From mboxrd@z Thu Jan  1 00:00:00 1970
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
In-reply-to: Your message of "Tue, 03 Mar 2009 10:11:10 PST."
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References: <138575260903030352s623807d7p5a3075b1f7a591f6@mail.gmail.com>
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	<1236103870.4929.101.camel@goose.sun.com>
From: Bakul Shah <bakul+plan9@bitblocks.com>
Date: Tue,  3 Mar 2009 10:38:35 -0800
Message-Id: <20090303183836.2DE505B2E@mail.bitblocks.com>
Subject: Re: [9fans] threads vs forks
Topicbox-Message-UUID: ad0419a8-ead4-11e9-9d60-3106f5b1d025

On Tue, 03 Mar 2009 10:11:10 PST "Roman V. Shaposhnik" <rvs@sun.com>  wrote:
> On Tue, 2009-03-03 at 07:19 -0800, David Leimbach wrote:
>
> > My knowledge on this subject is about 8 or 9 years old, so check with your
> local Python guru....
> >
> >
> > The last I'd heard about Python's threading is that it was cooperative
> > only, and that you couldn't get real parallelism out of it.  It serves
> > as a means to organize your program in a concurrent manner.
> >
> >
> > In other words no two threads run at the same time in Python, even if
> > you're on a multi-core system, due to something they call a "Global
> > Interpreter Lock".
>
> I believe GIL is as present in Python nowadays as ever. On a related
> note: does anybody know any sane interpreted languages with a decent
> threading model to go along? Stackless python is the only thing that
> I'm familiar with in that department.

Depend on what you mean by "sane interpreted language with a
decent threading model" and what you want to do with it but
check out www.clojure.org.  Then there is Erlang.  Its
wikipedia entry has this to say:
    Although Erlang was designed to fill a niche and has
    remained an obscure language for most of its existence,
    it is experiencing a rapid increase in popularity due to
    increased demand for concurrent services, inferior models
    of concurrency in most mainstream programming languages,
    and its substantial libraries and documentation.[7][8]
    Well-known applications include Amazon SimpleDB,[9]
    Yahoo! Delicious,[10] and the Facebook Chat system.[11]