This documentation is not using the current rendering mechanism and is probably outdated. The extension maintainer should switch to the new system. Details on how to use the rendering mechanism can be found here.
nr_perfanalysis is a TYPO3 extension that collects and displays
frontend rendering timing and quantity information.
It displays the summary at the bottom right of the frontend pages:
By enabling the extension, the frontend performance bar is automatically shown whenever a TYPO3 page is generated.
Clicking on the bar hides it.
Your own extensions can collect statistical data, too.
Start an event:
$statCounter = Netresearch\NrPerfanalysis\Counter::get(); $statCounter->start('REST', 'PUT');
Finish it off:
$statCounter = Netresearch\NrPerfanalysis\Counter::get(); $statCounter->finish('REST', 'PUT');
Now you logged a "PUT" event in the "REST" group, and the REST group will show up in the statistics on the bottom right.