authorPHP和JSP作为服务器脚本语言的性能比较-毕业论文外文翻译

jsp服务器  时间:2021-04-29  阅读:()

1

2

3

4

5

6

Performance Comparison of PHP and JSP as Server-Side Scripting Languages

MaterialSource:Notesin Computer Science

Author: Scott Trent;Michiaki Tatsubori; Toyotaro Suzumura;Akihiko Tozawa and TamiyaOnodera

1 Introduction

The dynamic scripting language PHP(PHP Hypertext Preprocessor) has becomeenormously popular for implementing lightweight web applications,and is widely used toaccess databases and other middleware.Apache module popularity surveys performed bySecurity Space in October 2007 indicate that 37%of Apache servers have PHP supportenabled,making it the most popular Apache module by 10 percentage points.Businessesare quickly realizing the powerful combination of a service oriented architectureenvironment with dynamic scripting languages like PHP.However,we believe that thereare still critical performance issues involving PHP which remain to be investigated.

This paper focuses on the use of dynamic scripting languages to implement webserver front-end interfaces.This corresponds with the way that the industry standard webserver performance benchmark SPECweb2005 utilizes PHP and JSP ( JavaServerPages).In this case, scripts are used for the implementation of dynamic page generation,rather than the realization of complex business logic.This contrasts with the traditionaluses of complex JSP-based business logic implementation.While there are numerousstudies on dynamic web content, this paper complements these studies with detailedanalysis focusing on PHP. For example, following the performance study on CGI(Common Gateway Interface) based web servers for dynamic content by Yeager&McGrath back in 1995, researchers and practitioners have been examining theperformance of more recent dynamic Webcontent generation technologies.These works,however, handle application scenarios where servlet front-ends implement relativelycomplexbusiness logic.

Although Warner and Worley discuss the importance of also using PHP withSPECweb2005, to the best of the author’s knowledge, this paper is the first to publish adetailed analysis of SPECweb2005 experimental results using both PHP and JSP. Thedetailed analysis of PHP and JSP performance based on SPECweb2005 offered by thispaper enables designers and implementers of web servers to understand the relativeperformance and through put of different versions and configurations of PHP and JSP.

7

2 Multi-tier Web Server Architecture:Lightweight Front-EndUsing PHP/JSP

Developers typically use PHP to implement a front-end interface to dynamic Webcontent generators,which are combined with web server software and back-end serversto provide dynamic content.The web server directly handles requests for static contentand forwards requests for dynamic content to the dynamic content generator. Thedynamic content generator, supported by back-end servers, executes code which realizesthe business logic of a web site and stores dynamic state. Back-end servers may beimplemented as a straight-forward database, or may be more complex servers handlingthe business logic of the web site. The front-end implementation may vary fromheavy-weight business logic handlers to lightweight clients composing content receivedfrom back-end servers.

This paper focuses on multi-tier web site development scenarios utilizing suchlightweight front-ends, supported by one or more layers o f heavy-weight back-ends.Thisassumption is reasonable when considering Service-Oriented environments where PHPscripts are used to implement a "mash-up"of services provided elsewhere, in addition tothe case of simple web sites such as bulletin boards where PHP scripts are just a wrapperto a database. Within the scenarios described in this paper, the dynamic contentgenerator provides client implementation in addition to page composition. It connects tothe back-end server through a network using either standard protocols such as HTTP orapp lication/middleware-spec ific proto co ls.

JSP technology can be considered an alternative to PHP in implementing suchfront-ends.While it is part of the Java Servlet framework,developers typically use JSP toimplement lightweight front-ends.Both PHP and JSP allow developers to write HTMLembedded code. In fact, although there are language inherent differences between PHPand Java, the use ofPHP scripts and JSP files can be very similar.

The objective of the experiments detailed in this paper is to measure theperformance of lightweight front-end dynamic content generation written in PHP and JSPwith popular web servers such as Apache and Lighttpd. This web server architecturescenario involves users who access a web server with pages written in plain static HTML,as well as JSP and PHP scripts which mix scripting language with HTML code. Theconfiguration assumed within the paper is a typical one,where web server software, suchas Apache,distinguishes between pure HTML, JSP,and PHP respectively with suffixes

8

such as .html, .jsp,and.php.HTML code is directly returned to the requesting end-user’sweb browser,where JSP and PHP pages are respectively parsed by the Tomcat scriptengine and the PHP runtime engine which both provide pure HTML which is forwardedto the end-user on a remote system.A common point between JSP and PHP is thatimplementations which perform well have a dynamically compiled and cached byte code.For example, the Java runtime used by the Tomcat script engine which we used performsmuch better when the Just-in-Time (JIT) compiler is enabled to create efficient cachednative runtime code. Similarly, the Zend PHP runtime we used also performssignificantly better when the Alternative PHP Cache (APC) is enabled, in which APCstores PHP byte codes compiled from the script source code in shared memory for futurere us e.

3 Language Runtime Performance Micro Benchmarking

To understand the difference in performance characteristics between PHP and Javaat the language runtime levelwe compared the following engines using a series of microbenchmark te sts:

-PHP 4.4.7

-PHP 5.2.3

-Java 5 with Just-In-Time(JIT)compilation(IBM J9 VM 1.5.0 Build 2.3)

-Java 5 without Just-In-Time(JIT)compilation(same as above)

The PHP language framework allows developers to extend the language with libraryfunctions written in C. These functions,which are known as "extensions", are thenavailable to be used within PHP scripts. The PHP runtime provides a variety ofextensions for string manipulation, file handling,networking,and so forth.S ince our firstgoal was to understand the performance of the PHP runtime itself,we conducted ourexperiments without the use of extensions.We developed the following microbenc hmarks:

-A quick sort benchmark which sorts 100 integers,

-A Levenshtein benchmark which measures the similarity between two strings of 56charac ter s,

-AFibonacci benchmark which calculates the 15th value in a Fibonacci series withtwo arb itrary starting values.

These PHP benchmarks were implemented entirely with PHP language primitivesand avoided the use of PHP extensions. The Java versions also focused on usinglanguage primitives rather than standard classes.We compared the total run time of

9

捷锐数据399/年、60元/季 ,香港CN2云服务器 4H4G10M

捷锐数据官网商家介绍捷锐数据怎么样?捷锐数据好不好?捷锐数据是成立于2018年一家国人IDC商家,早期其主营虚拟主机CDN,现在主要有香港云服、国内物理机、腾讯轻量云代理、阿里轻量云代理,自营香港为CN2+BGP线路,采用KVM虚拟化而且单IP提供10G流量清洗并且免费配备天机盾可达到屏蔽UDP以及无视CC效果。这次捷锐数据给大家带来的活动是香港云促销,总共放量40台点击进入捷锐数据官网优惠活动内...

Linode 18周年庆典活动 不断改进产品结构和体验

今天早上相比很多网友和一样收到来自Linode的庆祝18周年的邮件信息。和往年一样,他们会回顾在过去一年中的成绩,以及在未来准备改进的地方。虽然目前Linode商家没有提供以前JP1优化线路的机房,但是人家一直跟随自己的脚步在走,确实在云服务器市场上有自己的立足之地。我们看看过去一年中Linode的成就:第一、承诺投入 100,000 美元来帮助具有社会意识的非营利组织,促进有价值的革新。第二、发...

AlphaVPS(€3.99/月)VPS年付15欧,AMD EYPC+NVMe系列起

AlphaVPS是一家保加利亚本土主机商(DA International Group Ltd),提供VPS主机及独立服务器租用等,数据中心包括美国(洛杉矶/纽约)、德国、英国和保加利亚等,公司办公地点跟他们提供的保加利亚数据中心在一栋楼内,自有硬件,提供IPv4+IPv6,支持PayPal或者信用卡等方式付款。商家提供的大硬盘VPS主机,提供128GB-2TB磁盘,最低年付15欧元起,也可以选择...

jsp服务器为你推荐
http://www.tutorialspoint.com/css/css_dimension.htmdominavimasios7尺寸(mm)操作區域手控勒索病毒win7补丁为了防勒索病毒,装了kb4012212补丁,但出现关机蓝屏的问题了,开机正常win7telnet怎样在win7下打开telnet 命令firefoxflash插件火狐浏览器怎么安装flash杀毒软件免费下载2013排行榜杀毒软件排行榜2015有哪些?chrome18怎么关闭chrome的自动更新,稳定版要18了,mactype要悲剧了appletv越狱apple tv越狱后能干什么?div居中div 中怎么居中
长春域名注册 深圳主机租用 主机点评 tna官网 天翼云盘 ca187 国外在线代理服务器 游戏服务器出租 登陆qq空间 万网注册 美国十大啦 so域名 hosts文件 asp.net虚拟主机 木马检测 linuxvi命令 nano winscpiphone 国内免备案空间 免费论坛空间 更多