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A sharded DuckDB on 63 nodes runs 1T row aggregation challenge in 5 sec
What happens when you give a distributed SQL engine a trillion-row dataset? GizmoEdge crushed the Coiled challenge with a 1,000-worker cluster on Azure.
New
The latest blog posts to take off on Hacker News. 2,560 posts.
212
How memory maps (mmap) deliver faster file access in Go
Learn how memory maps (mmap) accelerate file I/O, reduce latency, and improve app performance in Unix and Go with real-world benchmarks.
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Corrosion
Corrosion is distributed service discovery based on Rust, SQLite, and CRDTs.
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SourceFS: A 2h+ Android build becomes a 15m task with a virtual filesystem
SourceFS - a high-performance virtual filesystem that builds Android 9× faster, cuts compute costs by 14×, and reduces disk usage by 83× — unlocking a new level of developer productivity.
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UA 1093
On Thursday, 16 October, Foreign Object Debris (FOD) struck the windshield of UA1093, a 737 MAX aircraft, at approximately 36,000 ft. WindBorne began investigating…
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Deterministic multithreading is hard (2024)
Hello, While a lot of time of 2.0 development has been spent on new features and quality of life, we still take care of the smaller details and technical improvements.
218
Is Postgres read heavy or write heavy?
A query to find out if Postgres is read heavy or write heavy and tips for optimizing Postgres for both read and write workloads.
219
When you opened a screen shot of a video in Paint, the video was playing in it
You copied the green screen.
220
A kernel stack use-after-free: Exploiting Nvidia's GPU Linux drivers
This article details two bugs discovered in the NVIDIA Linux Open GPU Kernel Modules and demonstrates how they can be exploited. The bugs can be triggered by an attacker controlling a local unprivileged process. Their security implications were confirmed via a proof of concept that achieves kernel read and write…
221
Unpacking Cloudflare Workers CPU Performance Benchmarks
Cloudflare investigated CPU performance benchmark results for Workers, uncovering and fixing issues in infrastructure, V8 garbage collection, and OpenNext optimizations. These improvements have made Cloudflare Workers faster for all customers.
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Benchmarking Postgres 17 vs. 18
Postgres 18 brings a significant improvement to read performance via async I/O and I/O worker threads. Here we compare its performance to Postgres 17.
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An initial investigation into WDDM on ReactOS
ReactOS is a free, opensource reimplementation of windows
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AdapTive-LeArning Speculator System (ATLAS): Faster LLM inference
LLM inference that gets faster as you use it. Our runtime-learning accelerator adapts continuously to your workload, delivering 500 TPS on DeepSeek-V3.1, a 4x speedup over baseline performance without manual tuning.
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Erlang ARM32 JIT is born
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
227
Intelligent Kubernetes Load Balancing at Databricks
How Databricks uses client-side load balancing to improve gRPC traffic, reduce tail latency, and handle ingress with real-time service discovery.
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We bought the whole GPU, so we're damn well going to use the whole GPU
Benjamin Spector* , Jordan Juravsky* , Stuart Sul* , Dylan Lim , Owen Dugan , Simran Arora , Chris Ré
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Why is Windows still tinkering with critical sections? – The Old New Thing
The critical section may be an old dog, but it's still learning new tricks.
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TernFS – An exabyte scale, multi-region distributed filesystem
XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, currencies, commodities and crypto. It uses those forecasts to trade on exchanges and alternative trading venues, and…
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A postmortem of three recent issues
A technical report on three bugs that intermittently degraded Claude's responses: what happened, why fixes took time, and what we're changing.
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Optimizing ClickHouse for Intel's ultra-high core count processors
Intel's latest processor generations are pushing the number of cores in a server to unprecedented levels. For analytical databases like ClickHouse, ultra-high core counts represent a huge opportunity and a complex challenge.
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Stategraph: Terraform state as a distributed systems problem
Terraform state is a distributed systems problem masquerading as file storage. Graph state fixes the bottlenecks.
235
NT OS Kernel Information Disclosure Vulnerability
Bidding farewell to one of the last kernel address leaks, CVE-2025-53136. Even patches can open new doors for exploitation.
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Performance Improvements in .NET 10
Take a tour through hundreds of performance improvements in .NET 10.
237
How Ruby executes JIT code
Where does JIT-compiled code live? How does Ruby switch between bytecode and native execution? Why does TracePoint slow everything down? This post answers the JIT questions most Ruby developers have but rarely see explained.
238
Memory Integrity Enforcement
Memory Integrity Enforcement (MIE) is the culmination of an unprecedented design and engineering effort spanning half a decade that combines the unique strengths of Apple silicon hardware with our advanced operating system security to provide industry-first, always-on memory safety protection across our devices …
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I solved a distributed queue problem after 15 years
Learn how queues make horizontal scaling, scheduling, and flow control easier in cloud systems, and how to make them durable and observable.
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Firefox 32-bit Linux Support to End in 2026
For many years, Mozilla has continued to provide Firefox for 32-bit Linux systems long after most other browsers and operating systems ended support. We made this choice because we care ...