May sound overwhelm but it’s very approachable with step by step building from previous foundation. Eg to write the initial boot loader you just need: loop: jmp loop

times 510-($-$$) db 0 dw 0xaa55

A very detail setup so you can prepare emulator to start learning these.

Every time you use a computer, caches work to ensure your experience is fast. Everything a computer does from executing an instruction on the CPU, to requesting your X.com feed, to loading this very webpage, relies heavily on caching. You are about to enjoy a guided, interactive tour of caching: the most elegant, powerful, and pervasive innovation in computing.

A visual introduction to big O notation.

This post is an introduction to consistent hashing, an algorithm for designing a hash table such that only a small portion of keys has to be recomputed when the table’s size changes.

By default all of the Postgres data stay in the same directory, under the same path and therefore the same volume. This limit our scale, many cloud provider has a max volume size, and they all share same IO. What can we do to put the database at different location instead?

Be careful out there with sophisicated phishing attempt nowadays. Bottom line is never ever run untrusted code directly on your machine.

Maybe you’re debugging a network request, but the stack trace has been laundered away by a batching mechanism. Maybe you have an enormous React codebase with kilometers of prop drilling, and you can’t be bothered to hit Go To References all morning. In any case, sometimes you just wish you could see where that specific object in the debugger was created.

Once you get into the business of starting threads, you’re probably also in the business of stopping them. However the former is much easier than the latter. With “stopping” I mean stopping the thread while giving it a chance to run some cleanup operations before fully terminating. Or in other words, we want to terminate a thread while ensuring that memory is freed, locks are released, logs are flushed, and so on