The latest blog posts to take off on Hacker News. 2,560 posts.
Fil-C uses a parallel concurrent on-the-fly grey-stack Dijkstra accurate non-moving garbage collector called FUGC (Fil's Unbelievable Garbage Collector). You can find the source code for the collector itself in fugc.c , though be warned, that code cannot possibly work without lots of support logic in the rest of the…
Sourcing data directly from disk IS faster than caching in memory. I brought receipts. Because hardware got wider but not faster, the old methods don't get you there. You need new tools to use what is scaling and avoid what isn't.
This post goes through how to maximize file IO performance on linux using zig with io_uring.
Neural networks are more useful when placed in a suitable, specialized environment.
TL;DR: all the assumptions you have about processor design are wrong and if you are unlucky you will never run into problems that users do through sheer chance.
We have fried two Ryzen 9950X CPUs in a few months by running GMP tests and the GMP-based factoring program GMP-ECM . This is not expected, of course. In this page, we provide as much information as possible to help analysing the problem.
Introduction Readyset is designed to serve queries from cached views with sub-millisecond latency. This post focuses on the cold path—cases where a cache miss forces execution against the base tables. In these scenari...
See how ClickHouse’s update speed stacks up against PostgreSQL on the same data and hardware.
Sharded Postgres by the team behind Vitess
In this blog post, we’ll dive deep into why we chose to build DBOS durable workflow execution on the PostgreSQL DBMS.
Radar offers geocoding, place search, and fraud detection APIs, powered by HorizonDB, a Rust-based engine delivering 20k QPS and sub-millisecond latency.
Latest announcements for Proxmox.
This post explains our recent effort to improve JSON.stringify performance
You log in to a Linux server with a performance issue: what do you check in the first minute?
Linaro Connect 2025 showcases progress in bringing Linux on Snapdragon-Powered Devices
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
Wendelstein 7-X—the leading fusion device of the stellarator type—achieved several new performance milestones during its latest run of experiments. Among them is a world record for triple product, the value that measures how close a fusion device is to generating net energy across the plasma.
Exploring LSM tree implementation in PostgreSQL for better write performance.
We rolled out Go 1.24 and saw a memory regression. Here’s how we dug into system metrics, uncovered a bug in the runtime allocator, and worked with the Go team to help fix it.
A story about a bug with logical replication slot creation on Postgres read replicas
Welcome to LTT Labs - your go-to destination for all things tech. Explore comprehensive test results, insightful commentary, and the latest analysis in hardware.
Explore how Materialize engineers diagnosed and resolved a rare concurrency bug in Rust's unbounded channels that led to undefined behavior through double-free memory errors.
Learn why Postgres LISTEN/NOTIFY doesn't scale for high-throughput use cases and what architectural alternatives Recall.ai uses in production.
How targeted improvements helped us speed up bulk data loads and complex schemas.
A new generation of collaborative software that allows users to retain ownership of their data.
Unleashing Film Grain Synthesis on Netflix and Enhancing Visuals for Millions
We recently ran across a strange higgs-bugson that manifested itself in a critical system that stores and distributes the firm’s trading activity data, calle...
vLLM is an open-source inference engine that serves large language models. We deploy vLLM across GPUs and load open weight models like Llama 4 into it. vLLM sits at the intersection of AI and systems programming, so we thought that diving into its details might interest our readers.
