Non-blocking Mojolicious applications have the potential to scale to thousands of concurrent connections.

However, most operating systems are not configured to handle that sort of work out-of-the-box. This page details some of the tweaks your server will likely need before it can successfully handle very high concurrent loads. Note that if any part of your application blocks, much of this advice is premature optimization or even irrelevant.
Disclaimer

These tuning parameters are not a substitute for a sane load balancing scheme: they will help get the most out of a single server, but any single machine can and will fall over eventually. One benefit of Mojolicious/hypnotoad is that the multi-process model encourages an application architecture that can be easily scaled across servers (horizontally), and any serious application deployment should be doing exactly that.

Unless you are a MySQL performance tuning expert, it can be enormously challenging and somewhat overwhelming to locate and eliminate MySQL bottlenecks. While many DBAs focus on improving the performance of the queries themselves, this post will focus on the highest-impact non-query items: MySQL Server Performance and OS Performance for MySQL.

The following setup procedures and specifications are for your Fender guitar as equipped with the strings that come on the instrument as standard equipment from the factory. If you plan to change string gauges, you may need to adjust the specs somewhat to compensate for the changes in string sizes. Modifications of the specs may also be made (within limited parameters) to adjust for your individual playing style or application (i.e., how hard you pick, strum or fret the guitar).