From: Peter Suk <peter.kwangjun.suk@...>
Date: 2005-04-12T01:40:22+09:00
Subject: Re: Seven new VMs, all in a row

On Apr 11, 2005, at 4:04 AM, flaig@sanctacaris.net wrote:

> My first thought concerning "explicit" threads was: Have a look at 
> Erlang (http://www.erlang.org), which is explicitly designed for 
> distributed applications. >20'000 threads per application are not 
> uncommon in large Erlang programs, so I take it for granted that their 
> implementation must be pretty highly optimized. (Don't you ask me 
> which kind of threads is underlying the Erlang VM, though -- 
> concurrency is a grammar-level feature of Erlang). However, it's all 
> about CSPs. No shared memory. So this won't be much of a help, will 
> it?
>
> -- Ruediger Marcus

I know that people have been agitating for a shared "Perm Space" 
between different instances of running VisualWorks VMs.  This may have 
happened already while I wasn't looking.  (Perm Space contains objects 
which are exempt from Garbage Collection.  When deploying Smalltalk 
applications, one often does a "Perm Save" so that the application 
classes are never scanned.  I also have heard that there are other uses 
of inter-process shared memory for the VM planned.

--Peter

--
There's neither heaven nor hell, save what we grant ourselves.
There's neither fairness nor justice, save what we grant each other.