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HomeBackend DevelopmentPHP Tutorial性能测评:Ngix_Lua, Node.JS Python三者性能相当,均比php快近一倍

之前我们介绍过: 性能测评:Node.JS比Java EE快20% ,  下面我们来比较一下其他几种脚本语言php, lua, python 和 node.js之间的性能:

1. ngx_lua nodejs php 比较

我在研究一阵子ngx_lua之后发现lua语法和js真的很像,同时ngx_lua模型也是单线程的异步的事件驱动的,工作原理和nodejs相同,代码甚至比nodejs的异步回调更好写一些。

性能测试,100并发php:17400nodejs:31197ngx_lua:32628

单纯做http代理服务器加上一些简单的逻辑,似乎ngx_lua的方案更加合适。 引自: PHP vs Node.js vs Nginx-Lua

以下是从占用的资源上来分析:

出自: php node lua 由图中可以看出:

nodejs占用CPU比lua高一些,

nodejs与ngx_lua二者占用内存不变(在处理同一业务逻辑时),php占用内存不稳定(可能跟多线程有关,连接数越多,内存占用越多)

下面猿友对ngix_lua的一些看法:

xueyangkk

其实这样考虑是对的 ! ngx_lua是基于nginx的扩展 nginx已经有无数家验证过 他确实是个可靠的WEB应用。而且ngx_lua 已经有很多广泛的应用 可以说技术上来说已经很成熟了,你们的平台是一个OPANAPI的应用 。所以 在这个上 选ngx_lua 是对的 !当然这并不是说NODE不好 !语言没什么好坏 !只能从成本 技术成熟度来考虑 !

jayceefun

之前使用过章大神openresty, 确实很值得一试, 比node.js易用, 没有那么裸, 做的各种性能优化也都是c级别的, 刚出时也是号称并发超过node.js的. lua确实是很快, 据说是脚本语言里最快的了. 不过也有缺点就是lua的文件处理很弱, 各种库非常的少, 记得当初的想要个好点的orm都没有, 还得手写. 同意楼主说的lua某种程度上真的是跟js很像啊, 当初转型node.js语言上也基本没费多少劲. 推荐一个用lua完全模仿node.js写的一个东西, 叫luvit, 现在完全不成熟, 只有些简单的http server功能, 但是基础的性能测试结果是比node.js快2倍还是4倍来的, 很恐怖啊有木有. 

结论:

并发请求数lua/nodejs相当,均比php快一倍

资源占用上lua最少,nodejs次之,二者对内存并不贪婪,php占用最多且不稳定。

2. nodejs python php 比较

国外某猿友做过一个关于php/nodejs/go/scala/python之间的性能比较: API Programming Language Bake-off

以下测试用例为使用mongodb添加删除数据时,各个语言每秒处理的最大请求数:

由其博文可以看出,在并发线程达到一定程度时go和php写的测试脚本都挂了(go不是号称最快吗?)

另外两位中国猿友的评测,也证明了这一点,

1. 测了一下nodejs和php性能

2. 单服务器node.js和php性能测试

在他们的结论中node.js的并发处理能力均二倍于php.

结论:

在一般情况下lua和node.js的处理能力相当,均2倍于php,甚至lua的性能更好。在并发数达到一定程度时,php可能会挂,可能源于大并发下多线程对内存资源的占用是不可测且不可控的。

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