最近我用Apache Benchmark (ab)对HipHop for PHP进行了基准测试。
我期望HipHop for PHP的结果比普通的apache2 web服务器更快，但事实证明并非如此。
我使用这个脚本来测试服务器：
<?php
$i=0;
while($i < 1000000){
echo 'Welcome to HipHop for PHP<br />';
$i++;
}
?>
我使用ab命令进行基准测试：
ab -n 500 -c 5 [URL]
我使用以下命令进行编译：
hphp/hphp hiphop1.php -k 1 -l 3
Apache2服务器的基准测试结果为：
kiddo@kiddo-VirtualBox:~/dev/hiphop-php/doc$ ab -n 500 -c 5 http://localhost/hiphop1.php
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Finished 500 requests
Server Software: Apache/2.2.16
Server Hostname: localhost
Server Port: 80
Document Path: /hiphop1.php
Document Length: 31000000 bytes
Concurrency Level: 5
Time taken for tests: 71.024 seconds
Complete requests: 500
Failed requests: 0
Write errors: 0
Total transferred: 15500095500 bytes
HTML transferred: 15500000000 bytes
Requests per second: 7.04 [#/sec] (mean)
Time per request: 710.240 [ms] (mean)
Time per request: 142.048 [ms] (mean, across all concurrent requests)
Transfer rate: 213122.37 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.9 0 19
Processing: 505 708 61.1 694 960
Waiting: 0 0 3.3 0 67
Total: 505 708 61.1 695 960
Percentage of the requests served within a certain time (ms)
50% 695
66% 714
75% 729
80% 736
90% 781
95% 857
98% 898
99% 938
100% 960 (longest request)
同时，HipHop for PHP 的基准也在不断提高:
kiddo@kiddo-VirtualBox:~/dev/hiphop-php/doc$ ab -n 500 -c 5 http://localhost:8080/hiphop1.php
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests
Completed 500 requests
Finished 500 requests
Server Software:
Server Hostname: localhost
Server Port: 8080
Document Path: /hiphop1.php
Document Length: 31000000 bytes
Concurrency Level: 5
Time taken for tests: 294.546 seconds
Complete requests: 500
Failed requests: 0
Write errors: 0
Total transferred: 15500052500 bytes
HTML transferred: 15500000000 bytes
Requests per second: 1.70 [#/sec] (mean)
Time per request: 2945.455 [ms] (mean)
Time per request: 589.091 [ms] (mean, across all concurrent requests)
Transfer rate: 51390.26 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 1.6 0 20
Processing: 1515 2941 579.7 2919 4734
Waiting: 1452 2626 532.5 2609 4135
Total: 1515 2941 579.7 2919 4734
Percentage of the requests served within a certain time (ms)
50% 2919
66% 3147
75% 3334
80% 3448
90% 3704
95% 3937
98% 4223
99% 4394
100% 4734 (longest request)
问题是，为什么我的基准测试中HipHop运行速度较慢？脚本测试有问题吗？