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The problem that I see with this paper is that it does not address congestion at all which is very hard to do with RoCE. The NIC congestion control algorithm is very simple and is not able to deal with congestion resulting from multiple flows colliding.
Carmack is not your standard study sample.
At my uni this is a course in the first semester, called introduction to operating systems, covering command line, git, encryption, bash and all that. It's pretty good for second year student that are TA's because it's quite some infrastructure needed to teach the labs(containers, configuring vms, custom autograders) so
To be honest golang is amazing for dbs.
Excel at what? You need to build a strong foundation in order to innovate and to discover new stuff.