arXiv subjects

James F Brady

Publications and source records attributed to James F Brady.

2 recordsLinked to original sources

arXiv2020

Is Your Load Generator Launching Web Requests in Bunches?

One problem with load test quality, almost always overlooked, is the potential for the load generator's user thread pool to sync up and dispatch queries in bunches rather than independently from each other like real users initiate their requests. A spiky launch pattern misrepresents workload flow as well as yields erroneous application response time statistics. This paper describes what a real user request timing pattern looks like, illustrates how to identify it in the load generation environment, and exercises a free downloadable tool which measures how well the load generator is mimicking the timing pattern of real web user requests.

cs.PF↗

arXiv2020

Computing System Congestion Management Using Exponential Smoothing Forecasting

An overloaded computer must finish what it starts and not start what will fail or hang. A congestion management algorithm the author developed, and Siemens Corporation patented for telecom products, effectively manages traffic overload with its unique formulation of Exponential Smoothing forecasting. Siemens filed for exclusive rights to this technique in 2003 and obtained US patent US7301903B2 in 2007 with this author, an employee at the time of the filing, the sole inventor. A computer program, written in C language, which exercises the methodology is listed at the end of this document and available on GitHub.

cs.PF↗