Published: 2025-03-15 | Origin: Hacker News

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Published: 2025-03-15 | Origin: /r/programming

TracePerf is a tool designed for advanced console logging and performance tracking in Node.js applications. It allows users to visualize execution flows using ASCII art, identify bottlenecks, and receive optimization suggestions. The tool includes features like structured logs, conditional modes, and memory tracking to enhance debugging efficiency. Additionally, TracePerf offers a browser-compatible version for frontend applications. Feedback from users is valued and taken seriously, with available documentation for further details. The tool is released under the MIT license.

Published: 2025-03-15 | Origin: Hacker News

The study published in *Scientific Reports* explores the potential use of human DNA found in air and dust as evidence in criminal investigations, particularly in situations where visible traces are absent, such as in a vacated drug factory. Samples were taken from various indoor settings with differing occupancy and cleaning practices, and DNA profiles were analyzed against those of 55 known individuals. Results indicated that indoor dust is a rich source of DNA, providing a historical record of past occupants. Notably, DNA was also detected in ultra

Published: 2025-03-15 | Origin: /r/ruby

The content discusses the use of Postgres as a versatile database management system, particularly in web applications where it handles multiple users simultaneously. It highlights the challenges of maintaining data consistency while serving concurrent clients and introduces a rudimentary booking platform for event reservations written primarily in SQL, with minimal Ruby code. The article promises to explore transaction-related issues and the isolation property of transactions, starting with the creation of a bookings table that includes customer identification and reserved seats. It emphasizes the importance of atomicity, ensuring that multiple

Published: 2025-03-15 | Origin: /r/programming

The article critiques Go's error handling and its use of multiple return values, suggesting that these features complicate the language unnecessarily. The author highlights several common criticisms of Go, including the lack of sum types, enums, null safety, const correctness, and generics. They argue that multiple return values, while seemingly harmless, negatively influence the language's design and create complexity, as Go does not have true tuples like some other languages. Instead, to achieve similar functionality, developers must define structs. Overall,

Published: 2025-03-15 | Origin: /r/programming

Davis Lu, a 55-year-old former Senior Software Developer at EATON Corporation, has been sentenced to 10 years in prison for deploying a “kill switch” that disrupted his employer's systems after he was laid off in September 2019. Lu created apps that would trigger chaos in the company's systems when his account was disabled in Active Directory. His hidden server in Kentucky managed these destructive apps, named "Hakai" (Japanese for "destruction") and "Hūnshu

Published: 2025-03-15 | Origin: Hacker News

The concept of Kanban is often reduced to specific practices like using whiteboards and sticky notes, which can oversimplify its broader principle. Originally, Kanban referred to a visual signal indicating various needs or requests. In typical Kanban systems, a sticky note symbolizes work, conveying information about tasks based on its context, such as color or placement. The author advocates for moving beyond the standard Kanban board design to recognize that Kanban’s essence lies in visual signals. An example provided is an index

Published: 2025-03-15 | Origin: /r/programming

The content highlights the challenges of managing data consistency in distributed systems, where multiple processes or services can simultaneously read and write to the same data. It emphasizes the issue of data corruption, race conditions, and unwanted duplicates that can arise from such concurrent updates. To mitigate these risks, distributed locks are introduced as a solution, allowing only one process to modify a resource at a time. The discussion outlines the need for distributed locking, explores its implementation in popular tools and systems like Redis, ZooKeeper, databases,

Published: 2025-03-15 | Origin: /r/programming

Software applications typically use intermediaries, like servers, to handle data streaming, sharing, and storage. When a client requests data, the service retrieves it and forwards it, which can lead to increased latency, resource consumption, and scalability issues as demands grow. The Valet Key pattern offers a solution by allowing clients direct access to data without intermediaries. It involves a process where clients request access, the intermediary service authorizes them, generates a short-lived security token (valet key) that specifies data

Published: 2025-03-15 | Origin: /r/programming

Mr. Plan ₿ Publication is a platform welcoming both novice and seasoned writers to share and promote their articles. The author, Terrance Craddock, reflects on his experience of deleting a large Java project and reprogramming it in PHP4, despite his colleagues' concerns about deviating from established "best practices." He argues that the tech industry has turned these guidelines into rigid dogma, stifling creativity. Craddock suggests that many of the most innovative software solutions have emerged from breaking

Published: 2025-03-15 | Origin: /r/programming

The content emphasizes the serious consideration given to user feedback and provides an overview of "nubmq," a high-performance key-value (KV) storage engine built in pure Golang. Designed for high-frequency, contention-heavy workloads, nubmq features native pub-sub support and operates without dependencies. Key functionalities include the ability to dynamically scale, immediate key expiration and removal, polling-free notifications, and non-blocking I/O with dedicated read and write buffers for each connection. The system has been benchmarked on an M

Published: 2025-03-15 | Origin: Hacker News

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Published: 2025-03-15 | Origin: Hacker News

This work explores the use of Dynamic Tanh (DyT) as a replacement for normalization layers in Transformers, arguing that Transformers can perform as well or better without normalization. DyT is defined as an element-wise operation, $$\mathrm{DyT}(\boldsymbol{x}) = \tanh(\alpha \boldsymbol{x})$$, inspired by the S-shaped input-output mappings produced by layer normalization. The incorporation of DyT allows Transformers to achieve performance parity with normalized models, often without the

Published: 2025-03-15 | Origin: Hacker News

The content discusses an embedded Lisp interpreter called eli, developed over 15 years and initially motivated by personal projects. The interpreter has been implemented in various languages, with significant development occurring in eli-java, and efforts are also underway to integrate it with Common Lisp. The author aims to achieve reasonable performance by focusing on Python. The document outlines fundamental types and structures within the interpreter, such as boolean values (true/false), numeric types (integers, floating-point values), sequences (lists, mappings), and

Published: 2025-03-15 | Origin: /r/programming

The author recounts taking down two production servers over the past week due to issues stemming from old, unsupported software, despite prior testing of code changes. They highlight that technologies like Rails 6.x, Ubuntu 18.04, and PostgreSQL 13 are outdated, reflecting on how quickly software can become obsolete. The author emphasizes that the real challenges in software engineering lie not in building applications or learning languages, but in naming things, navigating interpersonal dynamics, ensuring clear communication between systems, and dealing with

Published: 2025-03-14 | Origin: /r/programming

The author reports ongoing steady progress in their project, with notable developments shared since mid-February, including 313 commits totaling 1653. They are focusing on completing individual source files, which minimizes context switching and highlights quirky behaviors influenced by the original engineers of the components. One specific observation involves the peculiar way Microsoft Visual C++ generates code for while loops, converting them into a combination of if and do...while statements. This revelation came while analyzing the code for `dcmemcard.cpp`, particularly

Published: 2025-03-14 | Origin: /r/ruby

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Published: 2025-03-14 | Origin: /r/ruby

The article by Adam McCrea, originally published on Sidekiq's Wiki, discusses the scalability of Sidekiq, a background job processing tool. It emphasizes that while scaling can be as simple as adding more servers, proper optimization and server sizing are crucial for efficiency. McCrea outlines key architectural components of Sidekiq and introduces essential terms related to its operation. He provides recommendations for new applications, suggesting that limiting the number of queues (preferably two or three) can simplify scaling

Published: 2025-03-14 | Origin: /r/ruby

The blog discusses performance optimizations for generating JSON in Ruby, specifically focusing on the json gem. Notably, @byroot's blog series highlights that a significant amount of time in JSON generation is spent in the `convert_UTF8_to_JSON()` function, which converts Ruby Strings to JSON Strings. A lookup table method introduced by @byroot has been implemented in the gem, but further attempts have been made to optimize this process using SIMD instructions, despite the complexities and portability issues involved. The post compares

Published: 2025-03-14 | Origin: Hacker News

The author is working on a font characterized by reversed letterforms set against a vertically striped background, drawing inspiration from Schaefer Versalien and modifying elements from their stencil font, Arugula. The focus is on the technical aspects of kerning, particularly between the letters L and T. Traditional kerning methods, like using GPOS lookups, are ineffective due to the nature of the font's design, where overlapping black parts lead to undesirable visual effects. Instead, the author proposes using GSUB