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From Adrian Crum <adrian.c...@sandglass-software.com>
Subject Re: Low utilization of OFBiz on multi core servers
Date Wed, 13 Aug 2014 13:04:42 GMT
Your are running your tests on a development deployment. Try setting up 
your deployment for production:

https://cwiki.apache.org/confluence/display/OFBTECH/Apache+OFBiz+Technical+Production+Setup+Guide

Adrian Crum
Sandglass Software
www.sandglass-software.com

On 8/13/2014 1:12 PM, Wang, Weikun wrote:
> Hi all,
>
> I'm using OFBiz to study the performance of web service in the cloud.
> I found a problem when I deploy OFBiz on a 2 core server, which has
> 4G memory. The OFBiz I used is the 12.04.03 version. The OS is ubuntu
> 12.04.
>
> I was using OFBench to send requests to OFBiz. The OFBench is able
> to send different kinds of requests, like login, logout, visit main page.
> I was testing how many users I set in OFBench will saturate the server.
> At some point I found that the server was overloaded when I set 20
> users because the mean response time for the "main" request is over
> 10 seconds. However, the CPU utilization is only 60%. I also did a test
> for one core server. When it's overloaded, the utilization is almost 100%.
>
> I was using the default derby database. I monitor the memory of the
> 2 core server, it was like 2GB used. So I guess memory is not a problem.
> The other parameters are default. This is not the first time I notice this
> problem. I also found this on other multi-core servers.
>
> Could anyone help me on this please?
>
> Thanks a lot in advance!!!!
>
> Best wishes,
> Weikun
>

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