From: Ezra Zygmuntowicz <ezmobius@...>
Date: 2006-05-28T03:25:15+09:00
Subject: Re: Ruby Threads...


On May 27, 2006, at 11:19 AM, cremes.devlist@mac.com wrote:

>
> On May 27, 2006, at 10:14 AM, ara.t.howard@noaa.gov wrote:
>
>> On Sat, 27 May 2006, ReggW wrote:
>>
>>> Francis Cianfrocca wrote:
>>>
>>>> It seems to me that Ruby's green-thread implementation is perfectly
>>>> adequate
>>>> for most programmers' requirements.
>>>
>>> But the problem is that it doesn't take advantage of these new  
>>> multi-core
>>> processor that are now starting to become the standard machines  
>>> being sold
>>> (at least for my customers).
>>
>> it's a small problem.  here is some code which starts two  
>> processes, three if
>> you count the parent.  both run in separate processes using drb as  
>> the ipc
>> layer to make the communication painless.  because the code uses  
>> drb the com is
>> simple.  because it uses multiple processes it allows the kernel  
>> to migrate
>> them to different cpus.  the cost is about 100 lines of pure-ruby  
>> (the slave
>> lib).  notice how easy it is for parent to communicate with child  
>> and for
>> childrent to communicate with each other:
>>
>>     harp:~ > cat a.rb
>>     require 'slave'
>>     require 'yaml'
>>
>> [snip cool example using 'slave']
>
> cremes$ gem list -b |grep slave
> slave (0.0.0)
>     slave
> cremes$ gem install slave
> Attempting local installation of 'slave'
> Local gem file not found: slave*.gem
> Attempting remote installation of 'slave'
> ERROR:  While executing gem ... (Gem::GemNotFoundException)
>     Could not find slave (> 0) in the repository
>
> Ruh roh!
>
> cr
>
>
> Chuck Remes


http://codeforpeople.com/lib/ruby/slave/

-Ezra