Significant increase in RAM usage

[rodendron]

Hi everyone. After the latest update, I’ve noticed the following issue with RAM usage on my (powerful) server — see the attached screenshot.

As soon as I run a PHP script, the average RAM usage jumps from 6% to 56%, and it stays that way until I either reboot the server or enough time passes.

I’m connecting the PHAR file like this:
include 'madeline.php';

or
require_once 'madeline-8.6.0.phar';

I also tried downloading madeline81.phar from GitHub, but when the script runs, it spends about 40 seconds just starting up.

Could you please tell me if there’s a way to forcibly unload the Madeline PHAR from PHP’s active processes?
(I’ve tested both under Apache and as CGI.)
Ideally, I’d like the memory to be used only during the 1–2 minutes that the script actually runs.

Installing previous versions doesn’t work, since only madeline81 files are available, and they take too long to load — unlike the ones generated by madeline.php.