php5.5／php7／swoole／openresty 压测性能对比
本次压测仅比较hello world，均为同一机器配置:单核i5-5287U CPU @ 2.90GHz
+1G内存，php-fpm和swoole应用服务器均启用了4个进程，php7开启 opcache, php5.5未开启，压测参考：
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ab -n1000 -c100 |
php5.5：
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[root@vagrant-centos64 nginx]# ab -n1000 -c100 http://192.168.33.10/index.php Server Software: nginx/1.0.15 Server Hostname: 192.168.33.10 Server Port: 80 Document Path: /index.php Document Length: 11 bytes Concurrency Level: 100 Time taken for tests: 1.157 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 182000 bytes HTML transferred: 11000 bytes Requests per second: 864.41 [#/sec] (mean) Time per request: 115.685 [ms] (mean) Time per request: 1.157 [ms] (mean, across all concurrent requests) Transfer rate: 153.64 [Kbytes/sec] received |
php7：
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[root@bogon conf]# ab -n1000 -c100 http://192.168.33.11/index.php Server Software: nginx/1.11.1 Server Hostname: 192.168.33.11 Server Port: 80 Document Path: /index.php Document Length: 11 bytes Concurrency Level: 100 Time taken for tests: 0.583 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 173000 bytes HTML transferred: 11000 bytes Requests per second: 1715.17 [#/sec] (mean) Time per request: 58.303 [ms] (mean) Time per request: 0.583 [ms] (mean, across all concurrent requests) Transfer rate: 289.77 [Kbytes/sec] received |
swoole：
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[root@vagrant-centos64 nginx]# ab -n1000 -c100 http://192.168.33.10:9930/ Server Software: swoole-http-server Server Hostname: 192.168.33.10 Server Port: 9930 Document Path: / Document Length: 28 bytes Concurrency Level: 100 Time taken for tests: 0.132 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 191000 bytes HTML transferred: 28000 bytes Requests per second: 7550.65 [#/sec] (mean) Time per request: 13.244 [ms] (mean) Time per request: 0.132 [ms] (mean, across all concurrent requests) Transfer rate: 1408.37 [Kbytes/sec] received |
openresty：
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[root@bogon conf]# ab -n1000 -c100 http://192.168.33.20:3302/lua Server Software: openresty/1.9.15.1 Server Hostname: 192.168.33.20 Server Port: 3302 Document Path: /lua Document Length: 135 bytes Concurrency Level: 100 Time taken for tests: 0.094 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 299598 bytes HTML transferred: 135270 bytes Requests per second: 10629.36 [#/sec] (mean) Time per request: 9.408 [ms] (mean) Time per request: 0.094 [ms] (mean, across all concurrent requests) Transfer rate: 3109.90 [Kbytes/sec] received |
结果分析：
1） php7.x比php5.x性能提升接近一倍，据第三方测评，php7.x比 HHVM还高，且更为显著的减少内存使用。这边仅启用了opcache，还没按照让PHP7达到最高性能的几个Tips来做到性能最大化。
2）Nginx和Swoole都是使用epoll/kqueue作为事件轮询机制的，且都是多线程Reactor的，但Swoole中的PHP代码需要编译为opcode来执行，每条opcode都是一次函数调用。语言的执行效率效率比C语言（Nginx）差。
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