PostgreSQL reconsiders its process-based model
lwn.net
lwn.net
(Looks like the URLs were different but the article is the same. The other URL was https://lwn.net/SubscriberLink/934940/3abb2d4086680b78/)
Processes -> Threads is the same improvement that Nginx had over Apache, and its pretty clear that Nginx is the preferred web server these days. Also, Nginx's configuration system is much better, so it's hard to say why they have won out so clearly