babo2015

This plugin adds a new “Plugins” tab to the site edit screen where you can enable or disable plugins for this website. You may enable/disable one at a time or per bulk action. The site admin will only see plugins that are enabled for his site or for the entire network. He still can decide if he wants to activate it or not.
Finally you’ll be able to install plugins that do not show to every single website in your multisite network!
<h3>Enable/Disable plugins for selected sites</h3>
<ol>
<li>Visit Network Admin > Sites and click on the Edit link of one site.</li>
<li>Select the Plugins tab.</li>
<li>Click on the Enable/Disable link beneath each plugin name to enable/disable it for this site or</li>
<li>Select several plugins by checking the corresponding check boxes or all plugins by checking the checkbox in the table header an choose Enable or Disable form the Bulk actions dropdown menu. Then click Apply.</li>
</ol>
You cannot disable a plugin for a site as long as it is activated there.

Multisite Plugin Controller

Enable plugins for selected blogs only on multisite websites (similar to theme functionality)

nierdz

Flush OPcache
<ul>
<li>creates a button in admin bar to flush OPcache</li>
<li>flush only files in WordPress absolute path</li>
<li>individual or bulk file invalidation</li>
<li>support both memory and file caching</li>
<li>support multisite</li>
</ul>
OPcache Statistics
<ul>
<li>memory, hits, strings and keys statistics</li>
<li>directives, functions and general informations</li>
<li>list all files</li>
<li>fully responsive</li>
</ul>
WP CLI ready
<ul>
<li>add flush-opcache command to flush cache with cli: <code>wp flush-opcache flush</code></li>
<li>don’t forget to add <code>opcache.enable_cli=1</code> to your PHP configuration</li>
</ul>
There are three tabs in admin page under Tools:
<ul>
<li>General settings: plugin settings</li>
<li>Statistics: responsive dashboard about OPcache statistics</li>
<li>Cached files: list of cached files with the possibility of invalidating them</li>
</ul>

WP OPcache

works great

Bast OPCache Manager for WordPress

Manage OPcache inside your WordPress admin dashboard.

Multisite Plugin Controller vs WP OPcache