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The most popular blog posts about systems & performance on Hacker News. 6,943 posts.
I became involved in the nanomsg community back in 2014, when I wrote mangos as a pure Go implementation of the wire protocols behind nanomsg . I did that work because I was dissatisfied with the ZeroMQ licensing model and the C++ baggage that came with it. I also needed something that would work with Go on illumos …
Use Equinix Fabric to establish direct, low-latency connections to a variety of services providers.
It's time for another technical blog post about async Rust on embedded. This time we're going to pitch Embassy/Rust against FreeRTOS/C on an STM32F446 microcontroller.
MongoDB's blog includes technical tutorials, MongoDB best practices, customer stories, and industry news related to the leading non-relational database.
Native development on a Chromebook, with Chrome OS in Developer Mode
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
I started working at IBM last year on mainframe compilers with the goal of making mainframes feel a little more modern. Hence, a lot of my time is spent in z/OS . The interface I use to z/OS is Unix System Services (USS, a.k.a. the command line), but if I were up for bucking the whole moderm thing, I could break out…
Bringing back mid-2000s Video conferencing in Apple iChat
Posted by James Forshaw, path’ological reverse engineer.How the Win32 APIs process file pat...
Maximize the performance of your hardware with memory access amortization
LMAX is a retail financial trading system that can handle that can 6 million orders per second on a single JVM thread. The business logic runs in-memory surrounded by disruptors using event sourcing.
Introduction
The historic go-to solution for network booting is PXE. PXE is based on DHCP and TFTP. It is tricky to correctly configure, even trickier to make it highly available and good luck with the security with this clear-text unsigned protocol.
Our experience running AWS EBS at scale for critical workloads
It's taken me much longer than I hoped, but I finally have a second version of my patches to build static executables tested and ready to go! This set of patches vastly improves upon the first by reducing the amount of compilation needed at the cost of sacrificing a little purity. Additionally I have created a system…
FreeBSD 15 comes with a new bridging implementation which has native support for VLANs. They have also soft-deprecated the ability to have any layer 3 addresses on member interfaces which makes it behave like a real hardware switch. The net.link.bridge.member_ifaddrs sysctl controls this behavior and it will …
During a recent RAID 5 recovery attempt, John made an interesting discovery inside the two failed disks. The plastic ramp that the heads park onto when idle had snapped in the same position on both drives. We don’t know if the heads got damaged first, and then broke the ramps during parking, or if the […]
How Netflix’s Container Platform Connects Linux Kernel Panics to Pods
The Xen Project is excited to share that the Xen Hypervisor now runs on Raspberry Pi. This is an exciting step for both hobbyists and industries. Read more to learn about how Xen now runs on RPi and how to get started. Written by Stefano Stabellini and Roman Shaposhnik, originally
The PipeWire project is slowly getting popular as it matures. Its documentation is still relatively sparse but is gradually growing. However, it's always a good idea to have people from outside the project try to grasp and explain it to others in their own words, reiterating ideas, seeing them from their own…
Binary search is a wonderful algorithm: theoretically optimal, fast in practice, and discoverable by school children playing guessing games. Usually we think of binary search as being applied to a sorted array, and we teach it this way.
in which two women are driven into madness by poorly documented cab signaling gear
I have been doing a lot of competitive programming problems on Kattis lately. It is my favourite online judge, and I have been enjoying my climb up the Irish scoreboard in an attempt to regain my former glory of first place. In particular, today I was tackling the problem Pivot.
Dash knows your context, your team, and your work, so your team can stay organized, easily find and share knowledge, and keep projects secure, all from one place.
An new old approach to emulation.
What every SRE should know about GNU/Linux shell related internals: file descriptors, pipes, terminals, user sessions, process groups and daemons # Last updated: Oct 2025 Contents File descriptor and open file description Pipes Process groups, jobs and sessions Terminals and pseudoterminals Despite the era of…
Every 6 months, the RISC-V consortium organizes a two day workshop where various companies and research entities present work that is one way or the other related to RISC-V.
