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From Rob Davies <rajdav...@gmail.com>
Subject Re: ActiveMQ Persistent Messages Throughput Issues
Date Thu, 20 Mar 2008 10:08:54 GMT

On 19 Mar 2008, at 23:04, Ramit Arora wrote:

>
> Hi All,
> I've been testing the performance of ActiveMQ using Perl publishers
> (Net::Stomp) & Java subscribers. My producers send persistent  
> messages & the
> subscribers are durable. My test results indicate that the  
> throughput does
> not increase with the increase in number of publishers. For example:
>
> case 1: 1 publisher, 25 subscribers
> case 2: 25 publishers, 25 subscribers
>
> In both cases the net throughput observed for the consumers remains  
> the same
> (around 4000 msgs/sec). Is this expected? Shouldn't the throughput  
> increase
> as we increase the number of producers? My broker does not show CPu
> utilization more than 25% in both cases. I am using default settings  
> & the
> default persistence adapter.
>
>
> -- 
> View this message in context: http://www.nabble.com/ActiveMQ-Persistent-Messages-Throughput-Issues-tp16158991s2354p16158991.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
You're probably hitting contention on the disk - which is always the  
limitation with persistence

cheers,

Rob

http://open.iona.com/ -Enterprise Open Integration
http://rajdavies.blogspot.com/




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