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chDB is a powerful SQL OLAP engine that combines the features of SQLite and ClickHouse. Despite its small size of approximately 100mb, it can run on even smaller machines with just 64mb of RAM. What sets chDB apart is its wide range of language bindings, including Python, Node.js, Go, Rust, and C/C++. The author provides […]
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In 2023, the U.S. experienced a record-breaking 25 billion-dollar weather and climate disasters, surpassing the previous record set in 2020. The increase in these extreme events such as hurricanes, storms, heavy rainfall, and wildfires can be attributed to the accumulation of greenhouse gases in the atmosphere. Between 1980 and 2022, the U.S. averaged eight billion-dollar […]
PowerInfer is a high-speed Large Language Model (LLM) inference engine that can be used on a personal computer (PC) with a consumer-grade GPU. The key to PowerInfer’s design is the exploitation of the high locality inherent in LLM inference, which is characterized by a power-law distribution in neuron activation. This means that a small subset […]
This web content introduces a simple and minimal implementation of Mamba in one file of PyTorch. The implementation ensures that the numerical output matches the official implementation for both forward and backward pass. The code is simplified, readable, and annotated, making it easier to understand. However, it does not prioritize speed optimization, unlike the official […]
In this web content, the author provides a detailed overview of bit banging a 3.5″ floppy drive using a Teensy4.0. They share their project code on GitHub and offer insights on how floppy disks work. The author explains that a 3.5″ floppy disk contains 80 tracks, each with 18 sectors, and each sector holds 512 […]
OpenAI CEO Sam Altman’s venture firm, Hydrazine Capital, received a check from the University of Michigan’s $17.9 billion endowment for its fourth fund. This is the second investment the university has made in Altman’s venture capital firm. The exact size and focus of the fund are unclear. Altman has been fundraising outside of his role […]
In this article contributed by Thomas Zimmermann, the concept of modern Linux graphics is explored, focusing on the various software components and their interactions. The article delves into the process of rendering and visualizing data in applications using scene graphs and describes how standard APIs like OpenGL or Vulkan are used for rendering. It also […]
In recent news, Spotify has laid off 17% of its workforce and canceled two popular shows, including one that won a Pulitzer Prize. However, this doesn’t mean that the podcast industry as a whole is failing. While Spotify’s decisions and failures have had a significant impact on the industry, there are still many podcast creators […]
In this web content, the author discusses different approaches to designing a system that relies on time and is testable. The author’s experience primarily comes from networking, where timely responses are crucial. The naive approach of using std::chrono::::now() makes unit tests impossible. Instead, the author suggests several alternative approaches. One approach involves using a clock […]
The author begins by discussing color management in relation to HDR and Wayland. They mention that KWin now supports ICC profiles for adjusting colors on each screen, but applications are still limited to sRGB. They highlight the need for a color management protocol for Wayland native applications and mention an implementation in a KWin branch. […]