VPC
32 cpus，8G ram，SSD
linux 环境是centos 7
apache 2.4 yum安装base库
php 5.4 yum安装base库
php-fpm 5.4 yum安装base库
nginx 1.10 yum安装epel库
windows 环境是 windows server 2012R2
apache 2.4
php 5.5
IIS 8.5 PHP（NTS） 5.5
测试phpinfo，
<?php phpinfo();?>
ab压力测试，32线程，共1024000个链接，性能对比如下
linux apache php
Concurrency Level: 32
Time taken for tests: 122.010 seconds
Complete requests: 1024000
Failed requests: 102711
(Connect: 0, Receive: 0, Length: 102711, Exceptions: 0)
Write errors: 0
Total transferred: 42976140870 bytes
HTML transferred: 42788748870 bytes
Requests per second: 8392.73 [#/sec] (mean)
Time per request: 3.813 [ms] (mean)
Time per request: 0.119 [ms] (mean, across all concurrent requests)
Transfer rate: 343978.17 [Kbytes/sec] received
linux nginx php-fpm
Concurrency Level: 32
Time taken for tests: 130.657 seconds
Complete requests: 1024000
Failed requests: 104256
(Connect: 0, Receive: 0, Length: 104256, Exceptions: 0)
Write errors: 0
Total transferred: 38909836092 bytes
HTML transferred: 38758284092 bytes
Requests per second: 7837.32 [#/sec] (mean)
Time per request: 4.083 [ms] (mean)
Time per request: 0.128 [ms] (mean, across all concurrent requests)
Transfer rate: 290821.98 [Kbytes/sec] received
windows apache php
Concurrency Level: 32
Time taken for tests: 280.478 seconds
Complete requests: 1024000
Failed requests: 105718
(Connect: 0, Receive: 0, Length: 105718, Exceptions: 0)
Write errors: 0
Total transferred: 85580685230 bytes
HTML transferred: 85461901230 bytes
Requests per second: 3650.91 [#/sec] (mean)
Time per request: 8.765 [ms] (mean)
Time per request: 0.274 [ms] (mean, across all concurrent requests)
Transfer rate: 297973.35 [Kbytes/sec] received
windows IIS php
Concurrency Level: 32
Time taken for tests: 320.750 seconds
Complete requests: 1024000
Failed requests: 102941
(Connect: 0, Receive: 0, Length: 102941, Exceptions: 0)
Write errors: 0
Total transferred: 80454541633 bytes
HTML transferred: 80274317633 bytes
Requests per second: 3192.51 [#/sec] (mean)
Time per request: 10.023 [ms] (mean)
Time per request: 0.313 [ms] (mean, across all concurrent requests)
Transfer rate: 244953.39 [Kbytes/sec] received
在都是默认配置的情况下，linux性能确实好很多，apache能跑到每秒8392次响应，但nginx没有想象中性能高，只有每秒7837次响应，可能是没有优化好。windows apache 有3650次响应，IIS 垫底，只有每秒3192次响应。
但不要忘记以上都是没有优化过的测试，像IIS，配合WinCache Extension for PHP，每秒响应能跑到1W以上，微软大法好。