211
We found an undocumented bug in the Apollo 11 guidance computer code
How a specification surfaced a defect in the Apollo flight code.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 2,560 posts.
212
Over the Air: Exploiting Broadcom’s Wi-Fi Stack
Posted by Gal Beniamini, Project ZeroIt’s a well understood fact that platform security is ...
213
How Discord Stores Billions of Messages Using Cassandra
Discover the latest news and app updates, stories, company insights, and plenty more about Discord, all in one place.
214
215
216
Gentoo on Codeberg
News and information from Gentoo Linux
217
The weird world of Windows file paths
File system paths on Windows are stranger than you might think. On any Unix-derived system, a path is an admirably simple thing: if it starts with a /, it’s a path. Not so on Windows, which serves up a bewildering variety of schemes for composing a path.
218
How Discord stores trillions of messages (2023)
Engineer Bo Ingram shares insight into how Discord shoulders its traffic and provides a platform for our users to communicate.
219
Standardizing WASI: A system interface to run WebAssembly outside the web
WebAssembly is an assembly language for a conceptual machine, not a physical one. This is why it can be run across a variety of different machine architectures. WebAssembly needs a ...
220
Jepsen: NATS 2.12.1
NATS is a popular streaming system. Producers publish messages to streams , and consumers subscribe to those streams, fetching messages from them. Regular NATS streams are allowed to drop messages. However, NATS has a subsystem called JetStream , which uses the Raft consensus algorithm to replicate data among nodes…
221
222
Windows Server 2019 Includes OpenSSH
The OpenSSH client and server are now available as a supported Feature-on-Demand in Windows Server 2019 and Windows 10 1809! The Win32 port of OpenSSH was first included in the Windows 10 Fall Creators Update and Windows Server 1709 as a pre-release feature. In the Windows 10 1803 release, OpenSSH was released as a…
223
224
The 4th Year of SerenityOS
Well hello friends! Today we celebrate the 4th birthday of SerenityOS, counting from the first commit to the repository, on October 10th, 2018.
225
Down the Rabbit-Hole
Posted by Tavis Ormandy, Security Research Over-Engineer.“Sometimes, hacking is just someon...
226
Epiphany-V: A 1024-core 64-bit RISC processor
I am happy to report that we have successfully taped out a 1024-core Epiphany-V RISC processor chip at 16nm. The chip has 4.5 Billion transistors, which is 36% more transistors than Apple’s latest 4 core A10 processor at roughly the same die size. Compared to leading HPC processors, the chip demonstrates an 80x…
227
228
Postgres 15 improves UNIQUE and NULL
Postgres 15 beta 2 was released recently! I enjoy Beta season... reviewing and testing new features is a fun diversion from daily tasks. This post takes a look at an improvement to UNIQUE constraints on columns with NULL values . While the nuances of unique constraints are not as flashy as making sorts faster (that's…
229
Prime Video Uses WebAssembly
The switch to WebAssembly increases stability, speed.
230
How Basecamp Next got to be so damn fast without using much client-side UI
When we started working on Basecamp Next last year, we had much internal debate about whether we should evolve the existing code base or rewrite it. I’ll dive more into that debate further in a later post, but one of the key arguments for a rewrite was that we wanted a dramatic leap forward i…
231
3K, 60fps, 130ms: achieving it with Rust
How we chose the Rust programming language to advance the state-of-the-art in real-time communication
232
Firefox 94 to start using EGL on Linux
Hi there! This is a guest post from Robert Mader, who contributed enormous improvements to Firefox’s graphics stack on Linux. TL;DR In the upcoming Firefox 94 release we will enable the EGL b…
233
PostgreSQL Full-Text Search: Fast When Done Right (Debunking the Slow Myth)
Boost PostgreSQL full-text search speed by 50x with simple optimizations. Use VectorChord-BM25 to accelerate and better BM25 ranking in postgres.
234
235
The Fully Remote Attack Surface of the iPhone
Posted by Natalie Silvanovich, Project ZeroWhile there have been several rumours and reports of f...
236
How Mailinator compresses its email stream by 90%
Given the title of this article, the first thing that should pop into your mind is probably - "well, use a compression algorithm - right?". ...
237
You can't copy code with memcpy
There's more to code than just instructions.
238
239
Bash on Ubuntu on Windows
At //Build 2016, Microsoft announced the ability to run native Bash and GNU/Linux command-line tools directly on the new Windows Subsystem for Linux
240
Treble: A modular base for Android
News and insights on the Android platform, developer tools, and events.