1. Building a high performance JSON parser
Total comment counts : 25
Summary
This article discusses the design and optimization of a high-performance JSON parser package in Go. The author focuses on reducing allocations and improving efficiency in the parsing process. They explain the challenges of parsing JSON, including the need to read and process the entire input, and the overhead of function calls and memory management. The author introduces improvements to the existing JSON decoding API, such as returning token bytes directly from the input and manually inlining functions. They also discuss the importance of minimizing allocations to improve overall performance. The article concludes by highlighting the significant performance gains achieved through these optimizations and the benefits of using the package.
Top 1 Comment Summary
The article focuses on the author’s lessons learned from writing fast JSON parsers. The key points include: avoiding heap allocations in tokenizing and parsing by using stack-allocated structures or packed field tokens, using a getString interface to efficiently chop up a buffer, generating a switch case of key length for deserializing objects whose fields are known at compile time, and the significant performance difference in choosing a JSON library, with the author recommending Jackson Java for known classes but mentioning the potential for even better performance by writing a custom parser for arbitrary JSON.
Top 2 Comment Summary
The author of the article expresses appreciation for having a reference for creating a reasonable and fast JSON parser. They mention that they have written many JSON parsers before and find it helpful to break down the process into individual steps. However, the author suggests that having an explicit tokenizer for JSON is not necessary and that parsing and tokenization can be integrated entirely, making the process simpler. They explain that this integration is more challenging with something like ECMAScript since it often requires look-ahead. They provide an example using arrow functions to illustrate the need for look-ahead in ECMAScript parsing.
2. Intel Itanium IA-64 Support Removed with the Linux 6.7 Kernel
Total comment counts : 21
Summary
Phoronix is a website that offers a premium ad-free service called Phoronix Premium. By subscribing to this service for less than $4 USD per month, users can support the site and its activities such as Linux hardware reviews, performance benchmarking, and maintaining community forums. Michael Larabel is the principal author and founder of Phoronix.com, with expertise in Linux hardware support and performance. Phoronix Premium provides ad-free access, multi-page articles on a single page, and other features to support the site’s operations. Users can also contribute through PayPal or Stripe.
Top 1 Comment Summary
The article discusses Itanium sales forecasts and implies that they are unreliable. It includes a link to an image showing the sales forecasts for Itanium.
Top 2 Comment Summary
The author of the article expresses their lack of surprise regarding the discontinuation of the Itanium system at their workplace. They mention that the Itanium CPUs were slower than their competitors and that the SGI Altix 3000-series computer, which featured the Itanium system, was niche and specialized in MPI parallelism. The author notes that the system was good for certain types of problems but ultimately remained an outlier. However, they also express a slight disappointment at losing another option in the computing ecosystem.
3. Bubble sort in pure CSS
Total comment counts : 11
Summary
The article discusses a unique implementation of the bubble sort algorithm using pure CSS. The author explains how they created visualizations and a functioning sorting algorithm using CSS animations. They provide instructions on how to use the code and mention some limitations, such as potential issues with mobile devices. The author also provides explanations of the code used in the implementation. Although not a tutorial, the article offers interesting CSS techniques that may be useful in the future. The author concludes by expressing their enjoyment in creating this CSS implementation of bubble sort and looks forward to impressing someone with it.
Top 1 Comment Summary
The article suggests using a different animation for visualizing elements swapping. Instead of vertically shrinking and growing the bars, the bars should stay the same height but move horizontally. The author prefers to see values move rather than slots in the array changing. The current animation is compared to pumping water from one tank to another.
Top 2 Comment Summary
This article explains that conjunction, also known as AND, is similar to logical multiplication, while disjunction, also known as OR, is similar to logical addition. It suggests that representing this concept can be helpful when working on bitset or SIMD algorithms.
4. Why Cities: Skylines 2 performs poorly
Total comment counts : 35
Summary
The article discusses the release of the highly anticipated PC game Cities: Skylines 2 and its mixed reception. While the gameplay and simulation aspects of the game have been praised, there are significant issues with balance, design choices, bugs, and poor performance. The game’s graphics, although an improvement from the original, are considered unpleasant and demanding on hardware. The article goes into technical details about the game’s architecture, rendering process, and issues such as fully rendered teeth on character models. Overall, the article criticizes the game’s performance and discusses some of the technical reasons behind it.
Top 1 Comment Summary
The article discusses the problem of discussions on threads becoming too generic and less interesting. It points out that while discussing related topics can be valuable, it is important to avoid going off on tangents that are not specifically related to the original subject. This is emphasized in the site guidelines provided in the article.
Top 2 Comment Summary
This article discusses the decision of game developer Colossal Order to implement their own culling system instead of using Unity’s built-in solution. This is because Unity’s integration between DOTS (Data-Oriented Technology Stack) and HDRP (High Definition Render Pipeline) is still a work in progress and is considered unsuitable for most games. The article also criticizes Unity’s tooling, stating that DOTS implementation, like other tools acquired by Unity, is not receiving adequate attention and improvements from the company. The author expresses support for Bevy’s ECS (Entity Component System) implementation and hopes for its success, along with another system called Godex.
5. Planes, Spheres and Pseudospheres
Total comment counts : 7
Summary
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Top 1 Comment Summary
I apologize, but I am unable to access or summarize the article you provided through the given link. It appears that the original page has been taken down. Is there anything else I can assist you with?
Top 2 Comment Summary
The article describes Greg Egan as an exceptional hard sci-fi writer, particularly praising his works such as “Diaspora,” “Permutation City,” and “Schild’s Ladder” for their incorporation of complex physical concepts. The article suggests starting with Egan’s short story collection, “Axiomatic,” and states that Egan’s blog articles can be difficult to understand, with the reader usually comprehending only around 30-50% before giving up.
6. Show HN: Gogosseract, a Go Lib for CGo-Free Tesseract OCR via Wazero
Total comment counts : 10
Summary
This article discusses a reimplementation of the GitHub project “gosseract” without CGo, using Tesseract compiled to WASM with Emscripten via Wazero. Tesseract is an Optical Character Recognition (OCR) library written in C++. The author’s fork of the “tesseract-wasm” project is used to generate the WASM. It notes that Tesseract only supports the LSTM neural network OCR engine and requires training data for accurate text recognition. The article suggests strategies for handling this, such as downloading the training data at runtime or embedding it within the Go binary at compile time. Additionally, it mentions techniques for improving Tesseract’s performance, such as preprocessing input images. The article also mentions the use of Tesseract for parsing text from images and utilizing a pool of Tesseract workers for concurrent image parsing.
Top 1 Comment Summary
The author discusses the use of WebAssembly (WASM) in embedded runtimes and its potential benefits. They mention that while this method is a good option, there can still be high overhead and fragmentation between compilers and runtimes. The author highlights that using WASM in Go has advantages due to the absence of CGo, and mentions the availability of a performant JITed runtime called wazero. The article they refer to provides more in-depth information on this topic.
Top 2 Comment Summary
The author believes that the true benefit of WebAssembly (Wasm) is the ability to create platform-independent libraries with a standard interface that does not rely on C programming language.
7. Representations and srategies for games with imperfect information (1996) [pdf]
Total comment counts : 3
Summary
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Top 1 Comment Summary
The author is interested in reading a paper about board games, particularly Puerto Rico, which is their favorite game.
Top 2 Comment Summary
The article suggests the idea of using artificial intelligence to analyze social situations in real time. It mentions the concept of Nash equilibrium in the bar scene of the movie A Beautiful Mind and proposes that an AI capable of detecting and understanding games being played in social interactions could be advantageous in areas such as love and politics. The article suggests that such an AI would be revolutionary in itself.
8. Quadratic Reciprocity: The connection that changed number theory
Total comment counts : 4
Summary
This article discusses the concept of quadratic reciprocity in number theory and its applications in various areas of mathematics. Quadratic reciprocity is the idea that if two prime numbers have certain remainders when divided by 4, then they reciprocate in terms of being perfect squares modulo each other. The article explores the historical development of quadratic reciprocity, its extension to complex numbers, and its relevance in fields such as cryptography and number theory. The article emphasizes that despite its numerous proofs and applications, there is still an element of mystery surrounding quadratic reciprocity.
Top 1 Comment Summary
The article discusses the concept of quadratic reciprocity in number theory and how it can be seen as a theorem that lacks an intuitive explanation for its truth. The author finds it encouraging that even professional mathematicians struggle with understanding it. The article also mentions an example problem involving positive integers, where the condition that (x^2 + xy + y^2) written in base b ends with two zeros is explored. The solution to this problem involves quadratic reciprocity, particularly the special case that (-3) is a square mod p if and only if p is a square mod 3.
Top 2 Comment Summary
The article highlights the continued impact of Gauss, a prominent mathematician who passed away in 1855, on modern mathematics. Even in the field of number theory, researchers are still uncovering concepts that Gauss had already discovered, indicating the enduring significance of his work.
9. How to Do a TypeScript Conversion
Total comment counts : 12
Summary
The article discusses two approaches to converting JavaScript applications to TypeScript: the relaxed approach and the more rigorous approach. The relaxed approach involves gradually converting files as you touch them and enabling strictness flags over time. The rigorous approach involves setting compilerOptions.strict to true and converting the codebase in a “leaves-first” order with all dependencies being converted first.
The article highlights the problems that can arise with the relaxed approach, such as the need to repeatedly propagate changes to various files and the lack of safety for already converted modules. These problems become more pronounced as the codebase size increases. On the other hand, the rigorous approach offers the advantage of a solid foundation when converting modules, leading to better type safety and easier conversion of subsequent modules. However, this approach requires more discipline and buy-in from stakeholders.
Overall, the article recommends the more rigorous approach as it provides a better experience and ensures type safety throughout the conversion process. It acknowledges that this approach may require more effort and time, but ultimately leads to a smoother transition to TypeScript.
Top 1 Comment Summary
The article discusses how Airbnb used automation to convert millions of lines of code to TypeScript. They developed a tool called “TS Migrate” to facilitate the migration process and have made it open source on GitHub.
Top 2 Comment Summary
The author shares their experience of converting JavaScript (.js) files to TypeScript (.ts) at work. They found that starting with maximum strictness and converting the files in dependency order was the best approach. By doing so, they ensured a thorough conversion and minimal refactoring needs.
10. Email obfuscation rendered almost ineffective against ChatGPT
Total comment counts : 56
Summary
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Top 1 Comment Summary
The article states that large-scale email scrapers lack the necessary budget to run the content they scrape through a Language Model (LLM). Therefore, there is no significant change in real-world scenarios. Running ChatGPT on a page to extract potentially obfuscated emails would be much more expensive than the potential revenue it could generate. The examples provided could easily be achieved using a simple regex, so introducing an LLM would only slow down and increase costs. The article also mentions that the obfuscation method of using “[at]” and “[dot]” in emails is not secure, and most text obfuscations are already known.
Top 2 Comment Summary
The author of the article used chatGPT to decode proprietary binary files of industrial machinery. They were impressed by how chatGPT was able to decipher the files and identify patterns. The process involved looking for ascii characters, byte sequences acting as delimiters, identifying lengths and coordinates, and determining endianness. The author found this capability to be fascinating.