Profiling

I mean also the requires()-s.

All right, I’ll add your suggestion to my to-do list. I would bet that the actual performance impact of this plugin is negligible, but it shouldn’t be too hard to only load it in the admin / when running Cron.

Thank you.
20×negligible equals visitors are unsatisfied.

Out of curiosity, do you have profiling results to back that up? For example, by how much does this plugin increase page load time on your site?

The whole plugin is around 0.05 miliseconds!
You get sleepy in 0.05 ms ??

Method: wrapping your plugin in

$t=microtime(true);
...
echo (microtime(true) - $t);