G'day
This forum is mostly requests for help and responses thereto. Occasionally there is a report on JMeter usage. This is one of those. Last weekend we ran JMeter, wrapped by some locally developed infrastructure, against a stub server. The intent was to determine the throughput of JMeter supported by our infrastructure. Our infrastructure provides run time data in real time, or ahead of time, and collects sampler response times from the samplers in real time. Both of these are done over the network. In the run we delivered SOAP requests, with run time data substituted, to our stub server and received, timed, validated, and emitted timings for the stub's responses. Running 5 JMeter servers on a 16 CPU IBM p570 server with twin core Power 5 1.6GHz CPUs and lots of memory we were able to sustain an average of 5,350 SOAP requests per second for the 49 minute core of the run. We were able to deploy 92% of the available CPU capacity. We used 6 PCs to run our infrastructure in support. There were no singleton resources in the test and the p570 and 6 PCs represents a scalability unit that can be replicated essentially arbitrarily. The sampler was a locally written SOAP sampler implemented on the Java request sampler. The test plan was a locally developed standardized test plan. It dynamically detects the number and location of SOAP requests comprising one or more business transactions identified in the test plan. It sends those SOAP requests in order, business transaction by business transaction, customizing with run time data received over the network as it goes. Much of the test plan is incorporated in include modules. The intent is to have a single test plan that will run essentially any test so reducing proliferation and maintenance. We tuned the standardized test plan to eliminate JMeter test plan components that we found to be expensive, most notably anything that uses a JavaScript interpreter. This e-mail isn't supposed to start some competition to see who can run JMeter fastest. It is simply to recognize the performance available with JMeter and the flexibility of its architecture to allow adaptation to specific needs. My congratulations to those who contributed to its development. Ian Blavins Software performance specialist . TEMENOS The Banking Software Company . PeopleBuilding 2, Maylands Av Hemel Hempstead UK HP2 4NW . T: +44 (0) 1442 431 106 E: [email protected] . www.temenos.com <http://www.temenos.com> . Disclaimer: If you have received this e-mail in error please notify the sender. Please note that any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of TEMENOS. We recommend that you check this e-mail and any attachments against viruses. TEMENOS accepts no liability for any damage caused by any malicious code or virus transmitted by this e-mail.
