Implementation and evaluation of a log search engine with a regular expression for real-time systems

摘要

In the field of recent development of embedded systems, a period of product development (Time-to-market) is getting shorter to make more competitive products despite these products are getting more complicated. For these reasons, importance of debug process is getting greater to shorten its period. Offline debugging is often used for checking validity of a embedded system which traditional debugging operations are not applicable to, for example, in case that it can not stop its execution by having reached a breakpoint. However, it is hard for developers to do offline-debugging without aid of a computer due to huge track histories because major work of offline debugging is to find illegal behavior of a target system. In order to solve the problem, we describe a method of history search by using of regular expression and its evaluation in this paper.