Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 696 posts.
I’ve been thinking about the lessons distributed systems engineers learn on the job. A great deal of our instruction is through scars made by mistakes made in production traffic. These scars are useful reminders, sure, but it’d be better to have more engineers with the full count of their fingers.
Browsers historically have had a single HTTP Cache. This meant that if www.a.example and www.b.example both used cdn.example/jquery-1.2.1.js then JQuery would only be downloaded once. Since it's the same resource regardless of which site initiates the download, a single shared cache is more efficient. [1]…
so here's a short tutorial on ansi escape codes and terminal control, because you philistines won't stop using ncurses and oh my god WHY ARE WE STILL USING NCURSES IT IS THE TWENTY FIRST FUCKING CENTURY
I talked at the first Zig meetup in Milan about Uber's early experience with Zig: a little about how Uber uses Zig and more about my experience of bringing Zig to Uber, from both technical and social aspects.
JDK 17 has been out for a few months and it’s not just packed with new language features. The performance boost compared to older JDK versions is also really significant. It becomes especially clear when compared to the previous LTS releases, JDK 8 and JDK 11. Much of the improved performance comes from new features…
A catalog of patterns to better understand, communicate, and teach the design of distributed systems
Jeff Atwood, perhaps the most widely read programming blogger, has a post that makes a case against using ECC memory . My read is that his major points are:
In the world of High-Frequency Trading, automated applications process hundreds of millions of market signals every day and send back…
Over the past year I’ve refined my approach to arena allocation . With practice, it’s effective, simple, and fast; typically as easy to use as garbage collection but without the costs. Depending on need, an allocator can weigh just 7–25 lines of code — perfect when lacking a runtime . With the core details of my own…
In case you missed it, Marius recently wrote a post on the Pyston blog about our baseline JIT tier. Our baseline JIT sits between our interpreter tier and our LLVM JIT tier, providing better speed…
Now, we don't want to truly change the observable behaviour of our software — but fortunately the C standard has a more liberal concept of "observable" than most people. In particular, the C standard states that the observable behaviour includes accesses to volatile objects . What is a volatile object, you ask? It is…
It is well known that Win9x variants prior to Windows 98 have a tendency to crash on fast CPUs. The definition of “fast” is of course fuzzy but the problems were known to occur on AMD K6-2 processors running at 350 MHz or faster as early as 1998. This led to some acrimony when Microsoft attempted to charge $35 for the…
bpftrace (DTrace 2.0) for Linux 2018: the bpftrace front-end
Remember when I blogged about linear read scalability out to 32 cores ? Well, the awesome Nate Boley provided me with access to his brand n...
This is a catalog of things UNIX-like/POSIX-compliant operating systems can do atomically, making them useful as building blocks for thread-safe and multi-process-safe programs without mutexes or read/write locks. The list is by no means exhaustive and I expect it to be updated frequently for the foreseeable future.
Have you ever tried to compile a helloworld Rust program in --release mode? If yes, have you seen its binary size? Suffice to say, it’s not exactly small. Or at least it wasn’t small until recently. This post details how I found about the issue and my attempt to fix it in Cargo.
In the classic 1986 essay, No Silver Bullet , Fred Brooks argued that there is, in some sense, not that much that can be done to improve programmer productivity. His line of reasoning is that programming tasks contain a core of essential/conceptual 1 complexity that's fundamentally not amenable to attack by any…
macOS Internals Deep Dive Building a Development Kernel Collection Configuring our Mac to boot the Development Kernel Collection Putting our machine to work! When did Apple grace us with this feature? Undoing our work for OS updates Closing Thoughts
RabbitMQ is a distributed message queue, and is probably the most popular open-source implementation of the AMQP messaging protocol. It supports a wealth of durability, routing, and fanout strategies, and combines excellent documentation with well-designed protocol extensions. I’d like to set all these wonderful…
This is an archive of the original "fsyncgate" email thread. This is posted here because I wanted to have a link that would fit on a slide for a talk on file safety with a mobile-friendly non-bloated format .
I’m a connoisseur of failure. I love reading about engineering failures of all forms and, unsurprisingly, I’m particularly interested in data center faults. It’s not that I delight in engineering failures. My interest is driven by believing that the more faults we all understand, the more likely we can engineer…
Describes the process of building a QNX 7 x86_64 machine from (almost) scratch.
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This post assumes some basic C skills. Linux puts you in full control. This is not always seen from everyone’s perspective, but a power user loves to be in control. I’m going to show yo…
A guide to a full-featured modern desktop FreeBSD installation
An overview of my work on improving SIMD in Rust.
