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10.1 Online shop project brief
This case study follows the re-release of an online shop using WebSphere Commerce. The subject company hired another company to create a customized WebSphere Commerce application, and consulted with IBM on machine sizing and configuration. The online shop application was developed, integrated with the back-end systems, and tested. Only then was performance considered.
Once stress and load testing commenced the company become aware that performance was well short of expectations. On minimal user load, the quickest page was over 20 seconds at the 95 percentile (that is, 5% of the pages took over 20 seconds). The slowest pages were well over 90 seconds.
It was also determined that the WebSphere Commerce application was using 100% of the CPU, even though very little content was being delivered.
By the time user testing was completed, the team customizing the WebSphere Commerce application had all but disbanded. This severely limited the options available to adjust the application.