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Python Server Page Performance Analysis and Modeling

Communications and Network 2024年第1期16卷 1-30页

作者： Razafindraibe Marolahy Alix randrianomenjanahary lala ferdinand Rafamantanantsoa Fontaine Mahatody Thomas F. Angelo Raherinirina University of Fianarantsoa Fianarantsoa Madagascar

Today, in the field of computer networks, new services have been developed on the Internet or intranets, including the mail server, database management, sounds, videos and the web server itself Apache. The number of solutions for this server is therefore growing continuously, these services are becoming more and more complex and expensive, without being able to fulfill the needs of the users. The absence of benchmarks for websites with dynamic content is the major obstacle to research in this area. These users place high demands on the speed of access to information on the Internet. This is why the performance of the web server is critically important. Several factors influence performance, such as server execution speed, network saturation on the internet or intranet, increased response time, and throughputs. By measuring these factors, we propose a performance evaluation strategy for servers that allows us to determine the actual performance of different servers in terms of user satisfaction. Furthermore, we identified performance characteristics such as throughput, resource utilization, and response time of a system through measurement and modeling by simulation. Finally, we present a simple queue model of an Apache web server, which reasonably represents the behavior of a saturated web server using the Simulink model in Matlab (Matrix Laboratory) and also incorporates sporadic incoming traffic. We obtain server performance metrics such as average response time and throughput through simulations. Compared to other models, our model is conceptually straightforward. The model has been validated through measurements and simulations during the tests that we conducted.

关键词： Performance Analysis Queue Performance Model Web Server Internet World Wide Web Web Server Performance

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Analysis and Evaluation of Performance Related to Java and PHP Security Codes

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Communications and Network 2021年第1期13卷 36-49页

作者： Fontaine Rafamantanantsoa Rabetafika Louis Haja randrianomenjanahary lala ferdinand University of Fianarantsoa Fianarantsoa Madagascar

In recent years, Internet exposure of applications continuously engenders new forms threats that can endanger the security of the entire system and raises many performance issues related to code security. The safety of information systems becomes essential. This is why the performance linked to security codes is of importance essential in the security systems of all companies. Indeed, as contribution, to carry out measurements, it appropriates tools that are the JMH tool (Java Microbenchmark Harness) and the PHP Benchmark script tool which include unsecure java and PHP codes and secured against SQL (Structured Query Language) injection, XSS (Cross Site Scripting) i.e., using prepared requests, stored procedures, validation of input from white lists, reinforcement of minimum privilege, when sending requests from the last ones to MySQL databases and Postgresql. We recover the times of response to his requests. From java codes and PHP (Hypertext Preprocessor) secure, we also retrieve the response time for requests to databases MySQL and PostgresqL data. We then obtain the curves and interpretations comparing performance related to security and non-security of codes. The goal is to analyze and evaluate the performance comparing secure Java and PHP code against unsecure java and PHP code using MySQL and Postgresql databases. In Section 1, we presented the performance of the code Java and PHP. The configuration of the experiments and the experimental results are discussed in Sections 2 and 3, respectively. Use of suitable tool which is the JMH tool and the PHP Benchmark script tool, we have developed in Java 1.8 and PHP 7.4 secure and non-secure codes that send the queries to the MySQL or Postgresql database to carry out the measurements which led to the conclusion that the insecure PHP and Java codes are faster in terms of response time compared to the PHP and Java secure codes as the number of tables linked to the query increases because the bl

关键词： Applications Attacks XSS Security Java PHP Performances

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