lighttpd vs apache2

well, after my tests yesterday, I was looking arond the web and I've ran into lighttpd and decided to give it a chance. Thanks to portage installation was just a command away and my htdocs just worked right away, which means I've shut apache down and started the lighttpd server and everything was the same (except for the regular cgi-bin directory). With this setup, we have the chance to compare Apache 2 and lighttpd 1.4.7 performances on static and PHP pages. The results are as follows;

 Apache 2lighttpd 1.4.7
Static page1000-13001800-2700
PHP5 script5668
unit: requests/second

We also notice that PHP5 is slightly slower than PHP4 in this context. The previous test was done with PHP 4 and Apache 2 gave around 59 req/sec but PHP 5 and Apache 2 gives 56.