On 2010-06-07 at 17:42, "Akins, Brian" <brian.ak...@turner.com> wrote:
> On 6/7/10 9:16 AM, "Dan Poirier" <poir...@pobox.com> wrote: >> Did you profile httpd? I'm wondering if you had a few non-trivial hooks >> in lua, if it would be a significant part of the CPU consumption, or >> would it be swamped by the rest of the processing that always goes on >> for a request? > > Increasingly, httpd is just there to provide a base to run Lua stuff for us. > You'd be surprised how easily problems get solved with a few if's and else's > instead of mounds of rewrite rules. Not really :-) I'm a huge fan of general-purpose scripting languages whenever possible. > At "normal" load it doesn't really matter - the trade off is worth it > ("speed" vs simplicity). However, as the servers get more and more loaded, > Lua takes a rather large percentage of the CPU. And it's the "Lua stuff" not > the part that does work. The constant string hashing, metatable lookups, > etc. That's a shame. I wonder if another embedded language would do better? E.g. mod_perl, mod_python? They've both been around for a while. I wonder why neither has gotten into the server? Dan