Every blog post that took off on Hacker News, ranked by the votes of its best submission. 6,944 posts.
Wendelstein 7-X—the leading fusion device of the stellarator type—achieved several new performance milestones during its latest run of experiments. Among them is a world record for triple product, the value that measures how close a fusion device is to generating net energy across the plasma.
Chronos is a distributed task scheduler (cf. cron) for the Mesos cluster management system. In this edition of Jepsen , we’ll see how simple network interruptions can permanently disrupt a Chronos+Mesos cluster
XDP only works for ingress. We found a loophole that lets it work for egress. Here's how we did the impossible.
Linux's epoll API solved the C10K problem, enabling fast and afforable Internet services.
While this post is addressed to F# .NET developers, it introduces much wider concepts starting from hardware architecture to overall .NET runtime and JIT compiler optimizations. It shouldn't be a surprise - optimizing the application performance requires us to understand the relationships between our high level code…
How Amazon uses load shedding to stay available under overload, rejecting excess work early so the system keeps serving requests it can handle.
18 bit registers, 90kb of memory, ones’ complement, powered by RISC-V.
A while ago I did a blog post about how long DNS resolvers hold results in cache for, using RIPE Atlas probes testing against their default resolvers (in a lot of cases, the DNS cache on their modem/router).
While working on our Spectrum server , we noticed something weird: the TCP sockets which we thought should have been closed were lingering around. We realized we don't really understand when TCP sockets are supposed to time out!
Designing and soldering a small ARM Linux board with 217 ball BGA package and 0402 passive components
On a lobste.rs thread about the rationale for the Fennel language, I posted this summary of why Oil exists:
In this article, I present the Linux file system NILFS and its automatic continuous snapshoting system.
The random number generator has undergone a few important changes for Linux 5.17 and 5.18, in an attempt to modernize both the code and the cryptography used. The smaller part of these will be released with 5.17 on Sunday, while the larger part will be merged into 5.18 on Monday, which should receive its first release…
I have taught operating systems at my university, so I will link my notes from that course here regarding the virt I/O protocol. This protocol has changed over the years, but the one that QEMU implements is the legacy MMIO interface.
Tracking financial transactions at scale
Console is the epitome of Apple’s problem with tools and support for its users, and is exactly what it needs to fix.
First release of youki, an OCI container runtime written in Rust
Hi all, PyPy-STM is now reaching a point where we can say it's good enough to be a GIL-less Python. (We don't guarantee there are no more...
With the release of the WSL 3.x stack, Microsoft bumped the default virtualization runtime and advanced the shipped guest kernel from the 6.6 LTS branch up to 6.18. WSL upgrades often claim generalized performance gains, but marketing bullet points rarely translate directly to developer workloads. To see what actually…
We've open sourced several components for our secure operating system, called KataOS, on GitHub, as well as partnered with Antmicro
One thing is certain in life: if you’re getting something for a steal, someone is getting screwed, and it’s probably you elsewhere. This isn’t an anti-capitalist rant, it’s just the truth. Companies don’t exist if they don’t make money. Unless there’s some innovation, rest assured that you’re overpaying somewhere else.
