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From "edge wang (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CAMEL-4531) Expose workerCount parameter of Netty NioServerSocketChannelFactory in Camel-Netty
Date Sun, 09 Oct 2011 15:31:29 GMT
Expose workerCount parameter of Netty NioServerSocketChannelFactory in Camel-Netty
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                 Key: CAMEL-4531
                 URL: https://issues.apache.org/jira/browse/CAMEL-4531
             Project: Camel
          Issue Type: Improvement
          Components: camel-netty
    Affects Versions: 2.8.1
         Environment: ALL
            Reporter: edge wang
         Attachments: workerCount.patch

Camel-netty component did not implement oio model of netty, we can only use nio one, however
it uses default workerCount parameter from Netty, which is cpu_core_threads*2.

This is far from enough when the underlying app is a little bit slow, e.g. a traditional transactional
application. In this situation NioWorker threads become an obvious bottle neck.

I think that exposing workerCount is a very practical yet effective way for one to broaden
the usage scenario of camel-netty in various network communication/application environment.

I add a workerCount parameter in the configuration, one can use it in the Endpoint URL: "netty:tcp://0.0.0.0:1111?...&workerCount=256&...".
I leave the default value to 0 so that one can use Netty default policy by omit the param.

I have tested the patch in a 2 core(4 Threads) machine, using 256 workers, it significantly
improves the performance by 15 times, than the default parameter of only 8 workers, while
CPU usage only increase 5 times.


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