Maybe worth pointing out the original interview (it is in a follow up tweet as well) and the blog posts that lead to it. There are so many more details.

I especially love the improvements that Vignesh and his team made to pgBouncer. Being able to modify the number of connections dynamically is super useful. And I still hope that Vignesh and team will implement the auto-tuning idea he shared at the end of the blog.

Video: https://youtu.be/DvblO-f2bqQ

The blog: https://blog.cloudflare.com/performance-isolation-in-a-multi...

The Scale presentation: https://www.socallinuxexpo.org/scale/20x/presentations/chall...