looked up what the hell a persistent http session is doing with those resources it allocated
https://en.wikipedia.org/wiki/HTTP_persistent_connection

Under HTTP 1.0, connections should always be closed by the server after sending the response.[1]

i fucking knew it this shit again

Since at least late 1995,[2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.[3][4]

[4] is literally just paywalled and shouldn't be on wikipedia. [3] is good but doesn't say anything about the motivation. [2] is the google groups usenet archive https://groups.google.com/g/comp.infosystems.www.authoring.cgi/c/hGxfGUtAX8M