> If any of you can provide pointers to any resources that compare > implementing interactive web content with mod-perl to writing CGI in C and > / or writing Apache modules in C as far as performance under high load is > concerned, it would really help me out. I have a client who is very happy > with something I've done, and a client's investor who is blowing a gasket > because of the opinion that using mod_perl is a completely psychotic choice > for a website that is going to experience high traffic. I'm in the process > of defending my choices right now, and a little extra ammunition would be > useful.
C will always be able to outperform mod_perl. However, so much depends on the algorithms and design of each system that you'd be wise to simply write tests that subject the site to massive loads. That way you can say "we've tested it, and it delivers pages in under one second with up to 50 simultaneous queries. That translates to 3,000 hits per minute." That'll give data for an intelligent decision on whether to rewrite in C. There are also load-balancing solutions that let you add hardware to get better performance. The mod_perl guide talks about those. Nat
