[Seaside] Seaside for large, high-traffic sites.

James Robertson jrobertson at cincom.com
Fri Sep 11 10:54:01 UTC 2009

You can get good performance out of a VisualWorks image running 
Seaside.  The Opentalk based HTTP server we use has been tested at 
over 100 requests per second (I ran those tests on some fairly low 
end hardware a couple of years ago).

At 05:34 AM 9/11/2009, you wrote:
>I have some questions about Seaside scalability.
>In 2008 I wrote a small webapp in Seaside and overall found the 
>experience very
>enjoyable; so much so that I would prefer to do my next project in it.
>Unfortunately, due to its nature, this project will receive considerably more
>traffic than the last, and I am somewhat skeptical of Seaside's (and Squeak's)
>ability to scale.
>I understand Smalltalks (especially Squeak) use green threads for concurrency,
>so obviously a single VM process handling all of those HTTP connections would
>not work. Rather, the solution seems to be some sort of parallel 
>setup with many
>VM processes running simultaneously, each using green threads as needed, with
>some load balancer in front of them. Do they share the same image (in which
>case, I am guessing they can't save the image), or must each have 
>its own? Next,
>persistence: I need a robust alternative. It need not be a pure 
>object database,
>just something with decent performance that can scale; a mature 
>Squeak interface
>to an RDBMS like PostgreSQL would suffice. Additionally, I am curious about
>64-bit Squeak and if it can work with Seaside.
>Am I setting myself up for a lot of pain, or is it really practical 
>to use these
>tools with large websites? If Squeak + Seaside isn't enough, how hard is it to
>drop down into C for extra performance or to call out to foreign code?
>Thank you in advance.
>seaside mailing list
>seaside at lists.squeakfoundation.org

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