Published: 2024-10-07 | Origin: Hacker News

The content discusses benchmarking and comparing the performance of hashmaps and ordered data structures, specifically b-trees, in various scenarios. Many scripting languages use hashmaps for associative data structures, but they come with disadvantages. B-trees, while typically slower than hashmaps, present varying performance expectations among users. The author conducts benchmarks to compare these data structures by measuring lookup times of randomly generated integers. Initial tests showed b-trees performing significantly worse than hashmaps. A subsequent benchmark changes the approach by averaging over

Published: 2024-10-07 | Origin: /r/programming

SzamlaBridge and PlaceOfCards, two projects that utilized Firebase, encountered challenges such as difficult schema migrations and query limitations. To address these issues, they migrated to Supabase, which resolved their problems and provided valuable learning experiences, despite the tedious nature of migration. The text discusses common misconceptions about NoSQL databases, emphasizing that while these databases can be beneficial, they may not be suitable for small teams or startups that frequently change data and requirements. The process of “joins” in NoSQL involves

Published: 2024-10-07 | Origin: Hacker News

Octothorpes refer to hashtags and backlinks used across the web to link various URLs and resources, allowing for a decentralized approach beyond commercial platforms. Octothorpe servers function similarly to web rings and blog rolls, serving as searchable feeds that small communities can manage independently. To participate in an Octothorpes Ring, a domain must be verified and registered, which helps manage spam and other unwanted content. Registration involves adding a unique verification code to the domain's DNS records. After verification, domains can

Published: 2024-10-07 | Origin: /r/programming

The article discusses how major services like AWS and Netflix achieve fast response times despite complex architectures involving numerous microservices. The key to their efficiency lies in caching, which can significantly improve system scalability by reducing the need for repetitive database queries that slow down response times. Caching allows for the storage and reuse of responses, which eases the load on the system, especially for high-traffic scenarios, such as a large news website. To provide a thorough understanding of caching, the content is divided into two

Published: 2024-10-07 | Origin: Hacker News

The SQLite library is consolidated into a single large C file named "sqlite3.c," known as "the amalgamation," which simplifies deployment by reducing the complexity of file management. The amalgamation enhances performance, allowing for better compiler optimizations, resulting in machine code that is 5% to 10% faster. As of version 3.37.0 (November 2021), the SQLite library comprises 133 source files—111 are C code files, and 22 are C header files

Published: 2024-10-06 | Origin: /r/programming

The article compares the performance of two rich text editors, Lexical and ProseMirror, under data load over time. The findings indicate that Lexical is faster and more responsive for short-term use, but its performance declines significantly during prolonged heavy use, likely due to poor memory management. In contrast, ProseMirror, which is better suited for long-term usage, offers slower initial responses but exhibits more stable and predictable performance over time. ProseMirror, created by Marijn Haverbeke,

Published: 2024-10-06 | Origin: Hacker News

The content describes "sq," a free and open-source data wrangling tool that functions like a Swiss army knife for data inspection, querying, joining, importing, and exporting. It is compared to "jq" for databases and documents, and its query language (SLQ) is pronounced like "sleek." Users can begin with `sq help` and access detailed documentation, including tutorials and guides. Key features include: - Using the `diff` command for comparing source metadata or row values.

Published: 2024-10-06 | Origin: Hacker News

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Published: 2024-10-06 | Origin: /r/programming

The author critiques the current state of software development in 2024, highlighting an over-reliance on complex architectures like microservices and various technologies that prepare for large-scale usage, which may not be necessary for most projects. Instead of building with expansive scale in mind, the author advocates for starting small and using vertical scaling, as modern hardware can handle substantial workloads on a single server. They suggest that many applications fail to gain traction and thus don't require excessive infrastructure from the start. Optimizing for flexibility

Published: 2024-10-06 | Origin: Hacker News

The post is aimed at SIMD CPU programmers interested in unique AVX instructions, particularly veterans of Amiga programming who struggled with calculating the “minterm” blitter value. Inspired by a talk on the AVX-512 Instruction Set Architecture by Tom Forsyth, the author highlights the vpternlogd instruction, which performs bitwise ternary logic operations using three input sources and can operate on 512-bit registers. The efficiency of vpternlogd lies in its ability to execute complex logic operations with

Published: 2024-10-06 | Origin: /r/programming

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Published: 2024-10-06 | Origin: /r/programming

The content discusses the simplicity of the HTTP protocol, emphasizing that it consists of a request line, headers, and a message body. An example in Go demonstrates how an HTTP server handles requests and responses, specifically highlighting the "Content-Length" header, which indicates the length of the response body. The Go code illustrates that headers are automatically managed when sending responses, and highlights potential issues when dealing with response size. It raises a question about how a server can know the size of a response before sending it,

Published: 2024-10-06 | Origin: /r/programming

The discussion explores the misconception that server-side JavaScript is merely a resurgence of PHP. Instead, it argues that the evolution from PHP to modern full-stack JavaScript frameworks represents significant progress in web development. The author reflects on the simpler times of using PHP and other server-side languages to create basic web applications, emphasizing that those earlier frameworks did not support the complexity of today's applications. They highlight the past reliance on JavaScript for enhancing interactivity and the challenges posed by early versions of the language. Overall,

Published: 2024-10-06 | Origin: Hacker News

The Book of Kells, celebrated as one of Ireland's greatest cultural treasures, distinguishes itself from other medieval illuminated manuscripts due to its exceptional artwork and numerous illustrations across its 680 pages. Crafted in the Hiberno-Saxon style, it is believed to have been created around 806 on the island of Iona and later moved to Kells in County Meath after a Viking raid. The manuscript primarily features the four gospels and canon tables, designed mostly for display rather than for reading aloud,

Published: 2024-10-06 | Origin: /r/programming

The content discusses the importance of reliability in software development, particularly for SaaS and B2C companies. It emphasizes that unreliable systems can lead to customer dissatisfaction and loss of business, as customers may turn to competitors. The author highlights the significance of measuring reliability through metrics such as error budgeting, Mean Time to Detect (MTTD), and Mean Time to Recovery (MTTR), which help manage risk and ensure system performance. Key concepts introduced include: - **Service Level Indicators (SLIs)**: Metrics

Published: 2024-10-06 | Origin: Hacker News

The author shares their insights on improving artistic skills, emphasizing the importance of a supportive teacher or group, practicing daily—even just for 15-30 minutes—and striving to improve oneself continually. They argue that perceived "talent" in the arts often results from extensive practice rather than innate ability, citing their own experiences and those of talented peers who dedicated significant time to their craft. The author encourages persistence and self-competition in the pursuit of artistic growth. They also provide links to their own artistic journey and

Published: 2024-10-06 | Origin: Hacker News

In a blog post dated April 30, 2024, author Nick Botticelli discusses his journey in virtualizing iOS on Apple silicon Macs. He highlights his project, vma2pwn, which focuses on creating a modifiable boot-chain for macOS guest virtual machines and serves as a foundation for his work on iOS virtualization. With the integration of macOS virtualization on Apple silicon, he explores the possibility of modifying iOS to run virtualized. He notes that while there are

Published: 2024-10-06 | Origin: Hacker News

The article from the "That's Maths" column in The Irish Times highlights the mathematical principles behind the efficient packing of sunflowers and other plants, specifically focusing on the Fibonacci sequence. It begins with an observation of a plaque at the Ibec head office in Dublin, which features a circular dot pattern resembling a sunflower's head. The logo consists of 34 clockwise and 21 counter-clockwise spirals, corresponding to two sequential Fibonacci numbers. The Fibonacci sequence, introduced by mathematician Leonardo of Pisa (F

Published: 2024-10-06 | Origin: Hacker News

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Published: 2024-10-06 | Origin: /r/programming

Denis Isaev shares experiences related to reliability issues caused by implementing retry mechanisms in a microservices architecture at Yandex Go, told through a fictional character named Ben. Ben, a backend developer on a taxi app's order platform, encountered user complaints linked to 500 errors due to timeouts in the pricing service. Believing these to be transient errors, he implemented three retries for failures, assuming it was safe due to the APIs being idempotent. During a code review, team lead Alex