removed
this restriction, and added a few other things like session expiry.

The application 'Webplayer' at:

http://segment7.net/ruby-code/webplayer/webplayer.html

Is written using Borges and WEBrick.  If you want a good example
application of how to write a Borges app, this is it.  (And is a pretty
good web-based mp3 player controller.)

--=20
Eric Hodel - drbrain@segment7.net - http://segment7.net
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