My understandind is pretty much everything for HN requires IO to disk. The Era of NVME SSDs...
Edit: but we can't GC it fast enough. On a day like today I wonder if always going to disk mightn't be better.
Do you (or anyone else) have an article on HN's infrastructure? Would like to read more about this.
Tried to Google it but was filled with links to other people's infra on HN.