Re: High performance function autoloading

From: Date: Mon, 20 May 2019 18:42:55 +0000
Subject: Re: High performance function autoloading
References: 1 2  Groups: php.internals 
Request: Send a blank email to internals+get-105760@lists.php.net to get a copy of this message
On Mon, May 20, 2019 at 1:00 PM Gabriel O <gadelat@gmail.com> wrote: > > Every time function autoloading been brought up in the past, there > > have been concerns about performance issues when calling a global > > function from inside a namespace. E.g. calling strlen in a > > loop > > would become far slower if every call has to trigger the autoloader. > > This trick for perf improvement is overblown. It's misconception that it > does provide speed advantage for most functions and reasons behind it. It > does so only for those implemented as opcodes. People started to abuse it > by importing ALL functions. Such overzealous approach completely prevents > useful things like function mocking. Can you clarify? I'm not sure what performance improvement trick you are referring to, or what you mean by "importing all functions". Are you saying it's a misconception that triggering an autoloader on unqualified function calls in a namespace will slow down performance? As I understand it, this is the roadblock for function autoloading. Best regards, Theodore

« previous php.internals (#105760) next »