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The M2 is more advanced than it seemed
Apple’s M2 chip uses a newer version of the CPU core instruction set. This increases its capability, thus how well it will cope with future apps and macOS, compared with the M1.
Topics /
Systems & Performance
The most popular blog posts about systems & performance on Hacker News. 399 posts.
212
Playground Wisdom: Threads Beat Async/Await
Musings about async await again and why I think virtual threads
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How I learned to stop worrying and love userspace networking
Userspace wireguard is fun!
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How concurrency works: A visual guide
Welcome to Waqas' blog
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Optimizing Guile Scheme
Guile is a rather niche language that I love dearly. Guile is a Scheme dialect that features an advanced optimizing bytecode compiler, a JIT compiler, and a modest set of developer tools for inspecting and debugging. Through my time spent developing Chickadee , a game programming library, I have gotten quite familiar…
216
Systemd through the eyes of a musl distribution maintainer
Welcome back to FOSS Fridays! This week, I’m covering a real pickle. I’m acutely aware of the flames this blog post will inspire, but I feel it is important to write nevertheless. I volunteer my ti…
217
Power of small optimizations
In this post, I will talk about the importance of small optimizations that can provide a lot of performance improvements.
218
Sandboxing all the things with Flatpak and BubbleBox
A few years ago, I have blogged about my approach to sandboxing less-trusted applications that I have to or want to run on my main machine. The approach has changed since then, so it is tim...
219
Eighteen Years of ABI Stability
It has been eighteen years of libcurl ABI stability.
220
Understanding x86_64 Paging
I’ve spent quite a lot of time messing with x86_64 page tables, understanding address translation is not easy and when I started learning about it I felt like a lot of the material out there on how it works was hard for me to wrap my head around. So in this blog post I am going to attempt to provide a kind of “what I…
221
Execution units are often pipelined
In the context of out-of-order microarchitectures, I was under the impression that execution units remain occupied until the µop they’re processing is complete. This is often not the case.
222
Beyond Ctrl-C: The dark corners of Unix signal handling
An introduction to signals: a written version of my talk at RustConf 2023.
223
Upgrading a Toshiba NAS HDD Firmware on Linux
I reversed the firmware updater of my Toshiba HDD to be able to update it on Linux. The following commands should work, USE AT YOUR OWN RISK :
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VPR: Nordic's First RISC-V Processor
VPR (pronounced “Viper”) is Nordic Semiconductor’s first RISC-V processor, landing in the new nRF54H and nRF54L lines of SoCs after their initial announcements in April and October of 2023 respectively. Readers of this blog are familiar with my long-running obsession interest in RISC-V (see my RISC-V Tips and RISC-V…
225
Some OpenBSD features that aren't widely known
In this article, you will learn about some OpenBSD features you may not know about
226
Clojure: Managing throughput with virtual threads
A blog mostly about Clojure programming
227
Running NetBSD on IBM ThinkPad 380Z
Launched in 1998, the 380Z was one very fine ThinkPad. It was the last ThinkPad to come in the classic bulky and rectangular form factor. It was also one of the first to feature a huge 13.3" TFT display, powerful 233MHz Pentium II, and whopping 160 megs of RAM.
228
Making my first embedded Linux system
End-to-end documentation of a journey from no PCB experience to fabricating my own Linux-ready system that can boot the latest mainline kernel. This article is the recommended reading for someone building their first embedded Linux board. F1C100s SoC is used for this sample board.
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Improving cursor rendering on Wayland
A programming blog written by Vaxry.
230
Jetstream: Shrinking the AT Protocol Firehose by >99%
Jetstream is a streaming service that consumes an AT Proto Sync Firehose and converts it into lightweight, filterable, friendly JSON, allowing us to live tail all posts on Bluesky for as little as ~850 MB/day
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Runtime code generation and execution in Go
Disclaimer: I won’t expand on why/when you want to do this kind of hack, and you should not do this unless you know exactly what you are doing. Everything I talk about here is completely unsafe and might not be accurate for the future Go versions. This is not a recommendation, but more of a fun story.
234
What's worked in Computer Science: 1999 vs. 2015 (2015)
In 1999, Butler Lampson gave a talk about the past and future of “computer systems research” . Here are his opinions from 1999 on "what worked".
235
The Soul of an Old Machine: Revisiting the Timeless von Neumann Architecture
Revisiting the timeless von Neumann Architecture
236
Making Sense of Acquire-Release Semantics
Multiprocessor Synchronization was one of my favorite classes during my undergrad — it had a clear progression from theory to practice, starting at the theory of consensus numbers and moving onto atomic operations and then synchronization primitives and lock-free data structures, all from first principles. With…
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Improving Xwayland window resizing
One of the quickest ways to determine whether particular application runs using Xwayland is to resize one of its windows and see how it behaves, for example
239
Asynchronous IO: the next billion-dollar mistake?
Asynchronous IO (also known as "non-blocking IO") is a technique applications use to allow performing of many IO operations without blocking the calling OS thread, and without needing to spawn many threads (i.e. one thread per operation). In the late 1990s/early 2000s, an increasing amount of people using the internet…
240
Bcachefs, an Introduction/Exploration
Introduction & background information NOTE: This content is from an internal talk I gave, thus the reason it may read like a presentation So what is …