From: Zhukov Pavel <gelios@...>
Date: 2008-06-24T23:56:27+09:00
Subject: Re: Threads in JRuby vs standard Ruby

On Tue, Jun 24, 2008 at 6:29 PM, Iñaki Baz Castillo <ibc@aliax.net> wrote:
> El Martes, 24 de Junio de 2008, Guillermo.Acilu@koiaka.com escribió:
>> Hello guys,
>>
>> This is the first time I am working with threads and so far it gave me a
>> good result in the speed of my code, using Ruby 1.8.6 in the native Mac OS
>> X distribution. By I read in the book "The Ruby Programming language" that
>> the threads in the standard "C" Ruby 1.8.6 are not real OS threads and
>> they all share the same main Ruby thread. I have read also that JRuby
>> implements real OS threads.
>
> Read this good document about Ruby threading:
>  http://www.infoq.com/news/2007/05/ruby-threading-futures
>
>
>> My code triggers more than 200 threads each of them with one private
>> connection to a MySQL database.
>>
>> Would it be a real advantage to use JRuby in this scenario?
>
> Well, Ruby threads are "green" threads, this is: they only exist into the Ruby
> process but not for the OS so all the threads runned into a Ruby process
> share the same processor (you get not advantage of a multiprocessor
> computer).
>
> JRuby uses the Java virtual machine, and that uses real OS threads, but that's
> all I know :)
>
>
>
>
> --
> Iñaki Baz Castillo
>
>

Same problem. But i solve it as DRb + fork.