London software testing news UK

Load testing to boost capacity

Posted in Load testing,Software testing by testing in London on March 5, 2009

From PRWeb

The new Society for Human Resources Management (SHRM) website was recently given a huge capacity boost in time for its unveiling, enabling the site to handle large amounts of traffic from its 250,000 members. Web Performance, Inc., (WPI) developers of industry-leading Web Performance Load Tester software, increased the site’s capacity from 100 to 2000 users, and reduced server requirements to less than 25% CPU utilisation, eliminating two servers altogether and reducing potential software license expenses by nearly $200,000.

WPI’s initial round of load testing, however, revealed serious bottlenecks in SHRM’s customized SharePoint Server cluster. At only 200 users, the cluster generated average page durations of 10-30 seconds, serving only four pages per second: hardly the capacity the site would need to serve up page views of nearly 15,000 documents.

WPI developed five custom test cases to exercise various navigation paths to a small subset of 500 site documents. They then ran several rounds of load tests, each focusing on a single server to isolate the cause, tuning the cluster’s configuration each time with custom code that incrementally improved capacity.

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