Advances in Computer Engineering http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2014 , Hindawi Publishing Corporation . All rights reserved. A Water Flow-Like Algorithm for the Travelling Salesman Problem Thu, 07 Aug 2014 09:06:49 +0000 http://www.hindawi.com/journals/aceng/2014/436312/ The water flow-like algorithm (WFA) is a relatively new metaheuristic that performs well on the object grouping problem encountered in combinatorial optimization. This paper presents a WFA for solving the travelling salesman problem (TSP) as a graph-based problem. The performance of the WFA on the TSP is evaluated using 23 TSP benchmark datasets and by comparing it with previous algorithms. The experimental results show that the proposed WFA found better solutions in terms of the average solution and the percentage deviation of the average solution from the best-known solution. Ayman Srour, Zulaiha Ali Othman, and Abdul Razak Hamdan Copyright © 2014 Ayman Srour et al. All rights reserved. Real-Time Linux Analysis Using Low-Impact Tracer Thu, 05 Jun 2014 07:15:49 +0000 http://www.hindawi.com/journals/aceng/2014/173976/ Debugging real-time software presents an inherent challenge because of the nature of real-time itself. Traditional debuggers use breakpoints to stop the execution of a program and allow the inspection of its status. The interactive nature of a debugger is incompatible with the strict timing constraints of a real-time application. In order to observe the execution of a real-time application, it is therefore necessary to use a low-impact instrumentation solution. Tracing allows the collection of low-level events with minimal impact on the traced application. These low-level events can be difficult to use without appropriate tools. We propose an analysis framework to model real-time tasks from tracing data recovered using the LTTng tracer. We show that this information can be used to populate views and help developers discover interesting patterns and potential problems. François Rajotte and Michel R. Dagenais Copyright © 2014 François Rajotte and Michel R. Dagenais. All rights reserved.