Every blog post that took off on Hacker News, ranked by the votes of its best submission. 49,220 posts.
Usually when your laptop screen breaks you curse and just fork out the cash to get it fixed. Perhaps whilst you’re waiting for the replacement parts you plug in an external monitor. It’s annoying but it needn’t be a show stopper. But what if you’re two days bus ride from the nearest major city and you can’t trust the…
The Intel 8086 microprocessor is one of the most influential chips ever created; it led to the x86 architecture that dominates desktop an...
A few months back I gave a talk in which I shared a list of my personal engineering axioms – things that, over the years, I've come to think of as generally true and useful to have in mind when writing code, building things, and working with others.
Ruby's native I/O methods traditionally blocked the calling fiber, leaving event-loop libraries to provide replacement wrappers. This Ruby Concurrency Progress Report presents a lightweight per-thread Fiber Scheduler which lets those native operations cooperate with an event loop. It explains the implementation and…
Just over 2 years ago Microsoft open-sourced the entire .NET framework, this posts attempts to provide a ‘Hitchhikers Guide’ to the source-code found in the CoreCLR GitHub repository.
There are some caveats to this. First, at the moment only FreeBSD 9.0-CURRENT can run under EC2; I haven't merged bug fixes back to the stable branches. Second, at the moment FreeBSD only runs on t1.micro instances, for reasons I can't discuss (NDA) but hope will be resolved soon. Third, this code hasn't received very…
Personal website of Jan-Erik Rediger
Recently I was doing some work decoding the new Galileo High Accuracy Service data. In short, this new service will allow Galileo (“European GPS”) users to achieve decimeter-level accuracy, which is nice. This “HAS” data is transmitted highly redundantly by making good use of Reed-Solomon encoding. To work with this…
A blog post on building a panel with multiple electronic shelf labels (ESL).
I've just released devd , a small, self-contained, command-line-only HTTP server for developers. It started as a weekend stress-relief hack (that's a thing where I'm from), but has now become my preferred "daily driver" for most web-ish things. It's simple, direct and does more or less exactly what I need. This isn't…
Brighten Godfrey was one of my officemates when we were grad students at Berkeley. He’s now a highly-successful computer networking professor at the University of Illinois Urbana-Champaign, …
All the recent media attention on Bitcoin inspired me to learn how Bitcoin really works, right down to the bytes flowing through the netwo...
Creating a simple driver for a simple PCI-e device (in QEMU)
Blog Quest and StreetPass help you discover the independent web
Over the past few weeks, I've been experimenting with painting in watercolours using my AxiDraw plotter. Watercolour is a medium I enjoy painting in (by hand) as a personal hobby, kind of separate from my public art making, so it’s been interesting to combine it with code. I’ve thought about trying
Content-aware fill is a powerful tool designers and photographers use to fill in unwanted or missing parts of images. Image completion and inpainting are closely related technologies used to fill in missing or corrupted parts of images. There are many ways to do content-aware fill, image completion, and inpainting. In…
Statistical analysis and mining of huge multi-terabyte data sets is a common task nowadays, especially in the areas like web analytics and Internet advertising. Analysis of such large data sets oft…
Have you heard that it is complicated to start a business in Germany?
Some clarification on what's going on with Redux
Disclaimer: I know not all jobs can be done from home. This article is aimed at the ones that can be done remotely yet have ‘management…
The Python community should fork Python 2.
Look at the monthly numbers...
How tools that were supposed to free us up to find meaning work have exacerbated the rat race.
The AI surge has DRAM producers like Micron focus on HBM (High Bandwidth Memory) to serve AI hyperscalers over the DRAM (Dynamic Random Access Memory) used by ordinary consumers and small businesses. Consequently, for instance, servers which used to cost $2500 on Newegg now cost $5000. RAM alone is $2500 now.
Fixing common Java anti-patterns took an app from 1,198ms to 239ms. Eight patterns that compile fine and pass code review but silently drain CPU and balloon heap, with benchmarks and code fixes for each
