Patent ID: 8171133
Filing Date: 2012-05-01
Classification: G06F,G06Q

Abstract:
1. A computer system which handles web requests received from clients, comprising: a request classification log generating tool generating a request classification log which describes a number of web requests handled by said computer system in each of at least one measurement period for each of at least one type of said web requests; a system log generating tool generating a system log which describes a status of resources of said computer system in said each measurement period; and a resource usage status calculation tool, implemented by a hardware processor, calculating a request handling resource usage amount per web request by using said request classification log and said system log for each type of said web requests, the request handling resource usage amount being a usage amount of resources used for handling said web requests, wherein said resource usage status calculation tool calculates said request handling resource usage amount through performing multiple linear regression analysis on a number of web requests of each type of said web requests in said each measurement period described in said request classification log and a usage status of resources of said computer system described in said system log for said each measurement period, wherein a web layer is formed by at least one web server in said computer system, wherein said multiple linear regression analysis are performed for measurement periods “1” to “m”, m being a measurement number of times, wherein a type of each of said web requests is any of web request types “R wherein a CPU time U where Δt is a length of each of said measurement periods, ρ N wherein a memory usage amount M wherein M wherein m is set to a value greater than the number n of the types of the web requests so that an inverse matrix of the matrix (