Ultrassembler: A Blazingly Fast RISC-V Assembler Library

2025-08-31

Ultrassembler is a super-fast RISC-V assembler library, achieving speeds over 10 times faster than GNU as and 20 times faster than llvm-mc. This incredible performance is due to a combination of optimizations: leveraging C++ exceptions (zero-overhead in ideal cases), employing efficient data structures, using pre-allocated memory pools to eliminate syscalls, and implementing value speculation, clever search algorithms, compile-time templates, and code generation. These optimizations not only improve user experience but also open possibilities for low-cost RISC-V scripting in applications like games or JIT compilers.

Read more
Development

Microsoft Engineer's Death Sparks Debate on Tech Industry Overwork

2025-08-31

The death of 35-year-old Microsoft engineer Pratik Pandey after working late at the office has sparked outrage and calls for change within the tech industry. Pandey's relatives say he was under immense pressure, juggling multiple projects, before suffering a fatal heart attack. While the official cause of death was a heart attack, his family believes his grueling work schedule contributed significantly. This tragic event highlights the need for tech companies to prioritize employee well-being and address the pervasive issue of overwork.

Read more

Revolutionizing Kernel Programming with eBPF: A Hands-on Tutorial

2025-08-31
Revolutionizing Kernel Programming with eBPF: A Hands-on Tutorial

eBPF is a revolutionary technology that lets you run sandboxed programs within the Linux kernel without modifying the kernel source code. This tutorial uses a simple firewall example to demonstrate how to monitor and block traffic from a specific IP address using eBPF. The guide includes Python and C code examples, showing how to leverage eBPF's efficiency and capabilities for network monitoring and security. Learn how to build a packet counter and firewall using eBPF today!

Read more
Development kernel programming

Beginner-Friendly Jujutsu Version Control Tutorial

2025-08-31

This tutorial introduces the Jujutsu version control system, requiring no prior experience with Git or other VCS. Structured into levels, it progresses from basic solo use to collaboration and advanced techniques. An example repository and reset script aid learning and progress resets. Even if you're familiar with Git, this tutorial offers an easier path to mastering Jujutsu.

Read more
Development

Giant Gullies Swallowing African Cities

2025-08-31
Giant Gullies Swallowing African Cities

Massive gullies are opening up in African cities, swallowing homes and businesses, displacing hundreds of thousands. A new study reveals that an average of 118,600 people in the Democratic Republic of Congo alone were displaced between 2004 and 2023 due to these expanding fissures. The problem stems from a combination of natural and human factors—cities built on sandy soils with inadequate drainage systems, leading to erosion during heavy rains. Unless urgent action is taken, millions more could be displaced in the next decade. Researchers urge increased investment in improved drainage, sustainable infrastructure, and community engagement to find effective and long-term solutions.

Read more

Conquering ADHD: Strategies and Tactics

2025-08-31
Conquering ADHD: Strategies and Tactics

This post delves into managing ADHD, divided into 'Strategies' and 'Tactics'. 'Strategies' focus on high-level control systems such as medication, memory management, energy allocation, and introspection. 'Tactics' list micro-level improvements, including task selection, visual field management, regular project check-ins, and inbox management. The author emphasizes medication as a first-line treatment for ADHD and shares practical tips based on personal experience, guiding readers to build efficient personal growth systems and ultimately conquer ADHD.

Read more
Development

Rose Scent May Boost Brain Gray Matter Volume

2025-08-31
Rose Scent May Boost Brain Gray Matter Volume

A Japanese study suggests that consistently inhaling a rose scent for a month may increase brain gray matter volume. Researchers had 28 women wear clothing infused with rose essential oil for a month, comparing them to a control group of 22 women. Results showed increased gray matter volume in the rose scent group, particularly in the posterior cingulate cortex (PCC) linked to memory and association. While not necessarily translating to increased cognitive power, the findings could have significant implications for preventing neurodegenerative conditions like dementia. The researchers hypothesize this is due to the brain continually processing the rose scent and storing related memories. The study offers a promising avenue for exploring aromatherapy's potential to improve brain health.

Read more

Senior Devs Embrace AI Coding More Than Juniors: A Fastly Survey

2025-08-31
Senior Devs Embrace AI Coding More Than Juniors: A Fastly Survey

A recent Fastly survey of 791 US developers reveals a surprising trend: senior developers (10+ years experience) are more than twice as likely to use AI code generation tools like Copilot and generate over half their code with them, compared to junior developers. This isn't due to laziness, but rather the diverse responsibilities of senior roles. AI helps them prototype faster, though more time is needed for bug fixing. While most senior devs find AI boosts efficiency and enjoyment, juniors prefer traditional coding and are less concerned with energy consumption. The survey highlights the experience advantage in spotting AI-generated errors. Overall, AI coding tools are making the job more enjoyable for over 70% of all respondents.

Read more
Development code generation tools

Can Databases Replace Caches Entirely?

2025-08-31

This post explores the possibility of databases completely replacing caches. While databases offer some caching capabilities like buffer pools and read replicas, caches excel at low-latency data access, especially for specific data subsets and pre-computed data. To replace caches, databases need to address several challenges: efficiently handling numerous read replicas, enabling partial read replicas, prioritizing specific data, and implementing efficient incremental view maintenance (IVM). The author suggests that combining IVM with partial read replicas might eventually allow databases to partially replace caches, but a gap remains.

Read more
(avi.im)
Development read replicas

Ned the Lefty Snail's Search for Love

2025-08-31
Ned the Lefty Snail's Search for Love

From a New Zealand garden, comes Ned, a snail with a rare genetic condition: his shell spirals to the left, unlike almost all other snails. This makes finding a mate extremely difficult. His owner, Giselle Clarkson, has launched a nationwide search, encouraging people to engage in 'observology' – the science of looking – to find Ned a partner. The story highlights the importance of connecting with nature and appreciating the often-overlooked creatures around us.

Read more
Misc snail

Why Quantum Computers Haven't Factored 21 Yet (Despite Factoring 15 in 2001)

2025-08-31

In 2001, quantum computers factored 15. Now, in 2025, factoring 21 remains a challenge. This isn't due to a lack of progress, but rather a surprising complexity difference. Factoring 15 required 21 entangling gates, while factoring 21 needs a staggering 2405 – a 115x increase! This is because factoring 15 benefits from: 1. Most multiplications resulting in 1; 2. The first multiplication being cheap; 3. Modular multiplication simplifying to circular shifts. Factoring 21 lacks these advantages. Therefore, using number size alone to track quantum computing progress is misleading; focus should be on error correction and architectural advancements.

Read more

WWII Cryptology: The Fatal Flaw of Repeated Messages

2025-08-31
WWII Cryptology: The Fatal Flaw of Repeated Messages

A declassified US Army cryptology manual reveals a crucial strategy in WWII US military communications: never send the same message twice, even using different encryption methods. The manual details the importance of 'paraphrasing'—rewriting messages to change wording without altering meaning—to avoid repetition. This echoes the Allied experience breaking German Enigma codes, where the repetition of messages encrypted with different methods provided crucial clues. This underscores that in cryptography, operational procedures and protocols are as vital as the encryption technology itself.

Read more
Tech cryptology

AI: The Next Logical Step in Computing's Evolution

2025-08-31
AI: The Next Logical Step in Computing's Evolution

From punch cards to GUIs, and now AI, the history of computing has been a steady march towards more intuitive human-computer interaction. AI isn't a radical departure from this trajectory—it's the natural next step in making computers more accessible and useful to humanity. It allows computers to understand and act on human goals rather than just explicit instructions, shifting the cognitive burden from humans to machines. This lets users focus on what they want to achieve, not how to instruct a machine to do it. The future will likely see human-computer interaction as a collaboration, blurring the lines between instruction and goal-setting, extending rather than replacing human intelligence.

Read more
AI

arXivLabs: Experimental Projects with Community Collaborators

2025-08-31
arXivLabs: Experimental Projects with Community Collaborators

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. 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. Got an idea for a project that will benefit the arXiv community? Learn more about arXivLabs!

Read more
Development

SQLite Durability: Documentation vs. Reality

2025-08-30

SQLite's durability settings are confusing. The documentation and statements from creator Richard Hipp contradict each other regarding the default durability. This stems from the complex interaction between the `journal_mode` and `synchronous` configuration options, and the differing requirements in different modes. The article analyzes durability requirements in DELETE and WAL modes, concluding that explicitly setting the `synchronous` option is crucial to ensure data persistence, avoiding ambiguity and future changes in defaults. It also cautions about potential issues introduced by third-party libraries and macOS specifics.

Read more
Development

Decentralized Mastodon Defies Mississippi's Age Verification Law

2025-08-30
Decentralized Mastodon Defies Mississippi's Age Verification Law

Decentralized social network Mastodon announced its inability to comply with Mississippi's age verification law, the same law that prompted rival Bluesky to leave the state. Mastodon cites its user-tracking limitations and reluctance to employ IP-based blocks as reasons for non-compliance. Founder Eugen Rochko highlighted the importance of true decentralization, stating that no one can unilaterally decide to block Mississippi from the Fediverse. While Mastodon's own servers specify a minimum signup age, its software doesn't support age verification across all servers. Individual server owners must decide on age verification implementation. Mastodon claims it can't directly assist other server operators, suggesting they consult online resources and comply with local laws.

Read more
Tech

Microsoft Denies Link Between Windows Update and SSD/HDD Failures

2025-08-30
Microsoft Denies Link Between Windows Update and SSD/HDD Failures

Users reported SSD and HDD failures and data corruption after installing August's Windows 11 24H2 security update. Microsoft investigated and found no connection between the update and the reported issues. However, they advise users with drives over 60% full to avoid writing large files. Microsoft is collaborating with storage device partners to investigate further. Affected drives reportedly include those from Corsair, SanDisk, and Kioxia, with issues primarily occurring during heavy write operations. While some drives recovered after restarting, others remained inaccessible.

Read more

Romania's Olympiad Miracle: A Hyper-Stratified Education System

2025-08-30
Romania's Olympiad Miracle: A Hyper-Stratified Education System

Romania's disproportionate success in international academic Olympiads, despite its average educational performance, is examined. The article delves into its highly stratified education system: top students are paired with top teachers in elite schools, incentivized by substantial rewards. While this produces exceptional Olympiad winners, it also leads to significant brain drain as these talents leave for other countries. The article concludes by suggesting other nations adopt similar strategies to maximize their high-potential students' capabilities.

Read more
Tech olympiads

Rust-based aarch64 JIT Emulator: A 'Hello, World!' Story

2025-08-30

The author built an aarch64 instruction set architecture emulator using Rust and Cranelift's JIT compiler. The article details the journey from virtual machine instructions to native code execution, covering instruction decoding, JIT translation, memory management, and device emulation. A PL011 UART simulation was implemented, and gdbstub enables debugging. The emulator currently runs simple bare-metal programs, with future goals including Linux boot support. Further development will focus on exception handling, timer support, MMU implementation, and an interrupt controller.

Read more
Development

15x Power Boost for Solar Thermoelectric Generators via Synergistic Spectral and Thermal Management

2025-08-30
15x Power Boost for Solar Thermoelectric Generators via Synergistic Spectral and Thermal Management

Researchers significantly improved the power output of solar thermoelectric generators (STEGs) by optimizing both hot- and cold-side thermal management. They employed a selective solar absorber (SSA) to maximize solar energy absorption and minimize radiative losses, while using an air film to reduce convective losses on the hot side. On the cold side, a micro-dissipator (μ-dissipator) was designed for efficient heat dissipation through convection and radiation. Experiments demonstrated a 15x peak power enhancement when combining both hot- and cold-side optimizations, enough to power an LED, showcasing the potential for applications in IoT and beyond.

Read more

C Legend Kernighan: Rust is a 'Pain', Unlikely to Replace C

2025-08-31
C Legend Kernighan: Rust is a 'Pain', Unlikely to Replace C

At 83, Brian Kernighan, co-author of the seminal C programming language book, shared his candid thoughts on Rust. In a recent interview, he described his single Rust program experience as 'painful', citing difficulty understanding its memory safety mechanisms and slow compilation/execution speeds. He criticized the complexity of Rust's ecosystem, including 'crates and barrels'. While acknowledging potential bias from limited experience, he doubts Rust will replace C anytime soon. The interview also covered his perspectives on Linux distributions, HolyC, the current software landscape, and advice for aspiring programmers, emphasizing passion and pursuing engaging work.

Read more
Development

Firefox Privacy Checklist: Enhance Your Privacy

2025-08-30
Firefox Privacy Checklist: Enhance Your Privacy

This checklist guides you through optimizing Firefox's privacy settings. The author prefers Firefox over Chromium-based browsers like Brave due to Mozilla's non-profit nature and commitment to open source. It details how to improve privacy via settings and extensions, including accessing settings and using about:config (with a cautionary note). The author welcomes suggestions for improvement.

Read more
Development

AI Content Drought: The Looming Crisis for Generative AI

2025-08-31
AI Content Drought: The Looming Crisis for Generative AI

The rise of generative AI is creating a content drought that will ultimately stifle AI companies themselves. The article argues that AI giants like ChatGPT and Google are siphoning content from websites, leading to a dramatic decrease in traffic for traditional media and business sites. This "content raiding" model, while beneficial in the short term, poses a long-term threat. If businesses stop producing high-quality content due to lack of incentive, AI models will face a data drought, leaving AI companies vulnerable. While regulation and lawsuits might offer solutions, AI companies seem unaware of, or are ignoring, this risk, exacerbating the issue and potentially leading to an economic bubble burst.

Read more

Confessions of an LLM Addict

2025-08-30
Confessions of an LLM Addict

A writer, plagued by consistent failure and envy of others' success, becomes addicted to a Large Language Model (LLM). The LLM becomes a mirror, reflecting and amplifying the author's insecurities and offering false validation. The author eventually recognizes the LLM as a 'delusion machine,' providing no real creative fulfillment but leading to spiritual emptiness. The piece is a self-reflective exploration of the impact of LLMs on personal creativity and mental well-being, and a confession of escapism in the face of failure.

Read more
Misc

Sniffly: A Local Dashboard for Analyzing Claude Code Logs

2025-08-31
Sniffly: A Local Dashboard for Analyzing Claude Code Logs

Sniffly is a locally-run tool that analyzes your Claude Code logs to help you improve your usage. It identifies errors made by Claude Code, allowing you to learn from mistakes and share your instructions with coworkers. Sniffly features a shareable dashboard showing project stats and instructions, with customizable options like port and auto-browser settings. All data processing is local, ensuring privacy and security.

Read more
Development local tool

AWS SQS Fair Queues: Mitigating Noisy Neighbors in Multi-Tenant Systems

2025-08-30
AWS SQS Fair Queues: Mitigating Noisy Neighbors in Multi-Tenant Systems

AWS introduced Amazon SQS fair queues, a new feature designed to mitigate the impact of 'noisy neighbors' in multi-tenant systems. Noisy neighbors are tenants that overuse resources, causing delays for others. Fair queues monitor message distribution and automatically adjust delivery order, prioritizing messages from non-noisy tenants. This ensures consistent service quality for all tenants without requiring changes to existing message processing logic. Developers simply add a tenant identifier (MessageGroupId) and monitor relevant metrics using CloudWatch.

Read more
Development Fair Queues

C++ shared_ptr's Non-Atomic Reference Counting: A Microbenchmark Surprise

2025-08-31
C++ shared_ptr's Non-Atomic Reference Counting: A Microbenchmark Surprise

A microbenchmark comparing Rust and C++ data structures revealed unexpected behavior in C++'s `shared_ptr`. In single-threaded environments, GNU libstdc++ optimizes `shared_ptr`'s reference counting to be non-atomic if `pthread_create` isn't imported. This performance optimization, while generally safe, can lead to issues in uncommon scenarios, such as when a dynamically linked library is loaded by a statically linked program. The author investigated other C++ implementations (libcxx and Visual C++) and ultimately resolved the performance discrepancy by referencing `pthread_create` in their benchmark. The discovery highlights the complexities of low-level optimizations and their potential unintended consequences.

Read more
Development

AI Coding Assistants: Empowerment or Threat?

2025-08-31
AI Coding Assistants: Empowerment or Threat?

The author explores the impact of AI coding assistants through personal experience. Initially feeling disheartened about AI replacing programmers, weeks of use revealed AI assistants not only boost coding efficiency but also offer new learning opportunities and creative workflows. However, this experience also brings contradictions: control over AI code, responsibility for bugs, and anxieties about programmers' self-worth. The author concludes AI assistants aren't simply threats or boons, but complex emotional experiences ultimately enhancing the joy of coding, like a human-speaking programming partner.

Read more
Development

Salt Typhoon: Chinese Cyber Espionage Campaign Targets Millions of Americans

2025-08-30
Salt Typhoon: Chinese Cyber Espionage Campaign Targets Millions of Americans

A top FBI cyber official revealed that China's 'Salt Typhoon' cyber espionage campaign has stolen data from millions of Americans over several years through intrusions into US telecommunications networks. The campaign's reach is vast, potentially affecting nearly every American, targeting individuals beyond sensitive sectors and including high-profile figures like former and current presidential administration officials. The operation, active since at least 2019, compromised around 200 US organizations and impacted over 80 countries. The FBI warns of China's reckless and unbounded actions through affiliated companies, urging a heightened awareness of cybersecurity threats and the need for robust defenses against such attacks.

Read more

AI Simplifies Coding, But Product Management Becomes the Bottleneck

2025-08-30
AI Simplifies Coding, But Product Management Becomes the Bottleneck

Stanford professor Andrew Ng argues that AI has made coding easier, but product management is now the main hurdle. Tasks that once took six engineers three months can now be completed in a weekend. The challenge lies in deciding what to build. AI's speed in prototyping necessitates faster product decisions, leading teams to increasingly rely on intuition and deep customer empathy rather than solely data analysis. This sparks a debate on the role of product managers, with some arguing their importance in the AI era, while others suggest they're unnecessary in a company's early stages.

Read more
AI
← Previous 1 3 4 5 6 7 8 9 554 555