Fw: (is servlet really faster?) Php Vs Servlet, unexpected result, why?

[Alvin, lau]

hi,   I wrote a page with php and servlet and tried to compare their performance. I tried all the methods (using connection pool, even cache the whole page),  to improve to the performance of servlet, but it still slower than php. I read a lot of articals about servlet, and they all say that servlet is faster than cgi. Can anyone tell me why?   ps:I cannot post the source code here,  exceeds 300 lines. check out my page for more detail. http://achilles.stachanov.com/~alvin/lab/phpvsservlet/ ( I put all the source code there).   result (tested with suse linux 6.1, blackdown jdk1.1.7, jserv 1.0b5, mysql, mm jdbc driver , php3 and jmeter(random delay with gaussian distribution, average delay=300, dalay deviation=100.0)): 1, just display a date:        php->average 175 ms, servlet->average  178 ms   2, Get data from mysql and format a new page:    php->average 175 ms, servlet->average  241 ms (why average time of php does change?????)   3, Using Connectionpool, servlet->average 232 ms servlet (Use StringBuffer first, and then pw.println(buffer.toString())->average 220 ms servlet (cache the whole page) -> servlet 185   4, change the no of threads in JMeter to 20, php->average 190 ms, servlet->average  546 ms .....Why?????   What wrong? Anyone did this type of test before? Is it the problem of jdk, jserv or.....? How can I improve the preformance? If I have to use linux, is that mean I better use php? Php is easy to use and runs faster.   alvin