gocrazy
Systems explained until they click.
Sharp engineering deep-dives — runtimes, latency, and the machinery under your services.
Featured
Why gocrazy: cut through folklore until the system’s real behavior is obvious — then write the next note.
- Cache stampedes without the folklore Why a cold key can melt a backend — and the boring patterns that keep thundering herds from forming.
- Escape analysis without the folklore What the compiler actually decides when a value lives on the stack vs the heap — and how to read the evidence.
- How schedulers wake sleeping work A practical look at runqueues, parking, and why latency spikes hide in "idle" systems.
- Token budgets with a four-character rule of thumb Why packing context often divides length by four — what that approximation buys you, and where it quietly lies.
- Ranking agent memories without a neural scorer How a small composite score — kind weights, stored relevance, keyword overlap, capped access — picks what fits a task budget.
- Mining file paths from free-form text How a small regex loop turns prose into path-like strings — with dedupe, length gates, and a hard cap of ten.