Load testing of IT applications is fraught with the challenges of time to market, quality of results, high cost of commercial tools, and accurately representing production like scenarios. It would help IT projects to be able to test with a small number of users and extrapolate to scenarios with much larger number of users. This in turn will cut down cycle times and costs and allow for a variety of extrapolations closer to production. We present a simple extrapolation technique based on statistical empirical modeling, which we have found to be more than 90% accurate across a range of applications running across a number of hardware servers. The technique has currently been validated for scenarios where the hardware is the bottleneck and is extensible to a wider range of scenarios as well.
S. Duttagupta and Mansharamani, R., “Extrapolation Tool For Load Testing Results”, International Symposium on Performance Evaluation of Computer & Telecommunication Systems (SPECTS). IEEE, The Hague, Netherlands, pp. 69-76, 2011.