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From "James Strachan" <james.strac...@gmail.com>
Subject Re: Synchronous Messaging Performance Question
Date Tue, 05 Dec 2006 17:13:13 GMT
Are you creating the producer and consumer up front and reusing the
same ones for all requets & responses in your test?

On 12/5/06, zephyr451 <mgray@unica.com> wrote:
>
>
> I am having a problem with synchronous messaging performance.   I created a
> test case similar to the RequesterTool.java and ConsumerTool.java wherein I
> create a request and then block waiting for a response. The response is
> being waited for using receive() rather than an onMessage() handler; in case
> that matters.  The producer and consumer are running on two separate
> machines connected via a single switch.
>
>
> When I configure the above scenario using a single producer (in it's own
> thread) and a single consumer.  I measure about 9.9 request/responses per
> second.  This occurs with virtually no load on either CPU.  Also I ran a
> thread monitoring tool and, if it means anything, I noticed on the producer
> that most of the time was spent blocked on
> edu.emory.mathcs.backport.java.util.concurrent.SynchronousQueue$Node
>
> When I configure my test case to use two producers each running in it's own
> thread, with a single consumer. I measure ~490 request/responses per second
> with about 70% CPU load on each machine.
>
> The message broker is running in a separate JVM on the producer machine.   I
> did try setting the URL option wireFormat.tcpNoDelayEnabled to true, but
> that made no difference in the behavior.
>
> Configuration Notes:
>
>    Producer Machine:  Single CPU WIndows 2003 Server, 2.0gb RAM,   Java
> 1.5.0_09-b03
>
>    Consumer Machine:  Linux Red Hat 4 Enterprise,  1.0gb RAM Java
> 1.5.0_09-b03
>
> Any suggestions folks have would be greatly appreciated.  I made an effort
> to track down all the synchronous tuning information folks have posted, but
> I could have missed something.
>
> Regards,
>
> Michael
>
> --
> View this message in context: http://www.nabble.com/Synchronous-Messaging-Performance-Question-tf2762926.html#a7703463
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>


-- 

James
-------
http://radio.weblogs.com/0112098/

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