Performance Modeling of Cloud-based Web Systems to Estimate Response Time Distribution

Performance analysis of distributed systems with tiered software architecture has popularly entailed mean response time as the commonly used metric. It must be noted however that as a metric, response-time percentile is of greater importance since it is more desirable to reduce the variability of a system’s response time, rather than minimizing the mean response time. It is a fact that analytical approximations for response time distribution do exist. However these analytical solutions capture only the steady-state behaviour (long-run behaviour) of the system. On the other hand, today’s tiered cloud-based systems are so complex that they never reach steady-state. Consequently, analyzing their transient behaviour (short-term behaviour) becomes far more important than analyzing their steady-state behaviour. Regardless, it is a difficult task to accomplish transient analysis analytically due to the enormous state space of such systems. In this work, we analyze the transient behaviour...

• Type: Journal
• Year: 2016
• Where: INDIASE
• Authors: Dayle Chettiar, Arindam Das, Olivia Das
• Keywords: INDIASE 2016, Software Engineering