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11M IOPS & 66 GiB/s IO on a Single ThreadRipper Workstation: A Deep Dive

2025-05-06

This article details the configuration of an AMD ThreadRipper Pro workstation with 10 PCIe 4.0 SSDs to achieve 11M IOPS for 4kB random reads and 66 GiB/s throughput for larger IOs. The author tackles bottlenecks like RAM access and CPU limitations, delving into Linux block I/O internals and their interaction with modern hardware. The process includes hardware selection, I/O configuration (direct I/O and I/O schedulers), multi-disk testing, and BIOS settings, ultimately achieving remarkable performance.

(tanelpoder.com)

Hardware

Lyme Disease Breakthrough: New Antibiotic and Understanding Chronic Symptoms

2025-05-06

Lyme Disease Breakthrough: New Antibiotic and Understanding Chronic Symptoms

Northwestern University researchers have identified piperacillin, an antibiotic significantly outperforming doxycycline, the current gold standard for Lyme disease treatment. Piperacillin cured Lyme disease in mice at a dosage 100 times lower than doxycycline, with minimal impact on gut microbiota. Furthermore, the research uncovered a potential cause for Post-Treatment Lyme Disease (PTLD): lingering Borrelia cell wall remnants in the liver triggering an immune response. This discovery paves the way for more precise Lyme disease diagnostics, treatments, and strategies to prevent chronic symptoms.

(news.northwestern.edu)

Tech Lyme Disease Antibiotic Chronic Illness

Ubuntu 25.10 to Ship with Memory-Safe sudo-rs by Default

2025-05-06

Ubuntu 25.10 to Ship with Memory-Safe sudo-rs by Default

Canonical announced that Ubuntu 25.10 will default to sudo-rs, a memory-safe replacement for the widely-used sudo utility written in Rust. This move aims to enhance Ubuntu's security and maintainability. Developed by the Trifecta Tech Foundation, sudo-rs addresses memory safety concerns inherent in traditional C-based sudo implementations. This change will be carried forward to Ubuntu 26.04 LTS, ensuring long-term security and stability.

(trifectatech.org)

Development

AnuDB: A Lightweight, Serverless C++ JSON Document Database

2025-05-06

AnuDB: A Lightweight, Serverless C++ JSON Document Database

AnuDB is a lightweight, serverless document database designed for C++ applications, offering efficient JSON document storage via MessagePack serialization. Built on RocksDB, it ensures atomicity, durability, and consistency. AnuDB provides a schema-less solution with robust query capabilities and supports MQTT for real-time data communication, ideal for IoT applications. Memory/CPU usage is configurable, and Docker support simplifies deployment.

(github.com)

Development

Getting Things Done in Big Tech: It's Not What You Think

2025-05-06

In large tech companies, competent engineers can easily fall into the trap of continuously improving existing systems, neglecting the actual delivery of value. This article argues that "finishing" work doesn't mean endless refinement, but reaching a point where company decision-makers are satisfied. Declare victory and move on! This requires making your work visible and understandable to those decision-makers, perhaps by demonstrating financial impact. Ultimately, "getting things done" is a social construct, but a powerful one impacting your career.

(www.seangoedecke.com)

Development

From Transistor to Browser: Building a Computer System from Scratch

2025-05-06

From Transistor to Browser: Building a Computer System from Scratch

This course takes a radical approach to computer science education. Students will build a complete computer system from the ground up, starting with Verilog to blink an LED and culminating in a simple operating system and text-based web browser. The curriculum covers FPGA programming, compiler design, and OS development, culminating in running the system on custom-built hardware. This challenging yet rewarding journey is perfect for those seeking a deep, first-principles understanding of computing.

(github.com)

Hardware computer systems

Skype to Retire in May 2025, Transitioning to Microsoft Teams

2025-05-06

Skype to Retire in May 2025, Transitioning to Microsoft Teams

Microsoft announced that it will shut down Skype in May 2025, migrating users to its modern communication and collaboration platform, Microsoft Teams. This move aims to streamline free consumer communication services and better adapt to user needs. Existing Skype users can choose to migrate to Teams for free, with all chats and contacts automatically imported; or they can export their data. Teams offers core features similar to Skype, with added advanced features such as meeting hosting and community building. This transition will be phased to ensure users can stay connected during the transition.

(www.microsoft.com)

Tech Communication Software

Beware the Cultural Nuances of Code: The Turkish 'İ' Uppercase Trap

2025-05-06

This article highlights a surprising bug: string case comparisons fail in Turkish culture. The uppercase of 'i' in Turkish is the dotted 'İ', unlike English 'I', causing simple string comparisons to fail. The author advocates using `StringComparison.Ordinal` or `StringComparison.OrdinalIgnoreCase` for string comparisons and recommends using Visual Studio's Code Analysis tool to prevent such issues. A phased approach to adding rules and managing them via ruleset files is suggested, ultimately preventing bugs stemming from cultural differences.

(haacked.com)

Development code bug

Carolina Eyck: Redefining the Theremin

2025-05-06

Carolina Eyck: Redefining the Theremin

Carolina Eyck, a classically trained musician from East Germany, has become a leading theremin virtuoso, revolutionizing the way this enigmatic instrument is played. Her innovative techniques, documented in her seminal work 'The Art of Playing the Theremin', and collaborations with renowned orchestras, are breathing new life into this unique electronic instrument, blurring the lines between classical and electronic music.

(www.smh.com.au)

Misc Theremin Electronic Music Classical Music

Hyper: A Minimalist UI Markup Language Challenging React's Dominance

2025-05-06

Hyper: A Minimalist UI Markup Language Challenging React's Dominance

Hyper is a new, minimalist UI markup language designed to build complex UIs with clean syntax, challenging React's complexity. Key differences include Hyper's lightweight nature, significantly less code, easier maintenance, and complete separation of styling from logic, boosting reusability. The article contrasts building the same components with React and Hyper, highlighting how Hyper's decoupled design and adherence to web standards solve React's scalability and maintainability issues. The ultimate goal is a simpler full-stack framework with AI-powered UI generation.

(nuejs.org)

Development UI framework React alternative

Anukari: macOS Realtime Physics Audio Synthesizer Performance Issues

2025-05-06

Anukari, a GPU-based real-time 3D physics audio synthesizer, performs well on most macOS systems. However, on some high-end Apple Silicon devices, its performance degrades due to macOS's power-saving GPU strategies. The author attempted to solve the problem with a "waste makes haste" strategy (running an extra workload on the GPU to increase its frequency), but this fails on high-end devices due to independent frequency regulation of multiple GPU chips. The author calls on the Apple Metal team to help solve this problem and proposes possible solutions, such as extending the concept of Audio Workgroup to the GPU or adding a real-time sensitive option to the Metal API.

(anukari.com)

Development Audio Synthesis

Square Kufic: A Labyrinthine Journey into Islamic Calligraphy

2025-05-06

Square Kufic: A Labyrinthine Journey into Islamic Calligraphy

As a child, the author was captivated by the intricate geometric patterns adorning mosques, later discovering them to be Square Kufic calligraphy, a 12th-13th century Islamic script. This style transforms Arabic letters into geometric designs, bending and breaking rules to create stunning, sometimes indecipherable, patterns. The article explores Square Kufic's origins, characteristics, and modern reinterpretations, showcasing artists who integrate verses into architecture or create modern art pieces. Personal anecdotes and a discussion of the Topkapi Scroll reveal the art form's multi-layered appeal: from visual beauty to cryptic messages, offering rich cultural depth and endless intrigue.

(uwithumlaut.wordpress.com)

Design Islamic Calligraphy Square Kufic

Argus: An Interactive Debugger for Demystifying Complex Rust Trait Errors

2025-05-06

Argus: An Interactive Debugger for Demystifying Complex Rust Trait Errors

Rust's powerful type system is renowned, but complex type errors can be frustrating for developers. This article introduces Argus, an interactive debugger that visualizes the Rust trait inference tree in a graphical interface, helping developers understand complex trait errors step by step. Argus offers both bottom-up and top-down views, along with interactive expansion of long types and paths, significantly improving error localization efficiency. A user study showed a 3.3x speedup in locating trait errors using Argus. Argus is available as a VSCode extension and the source code is open-sourced.

(cel.cs.brown.edu)

Development

ODF at 20: Open Document Format's Two-Decade Battle Against Microsoft

2025-05-06

ODF at 20: Open Document Format's Two-Decade Battle Against Microsoft

Twenty years ago, the Open Document Format (ODF) became a standard, aiming to break Microsoft Office's dominance. While ODF gained traction with some governments and organizations, including the UK government, the European Commission, and even NATO (which mandated its use), it failed to significantly dent Microsoft's market share. Proponents argue ODF is more than a technical specification; it symbolizes freedom of choice and interoperability. Yet, most users stick with Microsoft's default formats. This two-decade struggle reflects the ongoing tension between open standards and commercial strategies.

(www.theregister.com)

Tech Open Document

Hiding a Message in an eID Photo: A Failed Experiment

2025-05-06

Hiding a Message in an eID Photo: A Failed Experiment

A programmer attempts to embed a blog advertisement in his electronic ID photo. Using tools like ImageMagick, he inserts nearly invisible logos and text. However, during the ID card production process, this hidden information is removed. Although the experiment fails, he meticulously documents the entire process, including image manipulation techniques and legal analysis, showcasing the joy of technical exploration and attention to detail.

(informatykzakladowy.pl)

Tech information hiding eID

Sneakers 4K Blu-ray Review: A Classic Hackers Flick Gets a Stunning Upgrade

2025-05-06

Sneakers 4K Blu-ray Review: A Classic Hackers Flick Gets a Stunning Upgrade

The classic hacker film, *Sneakers*, gets a 4K restoration and Blu-ray release from Kino Lorber! This release boasts a stunning 4K visual upgrade, along with a wealth of bonus features including director and cast commentaries, a documentary, and vintage trailers. The film follows a group of skilled hackers as they're hired to steal a powerful decryption device from a brilliant mathematician. While some aspects might feel slightly dated, the film's clever plot twists and engaging humor remain captivating. This 4K release breathes new life into this tech thriller classic.

(www.blu-ray.com)

Tech 4K Restoration Hacker Film

The Programmer's Redemption: From Code Obsession to Letting Go

2025-05-06

This essay chronicles the author's journey from writing simple scripts to an obsessive need to refactor all software. Initially driven by problem-solving, it evolved into a compulsion for control, viewing every piece of software as a project needing improvement. The author reflects on the underlying psychology: using programming as an escape, a pursuit of control, and self-soothing. Ultimately, the author realizes not every problem needs solving and learns the mature skill of letting go.

(notashelf.dev)

Development code obsession

Switzerland's Cold War Relic: A Nuclear Bunker and the Illusion of Survival

2025-05-06

Switzerland's Cold War Relic: A Nuclear Bunker and the Illusion of Survival

This article recounts a visit to Sonnenberg, a seven-story underground command center built in Switzerland during the Cold War to shelter 20,000 people. While impressively engineered, the 1987 trial run revealed significant shortcomings. The article explores the historical context of Switzerland's robust civil protection program, rooted in WWII experience and a unique national identity. However, it also questions the feasibility of surviving a nuclear war and emphasizes the importance of diplomacy and non-proliferation. The piece ultimately reflects on the complex legacy of Sonnenberg—a testament to both Cold War anxieties and a persistent hope for peace.

(www.thedial.world)

Tech Switzerland Nuclear Bunker

30% Faster Bitonic Sort on CUDA: Leveraging Warp Shuffle

2025-05-06

This blog post details a CUDA implementation of the Bitonic sorting algorithm, achieving a 30% performance boost by cleverly using the `__shfl_sync` instruction. The author explains the principles of Bitonic sort, SIMD programming, and CUDA implementation specifics. The key optimization lies in replacing traditional shared memory communication with `__shfl_sync`, eliminating synchronization overhead and significantly improving efficiency. The post also hints at the potential for using this accelerated 32-element sort to speed up sorting of larger sequences, promising a follow-up on optimizing 32-way merging.

(winwang.blog)

Development Bitonic Sort Parallel Algorithm

Rust Memory Management: Advanced Techniques

2025-05-06

Rust Memory Management: Advanced Techniques

This is the fifth post in a series on Rust memory management, delving into advanced techniques for handling complex memory operations. Starting with a simple iterator example, the post explains the intricacies of Rust's ownership and borrowing system, clarifying why `for y in x` moves ownership of `x` and how using a reference `&x` avoids this. The impact of method calls on memory management is then analyzed, detailing how multiple method calls can lead to borrow checker errors and presenting solutions: drop and re-borrow, store a handle, make a copy, and restructure the code. The post concludes with a brief introduction to Rust lifetimes and non-lexical lifetimes, showing how lifetime annotations prevent dangling references and how Rust uses similar mechanisms to ensure both memory and thread safety.

(educatedguesswork.org)

Development Borrow Checker

Open WebUI Adds Branding Protection to License

2025-05-06

Open WebUI, an independent open-source AI project, has added a branding protection clause to its BSD-3 license starting with version 0.6.6. This follows a surge in bad actors taking the project, removing branding, and selling it commercially. The new clause doesn't affect legitimate users but prevents those who misrepresent the project and profit without contributing. It allows for modifications and redistribution but mandates clear attribution unless specific conditions are met (e.g., under 50 users, contributor with permission, or enterprise license). Open WebUI remains largely open-source, aiming to balance community spirit with project sustainability.

(docs.openwebui.com)

Development branding protection

My Email Server vs. Google: A Privacy Audit

2025-05-06

My Email Server vs. Google: A Privacy Audit

For 15 years, the author self-hosted their email to maintain autonomy and privacy. However, a recent analysis revealed that roughly one-third of their inbox, and a staggering half of the emails they replied to, originated from Google. This is due to the prevalence of Gmail among their contacts; even emails not directly sent from Gmail are copied by Google if routed through its servers. The author presents compelling graphs visualizing this alarming reality, prompting a crucial discussion about email privacy and control.

(mako.cc)

Misc email privacy

Hyundai Deploys Boston Dynamics' Atlas Robots in US Factory

2025-05-06

Hyundai Deploys Boston Dynamics' Atlas Robots in US Factory

Hyundai Motor Group is deploying Boston Dynamics' Atlas humanoid robots at its Metaplant America facility in Georgia to boost factory automation. This marks a significant step in Hyundai's partnership with Boston Dynamics to scale robotic manufacturing and design. The move is part of Hyundai's $21 billion US investment plan aimed at increasing efficiency and lowering costs, partly in response to tariffs. Despite a global sales dip last year, Hyundai's US sales rose 4% to 1.9 million units. Hyundai plans to produce 300,000 electric and hybrid vehicles annually at the facility, eventually scaling up to 500,000.

(interestingengineering.com)

Tech Robots

Trump's 100% Tariff on Foreign Films: A Hollywood Survival Fight

2025-05-06

Trump's 100% Tariff on Foreign Films: A Hollywood Survival Fight

Trump announced a 100% tariff on all foreign films to combat the decline of the American film industry and foreign competition. This move has sparked controversy, as many big-budget films are shot in multiple countries. While American films dominate the domestic market, other countries like China and New Zealand attract significant film productions through tax incentives, generating substantial economic benefits. The impact on the global film industry could be profound, highlighting the challenges and pressures facing the American film industry.

(www.pbs.org)

Tech

Scientifically Determining My Favorite T-Shirt Color

2025-05-06

Blogger Carl Öst Wilkens sought to simplify his wardrobe by scientifically determining his favorite t-shirt color. He created images of himself wearing different colored t-shirts using Photopea, then built an ELO-based arena app (generated using O4 Mini) to compare them pairwise. The experiment concluded with brown as his favorite and blue as his wife's favorite. He subsequently ordered second-hand shirts in those colors to test in real life.

(ostwilkens.se)

Misc ELO rating wardrobe simplification

Upgrading Capitalism: A Survival Guide

2025-05-06

Upgrading Capitalism: A Survival Guide

The author recounts personal experiences of the dot-com bubble burst in 2000 and the 2008 financial crisis, highlighting the inherent instability within capitalism despite its undeniable successes. He argues that while capitalism has lifted billions out of poverty, its core is inherently unstable. With a potential 'Papa Bear' level crash looming, the author suggests that ignoring the risks is as dangerous as blindly fighting the system. The essay calls for upgrading capitalism – retaining its strengths while mitigating its flaws – and invites readers to join the crucial conversation.

(upgradingcapitalism.substack.com)

Startup

arXivLabs: Experimenting with Community Collaboration

2025-05-06

arXivLabs is a framework for collaborators to build and share new arXiv features directly on the site. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to improve the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Development

Kim Jong-il, Kidnapped Filmmakers, and a Godzilla Rip-off: The Bizarre Story Behind Pulgasari

2025-05-05

Kim Jong-il, Kidnapped Filmmakers, and a Godzilla Rip-off: The Bizarre Story Behind Pulgasari

A seemingly abandoned building in Brooklyn houses the Spectacle theater, screening cult and cutting-edge cinema. Recently, it showcased Pulgasari, a bizarre Godzilla knockoff allegedly produced under the direction of Kim Jong-il. The film's story is even more outlandish than the movie itself. To elevate North Korea's film industry, Kim Jong-il kidnapped renowned South Korean director Shin Sang-ok and actress Choi Eun-hee, forcing them to create films. Their final collaboration, Pulgasari, became their ticket to escape. The film, a mix of political allegory and low-budget camp, is a uniquely demented spectacle.

(www.vanityfair.com)

Misc Kim Jong-il North Korean Cinema

arXivLabs: Experimental Projects with Community Collaborators

2025-05-05

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Have an idea to enhance the arXiv community? Learn more about arXivLabs.

(arxiv.org)

Tech

Roku OS Update Causes Washed-Out HDR Colors

2025-05-05

Roku OS Update Causes Washed-Out HDR Colors

A recent Roku OS update has caused washed-out colors in HDR content on several Roku apps, including Disney+. Complaints started appearing a week ago, affecting apps like Apple TV+ and Netflix as well. Roku is investigating, asking users to report their experiences and devices. Affected TVs include multiple TCL, Hisense, and Sharp models, while Roku streaming sticks seem unaffected. One user reported that plugging a streaming stick into a Roku TV solved the issue. Users report the problem impacting both movies and shows across various apps, causing significant viewing disruption.

(arstechnica.com)

Hardware Color Distortion

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