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 s...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.展开更多
The damage of coronavirus to our Earth is unprecedented that is going to kill the entire human beings. Facing this kind of situation, there are two completely different kinds of viewpoints. According to the philosophy...The damage of coronavirus to our Earth is unprecedented that is going to kill the entire human beings. Facing this kind of situation, there are two completely different kinds of viewpoints. According to the philosophy of “Atheists” Karl Max and Friedrich Engels, “there is a Bigging, there must be an End”, meaning our Earth will eventually collide with the other planet and be destroyed completely. According to Holly Bible, however, Jesus, will come down again to bring Godly people to the Heaven and leave the remaining in the coronavirus-hell. During this waiting period, the “Internet Institutes” can provide the most useful knowledge for the other planets.展开更多
文摘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.
文摘The damage of coronavirus to our Earth is unprecedented that is going to kill the entire human beings. Facing this kind of situation, there are two completely different kinds of viewpoints. According to the philosophy of “Atheists” Karl Max and Friedrich Engels, “there is a Bigging, there must be an End”, meaning our Earth will eventually collide with the other planet and be destroyed completely. According to Holly Bible, however, Jesus, will come down again to bring Godly people to the Heaven and leave the remaining in the coronavirus-hell. During this waiting period, the “Internet Institutes” can provide the most useful knowledge for the other planets.
