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RubySpec is Reborn
A blog about ruby/spec.
New
The latest blog posts to take off on Hacker News. 1,031 posts.
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Releasing jsfunfuzz and DOMFuzz
Today I'm releasing two fuzzers: jsfunfuzz , which tests JavaScript engines, and DOMFuzz , which tests layout and DOM APIs.
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Binary in JavaScript
Over the last week or so, I've spent my spare time working on a new roguelike game, with a focus on extensive and interesting planet generation. A key characteristic of the genre is that the game world is procedurally generated and this one is no exception.
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Why Docker Is Not Yet Succeeding Widely in Production
Docker’s momentum has been increasing by the week, and from that it’s clearly touching on real problems. However, for many production users today, the pros do not outweigh the cons. Docker has done fantastically well at making containers appeal to developers for development, testing and CI environments—however, it has…
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Optimized Go gzip/zip packages, 30-50% faster
I have worked on optimizing the standard library deflate function, and I am happy to announce revised gzip/zip packages, that on x64 is about 30-50% faster with slightly improved compression. Project: https://github.com/klauspost/compress All packages are drop-in replacements for the standard libraries, so you can use…
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Why you should wait on upgrading to .Net 4.6
Update (August 11th): A patch for this bug has been released by Microsoft. Here’s their update to the advisory: We released an updated version of RyuJIT tod...
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The Hitchhiker's Guide to Modern JavaScript Tooling
A lot of developers coming to JavaScript world attracted by React.js are confused with the tooling used to produce modern JavaScript code. Webpack, Babel, ESLint, Mocha, Karma, Grunt... what should I use and which tool is doing what? JavaScript newcomers are often people coming from communities like Ruby and Java…
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Rwasa – A high-performance web server in x86_64 assembly
rwasa is our full-featured, high performance, scalable web server designed to compete with the likes of nginx . It has been built from the ground-up with no external library dependencies entirely in x86_64 assembly language, and is the result of many years' experience with high volume web environments. In addition to…
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The OpenSSH Bug That Wasn't
Much has been written about a purported OpenSSH vulnerability. On closer inspection, the reports actually got most of their facts wrong. Rea...
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How to implement a spreadsheet
My friend Lindsey Kuper recently remarked on Twitter that spreadsheets were commonly understood to be the most widely used dataflow program...
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The Weakness of the .NET OSS Ecosystem
The Profound Weakness of the .NET OSS Ecosystem
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Nibble Sort
A while back, John Regehr posted the Nibble Sort Programming Contest on his blog. The objective was to write a program that sorts the 4-bit components (nibbles) of 64-bit words as fast as possible. For example, 0x42badc0ffeed00d5 should result in 0xffeedddcba542000 after sorting.
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Monads in JavaScript
Monad is a design pattern used to describe computations as a series of steps. They manage side effects in pure functional languages but can also be used in other languages to control complexity.
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A mixed-format, mixed-architecture, mixed-sided diskette (2008)
As an IBM PC historian, one aspect of my hobby is archiving gaming software. (You can take that statement to mean anything you want — whatever you think of, you’re probably right.) At…
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Introducing Incremental
I’m pleased to announce the release of Incremental (well commented mli here), a powerful library for building self-adjusting computations, i.e., computations...
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Must Be This Tall to Write Multi-Threaded Code
David Baron put this up in Mozilla’s San Francisco office a while back:
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Pyxley: Python Powered Dashboards
Web-based dashboards are the most straightforward way to share insights with clients and business partners. For R users, Shiny provides a framework that allows data scientists to create interactive web applications without having to write Javascript, HTML, or CSS. Despite Shiny’s utility and success as a dashboard…
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GCC 5.2 released
Command-line optimization and target options are now streamed on a per-function basis and honored by the link-time optimizer. This change makes link-time optimization a more transparent replacement of per-file optimizations. It is now possible to build projects that require different optimization settings for…