Hi internals, I've recently found out that compiling PHP with --with-mm has a massive negative impact on PHP startup performance (approximately 3-4 times slower), to the point that our CI got approximately 2x slower overall with it enabled. This is not great.
As I only found out about the existence of this session backend recently, I'm wondering how widely it is used, and whether we wouldn't be better off dropping it from php-src. The performance characteristics make it a pretty big foot-gun. Regards, Nikita
