Published: 2025-10-21 | Origin: /r/programming

The author reflects on a past job interview where they advocated for using a straightforward `switch` statement for implementing protocol handler dispatch, rather than complex structures like jump tables or binary searches. They believe in starting with the simplest solution and evaluating performance through compiler output. The interviewer preferred a more intricate approach, highlighting a disconnect in their expectations. This experience sparked the author’s curiosity about the performance differences between table-based and comparison-based dispatch methods. They attempted to conduct an experiment to explore these differences, fueled by insights

Published: 2025-10-21 | Origin: /r/programming

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Published: 2025-10-21 | Origin: Hacker News

New research highlights the significant impact of updated guidelines from 2015, which recommended introducing peanut products to infants as early as 4 months to prevent peanut allergies. Approximately 60,000 children have avoided developing these allergies due to this change in practice. A study by Dr. David Hill and colleagues analyzed pediatric health records and found that peanut allergies in children aged 0 to 3 declined by over 27% after the initial guidelines and by more than 40% following expanded recommendations in 2017

Published: 2025-10-21 | Origin: /r/programming

LogMod is a lightweight, modular logging library for C applications that supports various severity levels, custom labels, thread-safety, and colored output. It has a single-header implementation that allows easy integration without dynamic memory allocation and is compatible with C89 and C99 standards. Features include additional macros for advanced usage, a global fallback logger for immediate logging, and customization options during setup. To initialize logging, the `logmod_init` function is used, requiring pre-allocated space for logger instances. Logging

Published: 2025-10-21 | Origin: /r/ruby

The Ruby documentation can now be searched using a query parameter, allowing users to easily find relevant information. This feature is available for documentation built with RDoc 6.15.0 or later. The author implemented this feature to avoid outdated third-party documentation that often appears in Google searches. Users can search Ruby methods using the Kagi Search “bangs” feature or set up custom search shortcuts in their browsers (Firefox and Chrome) for direct access to Ruby documentation. Stan Lo is also working on enhancing

Published: 2025-10-20 | Origin: /r/programming

The content discusses a malicious campaign known as BeaverTail targeting developers through deceptive LinkedIn messages. It highlights how a recruiter, posing as Tim Morenc from an "AI-driven innovation lab" called DLMind, offers lucrative remote engineering positions. The potential victims are asked to clone a GitHub repository for a supposed coding assessment. When they execute the code, a multi-staged malware attack is triggered, compromising their digital security. This campaign exemplifies the dangers of social engineering and the blurred lines between legitimate

Published: 2025-10-20 | Origin: /r/programming

Python 3.14 was released this month, featuring improvements in the free-threaded variant of the interpreter compared to Python 3.13. Miguel Grinberg wrote an article highlighting performance enhancements in Python 3.14t, showcasing better results for CPU-bound tasks like calculating Fibonacci sequences and bubble sort. Given the author's focus on web development, they aim to evaluate the performance differences between free-threaded and GIL Python interpreters in web applications. Despite the predominance of I/O-bound operations

Published: 2025-10-20 | Origin: /r/programming

Fil-C is a memory-safe programming language that maintains compatibility with C and C++. It allows many existing C and C++ software applications to compile and run with minimal changes. Fil-C addresses memory safety issues by utilizing concurrent garbage collection and invisible capabilities (InvisiCaps), thus catching all memory safety errors as panics. The language does not permit unsafe statements and restricts foreign function interfaces (FFI) to unsafe code. The compiler is licensed under Apache 2, and the runtime under BSD 2

Published: 2025-10-20 | Origin: /r/programming

The content discusses the complexities of stopping threads in a long-running multi-threaded application on Linux, specifically when using the clone syscall or thread libraries like pthread_create and std::thread. While starting threads is straightforward, safely stopping them—allowing for cleanup operations to free memory, release locks, and flush logs—is more challenging and lacks a universal solution. The article notes that the principles also apply to processes, as threads share virtual memory in Linux, and highlights common pitfalls in managing thread termination. The author

Published: 2025-10-20 | Origin: Hacker News

Today, a new feature called Claude Code on the web has been introduced in beta as a research preview, enabling users to delegate coding tasks directly from their browser. This tool allows for the assignment of multiple coding tasks that run on Anthropic-managed cloud infrastructure, making it efficient for managing bug backlogs and facilitating routine fixes or parallel development. Users can start coding sessions without using a terminal by connecting their GitHub repositories and describing their tasks, which Claude will handle. Each session operates in an isolated environment with

Published: 2025-10-20 | Origin: Hacker News

An individual shared insights from their 8-month experience developing a Retrieval-Augmented Generation (RAG) system for Usul AI and a legal AI enterprise, covering 9 million and 4 million pages, respectively. Initially, they utilized YouTube tutorials on Langchain and Llamaindex to build a working prototype quickly, achieving promising results with a small dataset. However, when running the system on the full production dataset, performance was disappointing, prompting a lengthy process of rewriting components to improve the system.

Published: 2025-10-20 | Origin: Hacker News

The content mentions that the subject matter is compatible with Git repositories, indicating it can function or integrate effectively within Git environments.

Published: 2025-10-20 | Origin: /r/ruby

The author reflects on their experience transitioning from Python to Ruby, particularly regarding loops and method calls. Initially, they mistakenly viewed Ruby loops as similar to Python's, but upon deeper analysis, they realized Ruby's approach is fundamentally different. In Ruby, method calls are more like sending messages to objects, rather than invoking methods directly as in Python. They emphasize that when using Ruby's `.times` method, the message `:times` is sent to the number 10, which then processes the request.

Published: 2025-10-20 | Origin: Hacker News

Google DeepMind has introduced Gemini Diffusion, an innovative language model that generates text through a diffusion process, as opposed to traditional models like GPT that produce text one word at a time. Gemini Diffusion creates segments of text by refining random noise in a stepwise manner. The author reflects on insights gained from the paper "Large Language Diffusion Models," which suggests that discrete language diffusion builds on concepts from masked language modeling (MLM) that have been in use since 2018. This prompted the

Published: 2025-10-20 | Origin: /r/programming

Amazon Web Services (AWS) has begun to recover from a major outage that impacted users of various applications, including Snapchat, Fortnite, Roblox, and services like Prime Video and Alexa, especially in the US-East-1 region. The outage started around 3 a.m. EST, with reports peaking around 4 a.m. EST, leading to approximately 5,000 reports of issues in the U.S. alone. AWS identified the problem as related to DNS resolution for its DynamoDB API,

Published: 2025-10-20 | Origin: /r/programming

The article discusses the capabilities and limitations of Large Language Models (LLMs) like GPT and Claude, emphasizing that they are skilled at mimicking language patterns but lack true understanding or autonomous thought. LLMs predict the next word in a sequence based on training data, focusing on plausibility rather than accuracy, which differentiates them from human engineers. Engineering involves making decisions based on consequences over time, often requiring delayed feedback, which cannot be effectively modeled by LLMs. Instead, engineering is better suited

Published: 2025-10-20 | Origin: /r/ruby

A new version of InvoicePrinter, a Ruby library for generating PDF invoices, has been released. The update includes the implementation of QR code images, which can be added simply by pointing to the image path. The QR code will be positioned at the bottom right, above any existing notes. This version also supports Ruby 3.4, maintaining compatibility with Rubies 3.1 to 3.4 while continuing to use the current Prawn version due to a circular dependency. Additionally, Simon Ne

Published: 2025-10-20 | Origin: Hacker News

A paper presented at the 2025 ACM Symposium on Operating Systems (SOSP) outlines how Alibaba Cloud's Aegaeon pooling system employs token-level scheduling to optimize GPU utilization for large language models (LLMs). This innovation reduced the need for Nvidia GPUs from 1,192 to just 213 during beta testing, enhancing inference capacity significantly, particularly in constrained markets like China. Aegaeon allows multiple models to share a single GPU by virtualizing access at the token level, resulting in

Published: 2025-10-20 | Origin: Hacker News

Valetudo is an open-source software solution designed for vacuum robots that enables local-only operation without reliance on cloud services. Developed and maintained by Sören Beye since 2018, Valetudo has become a reliable option for users seeking to avoid data telemetry and commercial interests in their robot vacuums. The software has gained popularity, with thousands of installations, and continues to evolve thanks to contributions from the community, including significant input from Dennis Giese on enhancing ownership and autonomy of robots. The

Published: 2025-10-20 | Origin: /r/ruby

The article by Exequiel Rozas discusses the importance of creating Open Graph (OG) images for content published on websites, particularly in Rails applications. Open Graph is a protocol that uses metadata to control how a webpage appears when its URL is shared on social media. This includes using specific tags like og:title, og:description, and og:image to customize the appearance of the shared content. The author emphasizes that a well-designed OG image is crucial for attracting clicks and highlights the need to automate the image