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FreeBSD 13.4-Release
The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 13.4-RELEASE. This is the fifth release of the stable/13 branch.
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The latest blog posts to take off on Hacker News. 2,560 posts.
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Valkey achieved one million RPS 6 months after forking from Redis
Maximize the performance of your hardware with memory access amortization
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Why Oxide Chose Illumos
Servers in the Oxide Rack will form the backbone of both the compute and storage services available to customers. The rack will be composed of a variety of hardware and software components, some of which represent resource-constrained or inflexible environments; e.g., the Service Processor (SP) or Hardware Root Of…
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Noisy neighbor detection with eBPF
By Jose Fernandez, Sebastien Dabdoub, Jason Koch, Artem Tkachuk
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A good day to trie-hard: saving compute 1% at a time
Pingora handles 35M+ requests per second, so saving a few microseconds per request can translate to thousands of dollars saved on computing costs. In this post, we share how we freed up over 500 CPU cores by optimizing one function and announce trie-hard, the open source crate that we created to do it.
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Box64 and RISC-V in 2024: What It Takes to Run the Witcher 3 on RISC-V
What It Takes to Run The Witcher 3 on RiSC-V
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Adding 16 kb page size to Android
Android 15 has been refactored to support using 16 KB page sizes, and file systems like EROFS and F2FS have been made compatible.
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Hardware Virtualization
Project overview QEMU is a virtual machine which allows running an operating system inside of another. While there already is a Haiku port, it currently does not support any acceleration system through native virtualization (through Intel VT-x and …
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SIMD Matters: Graph Coloring
SIMD in game development Often in game development we talk about SIMD. It is the holy grail of CPU performance, often out of reach. The conventional wisdom is that it is difficult to achieve real gains from SIMD. It is tempting to build a math library around SIMD hoping to get some performance gains. However, it often…
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Building a highly-available web service without a database
In this viral post, we explain a new paradigm of building simple clean apps: from prototyping to scaling up.
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How we migrated onto K8s in less than 12 months
Migrating onto Kubernetes can take years. Here’s why we decided it was worth undertaking, and how we moved a majority of our core services.
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Jepsen: Jetcd 0.8.2
Etcd is a coordination service designed to offer Strict Serializable reads, writes, and micro-transactions over a small, in-memory key-value store. In 2022, Jepsen re-tested etcd as a part of a private engagement covering an assortment of databases. We reported several issues to the etcd team during that engagement…
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How we found and fixed an eBPF Linux kernel vulnerability
This blog post takes a look at the years where eBPF was one of the kernel subsystems that grabbed the attention of a lot of security researchers. We will tell the story of how we discovered CVE-2023-2163, what our root-cause analysis process looked like, and what we did to ultimately fix the issue.
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A cryptographically secure bootloader for RISC-V in Rust
A summary of a Codethink sponsored project which implements a cryptographically secure bootloader, written in Rust, for RISC-V.
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Towards userspaceification of POSIX – part I: signal handling and IO
The Redox official website
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Rediscovering Transaction Processing from History and First Principles
In July 2020, I stumbled into a fundamental limitation in the general-purpose database design for transaction processing.
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Stremio OS Is Now Available for Raspberry Pi 5 and 4
We are happy to announce that Stremio is now available for Raspberry Pi 5 and 4, installable on an SD card (of at least 8GB). Note: While the Raspberry Pi 5 is fully capable of smooth 4K playback, Raspberry Pi 4 will not be able to play 4K content due to hardware limitations. This release...
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Instrumenting Python GIL with eBPF
Learn how to measure the impact of Python GIL contention on application latency using eBPF, with real workload examples.
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NVIDIA Transitions Fully Towards Open-Source Linux GPU Kernel Modules
With the R515 driver, NVIDIA released a set of Linux GPU kernel modules in May 2022 as open source with dual GPL and MIT licensing. The initial release targeted datacenter compute GPUs…
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How we sped up Notion in the browser with WASM SQLite
Notion engineers sped up Notion's browser speed with WASM SQLite
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FlashAttention-3: Fast and Accurate Attention with Asynchrony and Low-Precision
FlashAttention-3 achieves up to 75% GPU utilization on H100s, making AI models up to 2x faster and enabling efficient processing of longer text inputs. It allows for faster training and inference of LLMs, supports lower precision operations for improved efficiency.
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End-to-end congestion control cannot avoid latency spikes (2022)
What are the fundamental limits of end-to-end congestion control in 5G networks?
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The Race to Seal Helium HDDs (2021)
Long thought impossible, helium has been one of the greatest breakthroughs for high-capacity HDDs. This is the story the science behind them.
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Google Sheets ported its calculation worker from JavaScript to WasmGC
Calculations in Google Sheets were initially done on the server, then on the client in JavaScript, and now on the client in WebAssembly Garbage Collection. This case study explains how and why.
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Researchers run high-performing LLM on the energy needed to power a lightbulb
UC Santa Cruz researchers show that it is possible to eliminate the most computationally expensive element of running large language models, called matrix multiplication, while maintaining performance.
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Timeliness without datagrams using QUIC
Media over QUIC: Rethink your approach. *Unless you're doing something dope.
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Exploring How Cache Memory Works
Even though we often hear terms like L1, L2, cache block size, etc., most programmers have a limited understanding of what cache really is. This is a beginner-friendly primer on how cache works.