Great example of using probability to trade exactness for huge memory wins.
Cloudflare's global network is immense but not limitless. As we look for small ways to trim our resource usage, we sometimes get lucky and we can cut significantly more. Here's how we reduced one of our Pingora-based service's RAM usage with statistics.
An interactive 3D Redis visualization, from command parsing and key lookup to the allocator, memory pages, RDB, and AOF.
Five Rust-level memory optimizations to the DNS cache layout of Big Pineapple cut per-entry memory by 56%, freeing approximately 100 TB of memory across Cloudflare's fleet.
Probably one of the most interesting posts I’ve read in a while. Written by someone who worked at GitHub for 10 years, it covers how GitHub works and how they’re using S3 to build Origin.
How a missing Firestore security rule on tl;dv exposed 181,874 meetings from 84,312 users across 35,003 domains, including live calls I could join uninvited, and how six months of disclosure got me nothing but seen receipts.
Turso is becoming the LLVM of databases: one modern, reliable Rust core with many SQL frontends. After rewriting SQLite, we are now building Postgres.
How to make 768 distinct Postgres servers look like 1 to your applications.
Why & how we rewrote Bun from Zig to Rust
This year, British Column has moved to year-round Pacific Time. How does that affect date data?
DeepSWE measures frontier coding agents on original, long-horizon software engineering tasks.
Settling for good enough is not good enough.
Mac OS X 10.0 (Cheetah) running natively on the Nintendo Wii
How Replit turns any web page into a deterministic video by virtualizing time itself, patching key browser audio APIs, and waging war against headless Chrome's quirks.
An audio enhancement a Game Boy Advance emulator can implement to reduce aliasing and noise, by replacing the hardware's nearest-neighbor resampling with better interpolation.
An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation.
Thanks HN folks for all the comments. To clarify a bit, the cables are pulled through PVC conduits under the flooring before being buried in cement. Currently the hypothesis for why the cable disintegrated so quickly is hydrolysis. Singapore is extremely humid after all. A second possibility is that I keep the leftover wall paints (Nippon Paint Vinilex 5000) in the same room and have noticed that…
An indirect prompt injection in an implementation blog can manipulate Antigravity to invoke a malicious browser subagent in order to steal credentials and sensitive code from a user’s IDE.
As an respectable unemployed person must do, I tried to make Postgres as slow as possible
Covers a bit of how ClickHouse’s MergeTree engine works.
Dive into how Postgres-to-ClickHouse replication works, and learn best practices for data deduplication, custom ordering keys, optimizing JOINs, denormalization, and more.