Published: 2025-01-03 | Origin: /r/programming

The post discusses the diagnosis and resolution of two crashes in Go related to frame pointer unwinding, caused by faulty assembly code that inadvertently overwrote the frame pointer without properly saving and restoring it. The problems manifested in two ways: one instance involved clobbering the frame pointer register, while the other affected a saved frame pointer on the stack. The issue was tied to the Go 1.23 version, specifically when using profile-guided optimization (PGO) and primarily impacted programs built for

Published: 2025-01-03 | Origin: /r/ruby

The content discusses the feedback process for a Ruby-on-Rails test application that uses Devise for authentication. It highlights performance testing done by sending continuous requests to the server, involving five specific URLs. The application runs on a Linux operating system with an AMD Ryzen 7 5800X processor. Performance metrics such as mean and median response times are measured after a warm-up period, with results displayed through boxplots indicating response times and scatter plots showing individual response time calls. The analysis also includes visual markers

Published: 2025-01-03 | Origin: Hacker News

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Published: 2025-01-03 | Origin: Hacker News

Party Squasher™ is a budget-friendly guest occupancy counter designed for short-term rental managers to monitor and prevent large gatherings at properties. It utilizes a compact sensor that connects to a home's Internet router to continuously count mobile phones in and around the house, providing real-time guest occupancy updates through a mobile app. Users can set an occupancy limit and receive alerts via text or email when the threshold is exceeded, allowing for proactive action before a party escalates. Unlike traditional noise monitors, which only alert when noise levels

Published: 2025-01-03 | Origin: /r/programming

The author is active on X/Twitter as @brandur and on Bluesky at brandur.org. Recently, an implementation for UUIDv7 was added to Postgres, offering advantages over traditional UUIDv4, such as improved performance during inserts with ordered structures like B-trees due to more deterministic ordering based on the current time. A notable feature of this implementation is that the random portion of the UUIDs is monotonic within each Postgres backend, achieved by storing a sub-millisecond timestamp that

Published: 2025-01-03 | Origin: Hacker News

By 2025, the internet has transformed significantly from its early 2000s form, with a decline in the diversity of platforms such as blogs and forums. Instead, the online landscape is dominated by a few major players like Reddit, Discord, Facebook, and YouTube, which has made it difficult for niche communities and content to gain visibility outside these platforms. For many users, these conglomerates define what the internet is, leading to potential issues related to discoverability and community engagement. The author

Published: 2025-01-02 | Origin: Hacker News

At the end of 2024, Harold Aptroot shared his disappointment regarding the SHLX instruction on Alder Lake processors, describing it as a "medium latency" instruction that takes 3 cycles, unlike the 1 cycle it takes on other CPUs. SHLX, part of the BMI2 instruction set, does not affect the FLAGS register and is typically a 3-operand instruction. Tavian Barnes, intrigued by this discrepancy, noted that while Alder Lake's efficiency cores execute SHLX in 1

Published: 2025-01-02 | Origin: Hacker News

iTerm2 version 3.5.11, released on January 2, 2025, contains a critical security fix. Users of the SSH integration feature in versions 3.5.6 to 3.5.10 and any beta versions may be affected. A bug caused input and output to be logged to a file (/tmp/framer.txt) on the remote host, which could be accessible to other users. To determine if you're affected, two conditions must be met: you

Published: 2025-01-02 | Origin: /r/programming

Bunster is a tool designed to enhance the performance, portability, and security of shell scripts by compiling them into efficient standalone binaries, specifically targeting bash scripts initially. Unlike tools that merely package scripts, Bunster acts as a shell-to-Go transplier, converting scripts into Go source code, which is then compiled into native machine code using the Go toolchain. This allows for faster execution and easier distribution across Unix platforms. Bunster is still in early development, with some features available and others planned for

Published: 2025-01-02 | Origin: Hacker News

The blog discusses the author's experience of solving the Advent of Code challenges using pure SQL, emphasizing how this approach encourages alternative problem-solving perspectives. The author found it feasible to solve all problems with SQL, often enjoying its application, particularly for smaller tasks. For example, the full solution for Day 11 is shared, showcasing how to parse input and execute a recursive traversal to derive answers. However, the author highlights challenges faced, especially on Day 16, where SQL's handling of memory and recursion led to

Published: 2025-01-02 | Origin: Hacker News

The arXiv Privacy Policy has been updated, and by using arxiv.org, users agree to the new terms. arXivLabs is a platform for developers to create and share features on the arXiv website, emphasizing values such as openness, community, excellence, and user data privacy. arXiv collaborates only with partners who share these values. Users are encouraged to propose projects that benefit the arXiv community. Additionally, updates on arXiv's operational status can be received

Published: 2025-01-02 | Origin: Hacker News

The writer shares their New Year tradition of celebrating with family in a Japanese manner, which they liken to a Western Christmas. They mention the practice of Kakizome (書き初め), the first calligraphy of the year where individuals write a word or phrase reflecting their aspirations. While the tradition has specific rituals, like using the first water from a well, the writer notes that many Japanese, including themselves, may not strictly adhere to these details. They express appreciation for the flexibility of Kakiz

Published: 2025-01-02 | Origin: /r/programming

The series of posts aims to guide readers in building an emulator for the Chip-8 system, which is ideal for those looking to understand emulators or the fundamentals of digital systems. Chip-8 is a straightforward system, encompassing essential components found in more complex systems, making it an accessible project for learning about emulation. The series will explore various features of the Chip-8, including how it executes programs through a list of numerical instructions, akin to buttons on a calculator. Initial content will cover basic

Published: 2025-01-02 | Origin: Hacker News

The content discusses a slime mold simulation created using WebGPU and TypeScript, inspired by Sebastian Lague's coding adventure but with fewer features. The author emphasizes the importance of feedback and encourages users to check the documentation for available qualifiers. A 45-second demo of the simulation is available on social media platforms, while a playable demo can be found on the author's website, though compatibility issues with WebGPU may arise on certain devices. For those seeking more detail, a 5-minute development log on YouTube

Published: 2025-01-02 | Origin: /r/programming

The content discusses the evolution of code editors from being language-specific to more versatile options due to the challenges posed by the multitude of programming languages and editors, leading to an M*N complexity problem. Microsoft addressed this issue by introducing the Language Server Protocol (LSP), which streamlines the interaction between code editors and language tools to an M+N complexity. LSP, primarily developed for VS Code, utilizes JSON-RPC 2.0 for communication, allowing editors to connect with language servers that provide various

Published: 2025-01-02 | Origin: /r/programming

Michael Lynch critiques common software tutorials for their flaws, such as omitting key details and using expert terminology that might confuse beginners. He emphasizes that many tutorial readers are not experts in the specific domain they're exploring, even if they have programming experience. As a solution, Lynch proposes a few simple rules for writing effective tutorials, such as avoiding jargon and explaining concepts clearly for a non-expert audience. He demonstrates this approach through a React tutorial, suggesting simpler language and a clearer introduction that makes the content more accessible

Published: 2025-01-02 | Origin: /r/programming

The author reflects on their journey into the tech industry, highlighting the ease of finding jobs in the early days when hiring standards were low and opportunities were plentiful. After dropping out of college and initially working as a Unix sysadmin, they transitioned to a software engineering role at a startup. Despite not having a conventional background in computing, they were able to learn on the job and secure employment. The author expresses a sense of luck in entering the industry when the market was still in its early, unregulated phase

Published: 2025-01-02 | Origin: /r/programming

The content describes a personal experience of the author during a Christmas break, where they faced challenges while adding a new feature to a macOS app that required Accessibility (AX) permissions. Despite following Apple’s documentation, system calls continued to fail, leading to a day of frustrating troubleshooting. Through this process, the author learned about the historical context of computing, including the significance of X.500, a standard that facilitated global computer networking, and discovered the meaning of an Object Identifier (OID). To understand O

Published: 2025-01-02 | Origin: /r/programming

The Mill JVM build tool allows for the creation of directly executable assembly jars, differentiating it from other JVM build tools that typically require running applications using commands like `java -jar` or `java -cp`. Unlike these traditional methods, Mill automates the process, making it more convenient for command-line workflows. The article explains how Mill implements executable assemblies and suggests that other build tools could adopt similar functionality. Mill's JavaModules come with built-in assembly tasks, enabling not just simple projects but also more

Published: 2025-01-02 | Origin: /r/programming

Ofer Fryman, the founder of DaVoice.io, highlights the importance of voice interaction in modern applications and introduces a new approach that goes beyond traditional transcription-based voice systems. Their technology utilizes wake words and speech-to-intent processing to create a more intuitive voice operating system, addressing issues like reliability and latency associated with cloud-based transcription services. Instead of converting spoken words to text, their system recognizes wake words to activate voice commands and directly interprets spoken phrases to understand user intent. For example, if