Measuring End-User Availability on the Web: Practical Experience

For service applications on a network, measuring availability, performance, and quality of service is critical. Yet traditional software and hardware measures are both inadequate and misleading. Better measures of availability that incorporate end-user experience will lead to meaningful benchmarks and progress in providing highavailability services. In this paper, we present the results of a series of long-term experiments that measured availability of select web sites and services with the goal of duplicating the end-user experience. Using our measurements, we propose a new metric for availability that goes beyond the traditional sole measure of uptime.

• Type: Conference
• Year: 2002
• Where: DSN
• Authors: Matthew Merzbacher, Dan Patterson
• Keywords: Availability, Computer Networks, DSN 2002, End-user Experience, Incorporate End-user Experience