关于PHP7.0与PHP5.6下Laravel博客应用性能对比分析详解

概述目前我安装的 Homestead 虚拟机版本是 2.1.8： 该版本 Homestead 上预装的 PHP 版本是 5.6.15： 我们使用 ab 命令（Apache 提供的性能测试工具）在该版本中测 目前我安装的 Homestead 虚拟机版本是 2.1.8：该版本 Homestead 上预装的 PHP 版本是 5.6.15：我们使用 ab 命令（Apache 提供的性能测试工具）在该版本中测试 Laravel 应用（以目前正在讲的使用Laravel开发的博客应用为例）性能，我们模拟 10000 次请求，100 个并发进行压力测试：

ab -n 10000 -c 100 http://blog.app/

　　

运行结果如下：

This is ApacheBench,Version 2.3 copyright 1996 Adam Twiss,Zeus Technology Ltd,http://www.zeustech.net/licensed to The Apache Software Foundation,http://www.apache.org/ Benchmarking blog.app (be patIEnt)Completed 1000 requestsCompleted 2000 requestsCompleted 3000 requestsCompleted 4000 requestsCompleted 5000 requestsCompleted 6000 requestsCompleted 7000 requestsCompleted 8000 requestsCompleted 9000 requestsCompleted 10000 requestsFinished 10000 requestsServer Software: Nginx/1.8.0Server Hostname: blog.appServer Port: 80 document Path: /document Length: 324 bytes Concurrency Level: 100Time taken for tests: 69.354 secondsComplete requests: 10000Failed requests: 0Total transferred: 19851388 bytesHTML transferred: 10230000 bytesRequests per second: 144.19 [#/sec] (mean)Time per request: 693.545 [ms] (mean)Time per request: 6.935 [ms] (mean,across all concurrent requests)Transfer rate: 279.52 [Kbytes/sec] received Connection Times (ms)                  min  mean[+/-sd]  median  maxConnect:       0       0     0.2                 0      3Processing: 17    684   319.1           588   2720Waiting:      17     684   319.1           588   2720Total:          20     684   319.1           588   2720 Percentage of the requests served within a certain time (ms) 50%      588 66%      695 75%      842 80%      933 90%    1155 95%    1321 98%    1545 99%    1813 100%  2720 (longest request)

　　

这里我们要关注的是红色加粗的文字，即每秒处理请求数，这是衡量系统性能的关键指标。根据系统及硬件配置的差异，数据会有些出入。现在我们按照“Laravel Homestead 支持 PHP 7 ”这一节所述将 Homestead 中的 PHP 升级到 7.0 版本。使用 vagrant ssh 登录到新添加的 homestead-7 虚拟机，查看 PHP 版本信息是否正确：此时在浏览器中访问 http://blog.app 会报错，因为新安装的 Homestead 数据库数据为空，需要登录到虚拟机运行如下命令运行迁移并填充数据：

PHP artisan migrate PHP artisan db:seed

　　

再次访问就OK了，好了我们继续使用同样的 ab 命令进行压力测试：

ab -n 10000 -c 100 http://blog.app/ 

　　

运行结果如下：

This is ApacheBench,Version 2.3 copyright 1996 Adam Twiss,http://www.zeustech.net/licensed to The Apache Software Foundation,http://www.apache.org/ Benchmarking blog.app (be patIEnt)Completed 1000 requestsCompleted 2000 requestsCompleted 3000 requestsCompleted 4000 requestsCompleted 5000 requestsCompleted 6000 requestsCompleted 7000 requestsCompleted 8000 requestsCompleted 9000 requestsCompleted 10000 requestsFinished 10000 requestsServer Software: Nginx/1.8.0Server Hostname: blog.appServer Port: 80 document Path: /document Length: 324 bytes Concurrency Level: 100Time taken for tests: 45.032 secondsComplete requests: 10000Failed requests: 0Total transferred: 20101202 bytesHTML transferred: 10230000 bytesRequests per second: 222.06 [#/sec] (mean)Time per request: 450.319 [ms] (mean)Time per request: 4.503 [ms] (mean,across all concurrent requests)Transfer rate: 435.91 [Kbytes/sec] received Connection Times (ms) min  mean[+/-sd]  median   maxConnect:       0       0     0.2                 0       4Processing: 11    443   252.8           379   1978Waiting:      11     443   252.8           379   1978Total:          15     443   252.8           379   1978 Percentage of the requests served within a certain time (ms) 50%      379 66%      517 75%      590 80%      631 90%      795 95%      938 98%    1060 99%    1229 100%  1978 (longest request)

　　

经过对比，同一个 Laravel 应用在 PHP 7.0 下的性能比 PHP 5.6 提高了54%，这是一个很显著的性能提升，当然环境不同数据会有所出入，而且还有更大的提升空间。

 

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