Dmytro

OpCache Monitor and Reset adds a dedicated Tools screen for WordPress administrators to:
<ul>
<li>Inspect OPcache runtime status and key performance metrics.</li>
<li>Review memory usage, restart counters, and JIT status.</li>
<li>Clear OPcache safely via AJAX without leaving wp-admin.</li>
<li>See an automatic admin notice after plugin updates when OPcache is reset.</li>
</ul>
This plugin is designed for environments where PHP OPcache is enabled.

OpCache Monitor and Reset

Clears OPcache automatically on plugin updates and lets admins inspect and clear OPcache from Tools -> OpCache Monitor and Reset.

nikdow

Use this plugin to display detailed information about your server’s OPCache, including memory utilisation, list of all scripts cached and a useful memory utilisation visualisation based on the file system tree.
This plugin is based on https://github.com/rlerdorf/opcache-status which is for general PHP use, we have turned it into a WordPress plugin for ease of installation. Apart from some rearrangement of scripts to suit WP load conventions, the code is to date unaltered. WordPress capability ‘activate_plugins’ is required to see it in the admin menu and to run it.
After you install and activate this plugin, look in the admin Tools menu for OPCache.

OPCache Scripts

Use this plugin to display detailed information about your server’s OPCache, including memory utilisation, and a list of all scripts cached.

OpCache Monitor and Reset vs OPCache Scripts