Re: Reducing the number of system calls for includes
| From: | Rasmus Lerdorf | Date: | Sat, 25 Jan 2003 10:40:23 +0000 |
| Subject: | Re: Reducing the number of system calls for includes | ||
| References: | 1 | Groups: | php.dev |
| Request: | Send a blank email to php-dev+get-93671@lists.php.net to get a copy of this message | ||
> The question here is whether it's worthwhile to optimize for
> the case where you have 30+ includes per page. Is it that
> common?
In my particular case just 2 or 3 includes puts me over the top actually.
stat() is amazingly slow on freebsd and having 3 includes of files in a
directory 8 levels below the root is going to do 27 stat()'s. 27 stats on
my freebsd box here takes 24ms to execute. That's a long time to be
sitting around stat'ing things. And heaven help me if the path is not
absolute and I have to try different include paths. And if open_basedir
is also enabled you might as well go for a coffee while you wait through
some 80+ syscalls for every include.
-Rasmus