From: Lothar Scholz <mailinglists@...>
Date: 2005-04-09T18:05:56+09:00
Subject: Re: Seven new VMs, all in a row

Hello Peter,

PS> Why is it that you'd want real threads?  What can real threads do that
PS> Ruby VM threads can't do?  The answer is synchronous calls out to OS
PS> services.  (As well as utilizing multiple processors, but that's 
PS> another issue.)

Having a database app where each "fetch_row" call into the database
driver have to do at least 2 sync operations and 2 thread schedules
really scares me when we are talking about high performance VM's.

In fact this is one the real weaknesses in the ruby implementation.
Does VM have a fork (or some other process like) model to use real
OS threads. TCL and Perl have this and it's part of there popularity.


-- 
 Best regards,                        emailto: scholz at scriptolutions dot com
 Lothar Scholz                        http://www.ruby-ide.com
 CTO Scriptolutions                   Ruby, PHP, Python IDE 's