Performance .htaccess mod_重写性能

我在SOF上搜索了很多关于.htaccess和mod_rewrite的内容，我想从性能角度看哪一个更快：

RewriteRule ^([a-z0-9]+)/?$ index.php?id=$1 [NC,L]
RewriteRule ^(.*)/?$ index.php?id=$1 [NC,L]
RewriteRule ^([^/]*)/?$ index.php?id=$1 [NC,L]

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因为第一个只接受字母和数字，所以执行起来更快吗

如果有疑问，请进行测试。我用Apache2安装了一个运行Ubuntu2011.10的测试服务器，并使用Sakege负载测试应用程序执行了3个测试。测试运行了1分钟（或直到5000次失败），有50个并发用户请求“/index.html”

测试#1使用了以下重写规则配置：

RewriteEngine on
RewriteRule ^([a-z0-9]+)/?$ /index.html?id=$1 [NC,L]

RewriteEngine on
RewriteRule ^(.*)/?$ /index.html?id=$1 [NC,L]

围攻的结果是：

Transactions:                 300970 hits
Availability:                  98.36 %
Elapsed time:                  57.25 secs
Data transferred:              20.38 MB
Response time:                  0.00 secs
Transaction rate:            5257.12 trans/sec
Throughput:                     0.36 MB/sec
Concurrency:                    9.04
Successful transactions:      300970
Failed transactions:            5009
Longest transaction:            0.02
Shortest transaction:           0.00

使用重写规则配置测试#2：

RewriteEngine on
RewriteRule ^([a-z0-9]+)/?$ /index.html?id=$1 [NC,L]

RewriteEngine on
RewriteRule ^(.*)/?$ /index.html?id=$1 [NC,L]

结果是：

Transactions:                 225244 hits
Availability:                  97.82 %
Elapsed time:                  42.43 secs
Data transferred:              15.25 MB
Response time:                  0.00 secs
Transaction rate:            5308.60 trans/sec
Throughput:                     0.36 MB/sec
Concurrency:                    8.71
Successful transactions:      225244
Failed transactions:            5009
Longest transaction:            0.18
Shortest transaction:           0.00

Transactions:                 210469 hits
Availability:                  97.68 %
Elapsed time:                  39.39 secs
Data transferred:              14.25 MB
Response time:                  0.00 secs
Transaction rate:            5343.21 trans/sec
Throughput:                     0.36 MB/sec
Concurrency:                    8.60
Successful transactions:      210469
Failed transactions:            5009
Longest transaction:            0.02
Shortest transaction:           0.00

使用以下重写规则测试#3：

RewriteEngine on
RewriteRule ^([^/]*)/?$ /index.html?id=$1 [NC,L]

结果是：

Transactions:                 225244 hits
Availability:                  97.82 %
Elapsed time:                  42.43 secs
Data transferred:              15.25 MB
Response time:                  0.00 secs
Transaction rate:            5308.60 trans/sec
Throughput:                     0.36 MB/sec
Concurrency:                    8.71
Successful transactions:      225244
Failed transactions:            5009
Longest transaction:            0.18
Shortest transaction:           0.00

Transactions:                 210469 hits
Availability:                  97.68 %
Elapsed time:                  39.39 secs
Data transferred:              14.25 MB
Response time:                  0.00 secs
Transaction rate:            5343.21 trans/sec
Throughput:                     0.36 MB/sec
Concurrency:                    8.60
Successful transactions:      210469
Failed transactions:            5009
Longest transaction:            0.02
Shortest transaction:           0.00

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抱歉，但IMHO Jason的回答表明他不理解基准测试的一些基本原理。传播速度非常明显，[a-z0-9]比其他两个（非常接近）快，分别为225244和5308t/s，点击次数为300000次和5272t/s。很不错的！谢谢你，但是你的整个方法是-1。查看我的对位回答。+1，尽管我不确定

IMHO

中的

H

代表什么。也许你可以解释一下“谦逊”但我在一篇帖子后被某人狠狠地骂了一顿--“你听起来一点也不谦逊”，所以我现在倾向于坚持IMO；-？