Patent ID: 8560667
Filing Date: 2013-10-15
Classification: G06F,H04L

Abstract:
1. An analysis apparatus for carrying out an analysis for responses of a computer system including a plurality of servers, comprising: a unit to obtain data concerning a CPU utilization ratio of each of said plurality of servers from said computer system; a storage device; a unit to obtain processing history data generated in said computer system, to generate data of a request frequency by users of said computer system, and to store said data of said request frequency into said storage device; and an estimate unit to estimate an average delay time in each said server by using said CPU utilization ratio of each said server and said request frequency stored in said storage device, and wherein said estimate unit comprises: a consumed CPU time estimate unit to estimate an average consumed CPU time per one request for each said server by carrying out a regression analysis using said CPU utilization ratio of each said server and said request frequency; and a server delay time estimate unit to estimate an average delay time in each said server by using said average consumed CPU time per one request for each said server and said CPU utilization ratio of each said server, and said consumed CPU time estimate unit calculates inclination of a regression straight line on a plane mapped by said CPU utilization ratio and said request frequency as said average consumed CPU time per one request for each said server.