我有一个运行 Apache（prefork mpm）的 VPS，配备 1gb RAM 和 2 x Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz。
我设置了 2 个测试文件来通过 Apache Benchmark 运行：htmltest.html（仅显示一些文本的基本 HTML 文件）phptest.php（一个完全空白的 php 文件）
我对每个测试运行了以下 Apache Benchmark 命令：ab -k -n 1000 -c 70 THE-TEST-URL
结果是：
html测试.html
Concurrency Level: 70
Time taken for tests: 5.374 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Keep-Alive requests: 992
Total transferred: 374658 bytes
HTML transferred: 134000 bytes
Requests per second: 186.10 [#/sec] (mean)
Time per request: 376.145 [ms] (mean)
Time per request: 5.374 [ms] (mean, across all concurrent requests)
Transfer rate: 68.09 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 1 5.5 0 48
Processing: 17 94 454.3 50 5173
Waiting: 17 93 454.3 50 5173
Total: 17 94 458.8 50 5221
php测试.php
Concurrency Level: 70
Time taken for tests: 125.159 seconds
Complete requests: 1000
Failed requests: 0
Write errors: 0
Keep-Alive requests: 997
Total transferred: 196815 bytes
HTML transferred: 0 bytes
Requests per second: 7.99 [#/sec] (mean)
Time per request: 8761.120 [ms] (mean)
Time per request: 125.159 [ms] (mean, across all concurrent requests)
Transfer rate: 1.54 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 4.0 0 58
Processing: 1003 1244 84.7 1235 2953
Waiting: 997 1244 84.9 1235 2953
Total: 1029 1244 85.8 1235 3012
这里肯定出了问题，因为 HTML 文件只花了 5 秒就完成了测试，而空白 PHP 文件却花了整整 2 分钟才完成完全相同的测试。
是否有一个特定的配置文件我应该查看来解决这里的问题？