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Why PS4 downloads are so slow
PS4 downloads have a reputation of being very slow. I did some digging to find out the root cause, and was surprised.
Juho Snellman
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Visit snellman.net → On Hacker News Sep 2015 – Jun 2025
Systems & Performance 5Software Engineering 5Networking & Internet 2Infrastructure & DevOps 2Math & Algorithms 1Life, Learning & Writing 1
2
The most obsolete infrastructure money could buy – my worst job ever
A trip deep into a retrocomputing jungle.
3
I've been writing ring buffers wrong all these years
So there I was, implementing a one element ring buffer. Which, I'm sure you'll agree, is a perfectly reasonable data structure.
4
LLMs are cheap
A lot of people think LLMs are expensive to operate. That was true a couple of years ago, but these people haven't updated their views after an approximately 1000x reduction in prices over two years.
5
Hanging S3 downloads
Large downloads work from all other servers, but fail from S3. Must be a problem on their end, right?
6
The origins of XXX as FIXME
In which I go digging into source archives from 40-50 years ago, to figure out why we use XXX to mark dodgy code.
7
Unit testing a TCP stack (2015)
Thoughts on how to write automated tests for a TCP implementation.
8
Optimizing a breadth-first search
Optimizing a breadth-first search of an implicit graph for secondary storage, and memory use in general.
9
A monorepo misconception – atomic cross-project commits
Are cross-project changes in a single atomic commit the key advantage of monorepos? I do not think so.
10
The hidden cost of QUIC and TOU (2016)
Some new proposed protocols will encrypt the transport layer headers. Encryption is good, so more encryption must be better, right? Unfortunately there's going to be a huge hidden cost that'll be paid by anyone troubleshooting networking problems.