rusanoph

At the start of my career the most frequent "pattern" of OOM was like "oh... I forgot to put here if clause to stop while true loop" :D

Also, thanks for sources!

You're right, I misread the results. But by the way, it seems additional overhead also arises from building entity models in memory and initializing other heavy classes, such as EntityManagerFactory.

It seems to me that the experiment would be more clear-cut if you tried using only standard libraries instead of frameworks when developing the applications, since the chosen framework is what accounts for the bulk of the overhead. For instance, if you used Java's HttpServer and the standard networking library - or a similar approach in PHP - I think they would yield better results.

I expected JDBC to have a smaller memory footprint, but the startup time difference is quite substantial. I noticed the experiment record linked at the bottom. Does it also include the complete source code for both application variants?