You mean doing blocking I/O in the worker threads? Or using EventMachine 
somehow? Sorry for not understanding.

On Friday, 22 July 2016 11:51:48 UTC+5:30, raggi wrote:
>
> Why not just use Ruby's Queue class, and do io in your worker threads, 
> sizing your pool appropriately to fill cpu while waiting on io?
>
> On Jul 21, 2016 11:10 PM, "Arindam Mukherjee" <arindam....@gmail.com 
> <javascript:>> wrote:
>
>> I am trying to build a task broker using EventMachine, thread pools and a 
>> fibers. I wanted to validate the approach and ask questions about some 
>> challenges I am facing.
>>
>> The task broker runs a thread-pool (perhaps not EM.defer) to which 
>> individual tasks are assigned.
>> The tasks are I/O bound, but occasionally may do CPU bound activity.
>>
>> Proposed design:
>> 1. EventMachine event loop runs in its own thread.
>> 2. Each task is represented by a Ruby Proc / lambda. Worker threads from 
>> a thread pool service each task.
>> 3. A worker thread runs the task in a fiber. There is a global EM::Queue 
>> for shipping I/O work to the EM loop. Each task creates a channel that the 
>> EM loop uses to ship data back to the task. 4. The task subscribes to the 
>> channel it creates. It does a Fiber.yield after shipping I/O to the EM 
>> loop. And in the subscription callback, it resumes itself.
>>
>> This way, using Fibers to represent tasks, I hoped to have single threads 
>> multiplexing multiple tasks. But I am somehow not able to pull this off. Is 
>> this a viable approach?
>>
>> Arindam
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "EventMachine" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to eventmachine...@googlegroups.com <javascript:>.
>> To post to this group, send email to eventm...@googlegroups.com 
>> <javascript:>.
>> Visit this group at https://groups.google.com/group/eventmachine.
>> For more options, visit https://groups.google.com/d/optout.
>>
>

-- 
You received this message because you are subscribed to the Google Groups 
"EventMachine" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to eventmachine+unsubscr...@googlegroups.com.
To post to this group, send email to eventmachine@googlegroups.com.
Visit this group at https://groups.google.com/group/eventmachine.
For more options, visit https://groups.google.com/d/optout.

Reply via email to