Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,948 posts.
What if, instead of running a process-data program on this machine, we want to run it on another machine? No problem. We make a TCP connection to a process-data server on the remote machine. On the local machine, we have generate-data writing to the TCP connection, and consume-data reading from the TCP connection…
Is 1970s distributed systems theory finally meeting 2020s kernel development?
We’ve discussed SIMD and vectorization extensively on this blog, and it was only a matter of time before SIMD (or vector) functions came up. In this post, we explore what SIMD functions are, when they are useful, and how to declare and use them effectively. A SIMD function is a function that processes more than… Read
This is the story of a clever trick that's been around for at least 35 years, in which array values can be left uninitialized and then read during normal operations, yet the code behaves correctly no matter what garbage is sitting in the array. Like the best programming tricks, this one is the right tool for the job…
On January 8, 2020 at 14:51 UTC, one of our storage units used for our hosting services hosted at LU-BI1 went down.
With packet.net making bare metal servers available to cloud users, Percona CTO Vadim Tkachenko enjoys the opportunity to carry out some performance benchmarks with EPYC CPU, and experiences some surprising results running Percona Server for MySQL under systemd.
For the past week I have been configuring hyprland and using it as my daily driver. Coming from major Desktop Environments like KDE or Gnome, this was definitely quite challanging, specially when implementing features that we take it for granted on these DEs, like screen sharing or screenshot annotating.
The title may lead you to think that this post is another ranting post about the downside of a “Single Page Application”. It is more about…
Posted by Brandon Azad, Project ZeroI recently found myself wishing for a single online reference...
DISCLAIMER : The following are my own personal opinions and are not shared, sanctioned or endorsed by anybody in particular, especially my employer. Any criticisms expressed herein are of a general nature and are neither inspired by nor directed at any person, entity, or product in particular. Links to other online…
Intel Newsroom delivers the latest news, announcements, and updates. Stay informed on Intel innovations.
Some time ago, I’ve moved this jekyll-based blog from GitHub Pages to a self-hosted NixOS server. A few weeks ago, I’ve also moved some parts of my local OS X environment from homebrew over to nix.
Introduction Readyset is designed to serve queries from cached views with sub-millisecond latency. This post focuses on the cold path—cases where a cache miss forces execution against the base tables. In these scenari...
In what may be judged in years to come as a moment of madness, I have volunteered to be the primary maintainer of the Perl CGI module (CGI.pm). For the non-technical readers of this post: CGI.pm is a few thousand lines of code that in the mid to late nineties, and even some years later, was helping many websites…
A WebAssembly module's linear memory can be shared directly with the Apple Silicon GPU: no copies, no serialization, no intermediate buffers. Here's how the zero-copy chain works, what we measured, and what it enables for stateful AI inference.
Ping is one of the fundamental pillars of networking. It’s simple, universally supported, and is normally one of the few things that is shipped with all network stacks.
Ever since MacOS 10.0 was released, text fields have supported Emacs bindings for the single-character Control commands, showing that there were people inside Apple (and, presumably, NeXT) who were right-thinking and sensible. But some time late in the 10.6 release cycle, and continuing into 10.7.1, the binding for…
What if retries could know when they’re helping, and when they’re making things worse? Uber Engineering built error ownership to prevent and contain retry storms.
Peripheral component interconnect express (PCIe) hardware continues to push the boundaries of computing thanks to advances in transfer speeds, the number of available lanes for simultaneous data de…
I built a simple web crawler using good old platform threads. It was just a multithreaded crawler, nothing fancy. But then, curiosity…
A while back I had to deal with a bit-packed format that contained a list of integer values encoded in one of a pre-defined sets of bit widths, where both the allowed bit widths and the signed-ness…
Detailed explanation on how RISC-V boot process works and what role SBI has in the RISC-V software stack. Concrete example with OpenSBI.
Databases shed important RDMS features as they get big. Examining why this tends to be the case, and some ideas for preventing it.
