for Web Servers
نویسنده
چکیده
First we introduce VALUE, a caching policy based on document values. The document value function used by VALUE, integrates four major document access parameters: the time of the last access, the number of accesses, the size of the document and the number of document modifications. VALUE consistantly outperforms (by up to 15%) all other cache policies. However, its straightforward implementation has high CPU overhead.
منابع مشابه
Load Balancing Approaches for Web Servers: A Survey of Recent Trends
Numerous works has been done for load balancing of web servers in grid environment. Reason behinds popularity of grid environment is to allow accessing distributed resources which are located at remote locations. For effective utilization, load must be balanced among all resources. Importance of load balancing is discussed by distinguishing the system between without load balancing and with loa...
متن کاملبررسی تأثیرات رایانش ابری بر یادگیری الکترونیکی
In the world of training, online training is introduced as a modern model of training services. Cloud computing is a modern technology which is provided software, infrastructure and platform as internet. Also, online training is introduced as a modern model of training services on the web. In this research, the impact of cloud computing on e-learning on the case of Mehralborz online university ...
متن کاملبهینهسازی اجرا و پاسخ صفحات وب در فضای ابری با روشهای پیشپردازش، مطالعه موردی سامانههای وارنیش و انجینکس
The response speed of Web pages is one of the necessities of information technology. In recent years, renowned companies such as Google and computer scientists focused on speeding up the web. Achievements such as Google Pagespeed, Nginx and varnish are the result of these researches. In Customer to Customer(C2C) business systems, such as chat systems, and in Business to Customer(B2C) systems, s...
متن کاملHF-Blocker: Detection of Distributed Denial of Service Attacks Based On Botnets
Abstract—Today, botnets have become a serious threat to enterprise networks. By creation of network of bots, they launch several attacks, distributed denial of service attacks (DDoS) on networks is a sample of such attacks. Such attacks with the occupation of system resources, have proven to be an effective method of denying network services. Botnets that launch HTTP packet flood attacks agains...
متن کاملA density based clustering approach to distinguish between web robot and human requests to a web server
Today world's dependence on the Internet and the emerging of Web 2.0 applications is significantly increasing the requirement of web robots crawling the sites to support services and technologies. Regardless of the advantages of robots, they may occupy the bandwidth and reduce the performance of web servers. Despite a variety of researches, there is no accurate method for classifying huge data ...
متن کاملUniversal Web Server The X - Switch System
Web servers have become increasingly powerful since they were created. The services they offer have changed as computer hardware has improved, networks have sped up and people demand more interaction for their Web browsers. Web servers perform their function well. They are built purely for one purpose, namely speed. Web servers have sacrificed some functionality by prioritizing efficiency and s...
متن کامل