StringZilla v4: CUDA-Accelerated SIMD String Processing Library Released

2025-09-23
StringZilla v4: CUDA-Accelerated SIMD String Processing Library Released

StringZilla v4 is here! This SIMD-first string processing library now supports CUDA, meaning it's blazing fast not only on CPUs but also on GPUs! Version 4 boasts numerous new features, including GPU-accelerated dynamic programming algorithms, several hash functions (including a novel AES-based one), and biosequence fingerprinting using 52-bit integers. Benchmarks show StringZilla v4 achieving over 500 GCUPS in Levenshtein distance calculations, outperforming other libraries by tens or even hundreds of times. The library is Apache 2.0 licensed and free for commercial use.

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Development

Reverse Engineering a BIOS Update Fix for an Old Dell XPS 15

2025-01-11
Reverse Engineering a BIOS Update Fix for an Old Dell XPS 15

Driven by nostalgia, the author attempted to update the BIOS of their old 2011 Dell XPS 15 L502X. Hardware issues and a dead battery resulted in a failed BIOS update. Using Ghidra, the author reverse-engineered the update program, pinpointing the faulty code. By modifying the code to bypass battery checks, the BIOS update was finally successful. This is a captivating tale of hardware repair and reverse engineering, showcasing the author's persistence and technical skills.

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Linux 6.14 Kernel: KVM Virtualization Gets a Boost

2025-01-31

The upcoming Linux 6.14 kernel includes a significant number of updates to its Kernel-based Virtual Machine (KVM) subsystem. Improvements include removing redundant TLB flushes on AMD CPUs, an overhaul of the KVM x86 CPUID feature infrastructure for better vCPU capability tracking, continued work on Intel Trust Domain Extensions (TDX) VM support, refined VM-exit handling for improved VMX/SVM parity, and added Zabha, Svvptc, and Ziccrse extension support for RISC-V KVM guests. These changes promise enhanced performance and stability for virtual machines.

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Development

Critical Flaws in US Water Infrastructure Patched After Joint EPA & Manufacturer Effort

2025-06-10
Critical Flaws in US Water Infrastructure Patched After Joint EPA & Manufacturer Effort

Researchers discovered nearly 400 exposed US water systems vulnerable on the internet. They contacted both the software manufacturer and the EPA. The EPA swiftly responded, prioritizing over 300 unauthenticated systems and achieving a 24% remediation rate within nine days. A month later, 58% of vulnerable systems were secured, and the manufacturer enhanced security measures, including multi-factor authentication.

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My Self-Hosted Journey: From Container Runtimes to Monitoring

2025-04-01
My Self-Hosted Journey: From Container Runtimes to Monitoring

For a year, I've been immersed in self-hosting, experimenting with various software and building my own dashboards and applications. This post summarizes my experiences and some useful yet less popular software. I used Docker, Podman, and Kubernetes as container runtimes, Portainer and Dockge as web UI management tools, Pangolin as a VPN and reverse proxy, Caddy as a lightweight reverse proxy, NetBird as a VPN, and Uptime Kuma and Gotify for monitoring and alerts respectively. I also recommend some excellent software resource lists to help you find more self-hosted applications suitable for your needs.

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Development

Linux Kernel Embraces Rust: The End of C's Memory Safety Nightmares?

2025-02-20

Greg KH, a long-time Linux kernel maintainer, advocates for using Rust to rewrite parts of the kernel in an LKML post. He argues that a significant portion of kernel bugs stem from subtle flaws in C, which Rust's memory safety features would effectively prevent. While a complete migration to Rust is unrealistic, writing new code and drivers in Rust would dramatically reduce bugs and improve development efficiency. Greg urges kernel developers to embrace Rust for the long-term health of the Linux project.

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Development

Huawei Linked to EU Parliament Bribery Scandal: Five Charged

2025-03-19
Huawei Linked to EU Parliament Bribery Scandal: Five Charged

Belgian prosecutors announced on Tuesday that five individuals have been charged in connection with a bribery investigation at the European Parliament allegedly linked to China's Huawei. Five were detained last week; four have been arrested and charged with active corruption and involvement in a criminal organization, while a fifth faces money laundering charges and has been conditionally released. Prosecutors did not disclose names but said new searches took place Monday at European Parliament offices. The alleged corruption, prosecutors say, occurred "very discreetly" since 2021 under the guise of commercial lobbying, involving payments for political stances or excessive gifts like food, travel, and football tickets. Huawei responded, stating it takes the allegations seriously and maintains a zero-tolerance policy towards corruption.

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Aging Stem Cells: The Culprit Behind Middle-Aged Spread?

2025-05-02
Aging Stem Cells: The Culprit Behind Middle-Aged Spread?

New research unveils the cellular mechanism behind age-related abdominal fat accumulation. Scientists discovered that aging triggers the emergence of a new type of adult stem cell, called committed preadipocytes (CP-As), within white adipose tissue (WAT). These CP-As actively generate new fat cells, especially in the abdomen, with their activity significantly increasing in middle age. The leukemia inhibitory factor receptor (LIFR) signaling pathway plays a crucial role in this process. This finding offers a novel therapeutic target for preventing belly fat and extending healthy lifespan.

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arXivLabs: Experimenting with Community Collaboration

2025-07-15
arXivLabs: Experimenting with Community Collaboration

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 partners only with those who share them. Got an idea for a project that will benefit the arXiv community? Learn more about arXivLabs.

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Development

ByzFL: Building Trustworthy AI Without Trusting Data Sources

2025-04-10
ByzFL: Building Trustworthy AI Without Trusting Data Sources

Current AI models rely on massive, centralized datasets, raising security and privacy concerns. Researchers at EPFL have developed ByzFL, a library using federated learning to train AI models across decentralized devices without centralizing data. ByzFL detects and mitigates malicious data, ensuring robustness and safety, particularly crucial for mission-critical applications like healthcare and transportation. It offers a novel solution for building trustworthy AI systems.

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Philips Hue Prices to Increase in the US Due to Tariffs

2025-06-25
Philips Hue Prices to Increase in the US Due to Tariffs

Signify, the parent company of Philips Hue, has confirmed price increases for its smart lighting and security products in the US, effective July 1st. The increase is a direct result of tariffs on Chinese imports. While specific price changes and affected products haven't been detailed, the statement suggests the entire Hue lineup may be impacted. The new Hue Play Wall Washer already shows a higher US price compared to its European counterpart. This price hike could push US consumers towards more affordable alternatives. Signify warns of potential further price increases depending on future tariff adjustments.

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Bose's Magical Suspension Finally Makes it to Production Cars

2025-05-03
Bose's Magical Suspension Finally Makes it to Production Cars

Twenty years ago, a video of a Lexus LS400 with Bose's prototype electromechanical proactive suspension went viral, showcasing its seemingly impossible ability to handle any terrain. Due to production challenges, the project was shelved. Now, ClearMotion has revived the technology, integrating it into the Nio ET9, marking its debut in mass production. Future partnerships with Porsche and other automakers promise to bring this once-futuristic technology to a wider range of vehicles.

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Your Brain Rewires Itself in Real Time When Listening to Rhythms

2025-06-12
Your Brain Rewires Itself in Real Time When Listening to Rhythms

New research from Aarhus University and the University of Oxford reveals a fascinating finding: when you hear a steady rhythm or musical tone, your brain doesn't passively receive the sound; it dynamically reorganizes itself. Researchers developed FREQ-NESS, a novel neuroimaging method, to map brain organization with unprecedented precision, showing the interplay of brainwaves across multiple networks. This breakthrough could revolutionize our understanding of brain function and has implications for brain-computer interfaces and clinical diagnostics.

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Tech

Pointer Bit Manipulation: Unlocking Hidden Performance with Unused Bits

2025-09-22
Pointer Bit Manipulation:  Unlocking Hidden Performance with Unused Bits

A 64-bit pointer can address far more memory than even the most powerful supercomputers need. This article explores pointer tagging, a clever technique leveraging unused bits in pointers (typically in the upper and lower ranges) to store extra data, such as type information or flags. This improves memory efficiency and performance by reducing cache misses and streamlining dynamic polymorphism. The article illustrates this with a C++ implementation, demonstrating how to pack and unpack data within pointers and showcasing its application in abstract syntax trees and other complex data structures.

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Development pointer tagging

Scientists Map the Complete Neural Pathway for Sensing Cool Temperatures

2025-08-04
Scientists Map the Complete Neural Pathway for Sensing Cool Temperatures

Researchers at the University of Michigan have, for the first time, mapped the entire neural pathway responsible for sensing cool temperatures, from the skin to the brain. This groundbreaking discovery reveals a dedicated pathway for cool temperatures, separate from the pathway for hot temperatures, highlighting evolution's elegant solution for precise thermal perception. A key component is a spinal cord amplifier; without it, the cool signal is lost. This research not only deepens our understanding of fundamental biology but also holds significant implications for treating cold-related pain, such as that experienced by chemotherapy patients.

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Project Mini Rack: Compact, Portable Homelabs

2025-01-17

Jeff Geerling announces Project MINI RACK, an open-source project for building compact 10" homelabs. The project provides resources for hardware and software, showcasing three example mini-racks: a battery-backed solar-powered rack, a low-cost Raspberry Pi cluster, and a high-performance compute-dense rack. A build showcase encourages community contributions and sharing of designs. This addresses the need for smaller, more portable homelab solutions.

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Megakernels: Smashing LLM Inference Latency

2025-05-28
Megakernels: Smashing LLM Inference Latency

To boost the speed of large language models (LLMs) in low-latency applications like chatbots, researchers developed a 'megakernel' technique. This fuses the forward pass of a Llama-1B model into a single kernel, eliminating the overhead of kernel boundaries and memory pipeline stalls inherent in traditional multi-kernel approaches. Results show significant speed improvements on H100 and B200 GPUs, outperforming existing systems by over 1.5x and achieving drastically lower latency.

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Critical Flaw Found in Widely Used TETRA Encryption

2025-08-07
Critical Flaw Found in Widely Used TETRA Encryption

Researchers have uncovered critical vulnerabilities in the encryption algorithms used in TETRA radio systems, widely adopted by police and military forces globally. The study reveals that TEA1, one of the TETRA standard's encryption algorithms, has a key reduction vulnerability, weakening it to a mere 32 bits and making it crackable in under a minute. Furthermore, flaws in the end-to-end encryption (E2EE) implementation reduce the key size to 56 bits, potentially allowing interception of voice and data communications. These vulnerabilities affect numerous users employing the TCCA E2EE scheme, including law enforcement and military agencies across Europe, the Middle East, and beyond. While some algorithms have geographical usage restrictions, TEA1 is also used in critical infrastructure in the US and elsewhere. The findings highlight significant global communication security risks and necessitate urgent security updates to TETRA systems.

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Tech

Arabidopsis Wound Healing: Unraveling the Low Oxygen and Ethylene Signaling Pathways

2025-07-09
Arabidopsis Wound Healing: Unraveling the Low Oxygen and Ethylene Signaling Pathways

Researchers utilized Arabidopsis to investigate the molecular mechanisms behind plant wound healing. They discovered that low oxygen and ethylene signaling pathways play crucial roles in the wound response. Through a series of experiments, including gene cloning, surgical injury, chemical treatments, and oxygen measurements, the study revealed the expression regulation of specific genes during wound healing and the roles of related proteins in cell wall formation and periderm regeneration. This research enhances our understanding of plant wound responses and offers insights into strategies for improving plant resilience in agriculture and horticulture.

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Fatal Xiaomi SU7 Self-Driving Accident: Police Obtain Data from Xiaomi

2025-04-01
Fatal Xiaomi SU7 Self-Driving Accident: Police Obtain Data from Xiaomi

A fatal accident involving a Xiaomi SU7 electric vehicle on March 29 resulted in three deaths. Xiaomi stated it's cooperating with the police investigation, providing driving and system data. The vehicle was in "Navigate on Autopilot" intelligent assisted driving mode at 116 kph when the accident occurred. Despite a system warning, the driver's intervention resulted in a collision, leading to the fatalities. The incident may impact Xiaomi's stock price and the development of self-driving technology.

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Anthropic's Claude Gets a Blog (with a Human Editor)

2025-06-07
Anthropic's Claude Gets a Blog (with a Human Editor)

Anthropic has launched a blog, Claude Explains, primarily authored by its AI model, Claude. While presented as Claude's work, the posts are actually refined by Anthropic's expert team, adding context and examples. This highlights a collaborative approach, showcasing AI's potential for content creation but also its limitations. Other media organizations' experiments with AI writing have faced similar challenges, including factual inaccuracies and fabrications. Anthropic's continued hiring in writing-related roles suggests a blended human-AI approach.

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AI

Light Pollution Extends Birdsong by 50 Minutes a Day

2025-08-27
Light Pollution Extends Birdsong by 50 Minutes a Day

A new study reveals that light pollution is disrupting birds' biological clocks. Analyzing over 60 million recordings of birdsong, researchers found that in brightly lit areas like cities, birdsong is extended by an average of 50 minutes daily. Birds start singing 18 minutes earlier and stop 32 minutes later compared to those in darker areas. This extended activity could impact rest, foraging, and reproduction, potentially exacerbating global bird population declines. The study highlights the significant and often overlooked impact of light pollution on wildlife.

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IBM and GlobalFoundries Settle Multibillion-Dollar Lawsuits

2025-01-03
IBM and GlobalFoundries Settle Multibillion-Dollar Lawsuits

IBM and GlobalFoundries have settled all their ongoing litigation, encompassing breach of contract, patent, and trade secret disputes. Details of the confidential settlement remain undisclosed, but both companies stated it opens the door for future collaboration. The dispute, initiated by IBM in 2021, stemmed from a $1.5 billion chip manufacturing agreement and accusations by GlobalFoundries of IBM's unlawful disclosure of trade secrets. This resolution clears the path for future projects, particularly IBM's collaboration with Rapidus on 2nm chip technology.

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Syftr: An Open-Source Framework for Automating Generative AI Workflow Optimization

2025-05-31
Syftr: An Open-Source Framework for Automating Generative AI Workflow Optimization

Building effective generative AI workflows faces a combinatorial explosion of choices. Syftr is an open-source framework that uses multi-objective Bayesian optimization to automatically identify Pareto-optimal workflows across accuracy, cost, and latency constraints. Syftr efficiently searches a vast configuration space to find workflows that optimally balance accuracy and cost, achieving significant results on the CRAG Sports benchmark, reducing cost by nearly two orders of magnitude. Syftr supports various components and algorithms and is compatible with other optimization tools, providing an efficient and scalable approach to building generative AI systems.

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Oxford Falls Out of UK's Top 3 Universities

2025-09-21
Oxford Falls Out of UK's Top 3 Universities

In the 2026 Times and Sunday Times Good University Guide, Oxford University fell out of the top three UK universities for the first time, dropping to fourth place alongside Cambridge. Durham University claimed third place, while the London School of Economics and Political Science (LSE) retained its top spot for the second consecutive year. St Andrews University held second place. Durham's significant improvement in student teaching quality evaluations propelled its rise.

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uWrap: A Blazing-Fast Text Wrapping Utility (<2KB)

2025-04-04
uWrap: A Blazing-Fast Text Wrapping Utility (<2KB)

uWrap is a 10x faster and more accurate text wrapping utility under 2KB (minified), MIT licensed. Designed for efficient row height prediction in list and grid virtualization, optimizing UI performance for large scrollable datasets. It cleverly overcomes Canvas2D's lack of text wrapping APIs and the performance limitations of measureText(). Benchmarks show it significantly outperforms canvas-hypertxt in both speed and accuracy. Currently supports Latin character sets, with more features planned.

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Development text wrapping

Xbox 360 Hack: BadUpdate Lets You Run Homebrew Without Opening the Console

2025-03-17
Xbox 360 Hack: BadUpdate Lets You Run Homebrew Without Opening the Console

Xbox 360 modders have discovered BadUpdate, a new software exploit allowing homebrew apps and games to run via USB, bypassing Microsoft's Hypervisor. Unlike previous methods, this doesn't require opening the console. While it needs manual patching of executables and isn't perfectly reliable, requiring re-application on each boot, BadUpdate offers a new way to access the Xbox 360's homebrew scene, including games, apps, and emulators.

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Game

Beyond Good and Evil: A Philosophical Contemplation of Entanglement with Nature

2025-07-27
Beyond Good and Evil: A Philosophical Contemplation of Entanglement with Nature

This article explores the entangled relationship between humanity and nature, and the ethical dilemmas inherent within this relationship. From the perspectives of philosopher Friedrich Nietzsche and eco-philosopher Val Plumwood, the article challenges anthropocentric views, arguing that humanity is not a separate entity from nature but rather a part of its food chain. Plumwood's crocodile attack experience, along with Nietzsche's critique of free will and suffering, prompts a re-evaluation of our relationship with nature, considering how to transcend traditional dualistic morality to coexist harmoniously. The article also warns against the risks of blindly pursuing purity and health, pointing out that embracing entanglement is not easy and requires us to redefine ourselves and our interests.

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Misc Nietzsche

AI Bubble? Microsoft's $4 Trillion Valuation and the Academic Pushback

2025-08-06
AI Bubble? Microsoft's $4 Trillion Valuation and the Academic Pushback

Microsoft's valuation surged past $4 trillion, fueled by its AI cloud computing business, sparking debate about an AI bubble. Concurrently, US professors are organizing against the unchecked expansion of AI in higher education, citing concerns about working conditions, academic freedom, and the quality of student learning. The article highlights record-high AI investment, potentially acting as a private-sector stimulus, but questions the sustainability of this situation.

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Tech

Mini SSD Card: A Potential Solution for Portable Gaming Storage Bottlenecks

2025-08-20
Mini SSD Card: A Potential Solution for Portable Gaming Storage Bottlenecks

Games are getting increasingly large, often exceeding 100GB, due to factors like high-resolution textures, detailed graphics, extensive audio files, and support for multiple languages. To address the slow storage speeds in portable gaming devices, the Mini SSD card has emerged as a potential solution. It aims to deliver speeds comparable to internal SSDs without requiring users to disassemble their devices for upgrades. While not yet a formally ratified standard, it offers a convenient storage upgrade option for gamers.

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