Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
Chapter 4 - DSpace at Waseda University
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<strong>Chapter</strong> 4<br />
Infrastructure Framework<br />
In this chapter, we will be describing Kernel Analysis System (KAS) to solve problems<br />
occurring in kernel. Infrastructure of KAS is composed of three main layers. Each layer has<br />
following as:<br />
� Detection Layer (DL): In this layer, problems occurred in the kernel is found by<br />
using event log and saved the line inform<strong>at</strong>ion (start line and end line), making it<br />
easier when used by other layer. Also, by counting overall problem occurrence, it is<br />
possible to check the entire problem occurrence r<strong>at</strong>io.<br />
� Separ<strong>at</strong>ion Layer (SL): In this layer, a problem occurred as event log is divided from<br />
whole event logs. By dividing event logs, a developer and administr<strong>at</strong>or can check<br />
the problem easily and possible to find out wh<strong>at</strong> event has really occurred.<br />
� Analysis Layer (AL): In this layer, by using problem occurred an event log, we can<br />
easily and quickly detect the cause of problem by displaying execution time,
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