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Posted to users@activemq.apache.org by Ramit Arora <ra...@gmail.com> on 2008/03/20 00:04:03 UTC
ActiveMQ Persistent Messages Throughput Issues
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.
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Re: ActiveMQ Persistent Messages Throughput Issues
Posted by Rob Davies <ra...@gmail.com>.
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/