From: Michael Neumann <mneumann@...>
Date: 2007-11-16T06:16:20+09:00
Subject: Embedding Ruby 1.9 in multithreaded app

Hi,

I've a multithreaded (pthread) application that uses one Ruby interpreter. Is it 
possible to call into Ruby from more than one thread at the same time? Do I have 
to protect Ruby with a mutex myself or is Ruby doing that internally? I couldn't 
find the places where the big giant lock is aquired.

Note that I am using Ruby 1.9.

I heard about that Multi-VM idea (n VMs per process). Any ideas how much space 
this would save comparing it against the approach with n processes, each of 
which runs 1 VM? I think, as each VM must contain the basic classes and objects 
and of course the application, the gain will not be that much, at least not in 
memory. It will be probably a little bit more efficient for the operating system.

Thanks in advance.

Regards,

   Michael