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From "Claus Ibsen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-4863) Using <threads>/threads() is ALOT slower than using the seda:endpoint
Date Fri, 06 Jan 2012 15:42:40 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-4863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13181400#comment-13181400
] 

Claus Ibsen commented on CAMEL-4863:
------------------------------------

The direct producer *waits* (blocks) for the Exchange to be done. It does not matter if you
use 1, 2, 5 or 100 threads to process the Exchange. The direct producer will still wait until
the Exchange is done.


                
> Using <threads>/threads() is ALOT slower than using the seda:endpoint
> ---------------------------------------------------------------------
>
>                 Key: CAMEL-4863
>                 URL: https://issues.apache.org/jira/browse/CAMEL-4863
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.9.0
>         Environment: JBoss 7.1 CR1b
>            Reporter: Aaron Whiteside
>            Assignee: Claus Ibsen
>            Priority: Critical
>              Labels: performance, seda, threading, threads
>             Fix For: 2.10
>
>         Attachments: camel-threads-vs-seda-testcase.tar.gz
>
>
> Snippets from my routing file:
> {code:xml}
> <threads maxPoolSize="10" maxQueueSize="10">
>    <to uri="jms:queue:testQueue?deliveryPersistent=true"/>
> </threads>
> {code}
> compared to:
> {code:xml}
> <to uri="seda:test?concurrentConsumers=10&size=10"/>
> {code}
> {code:xml}
> <from uri="seda:test?concurrentConsumers=10&size=10"/>
> <to uri="jms:queue:testQueue?deliveryPersistent=true"/>
> {code}
> Using <threads> I get about 600 requests/per second.
> Using seda endpoint I get about 3000 requests/per second.
> Looking at the thread pools created by Camel in jconsole: I can see that the one created
by <threads> is mostly idle as compared to the one created by the seda endpoint which
is always busy.
> Also in the MBean Camel creates for it's managed thread pools, for the ThreadPool created
by <threads> the TaskQueueSize attribute is almost always 0 and never more than 1. This
is in contrast to the TaskQueueSize attribute on ThreadPool created by the seda endpoint which
is always 10 (the seda queue size, and obviously until all the tasks have completed).

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