1171
We chose Java for our high-frequency trading application
In the world of High-Frequency Trading, automated applications process hundreds of millions of market signals every day and send back…
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 2,232 posts.
1172
Whom the Gods Would Destroy, They First Give Real-Time Analytics (2013)
Homer: There's three ways to do things. The right way, the wrong way, and the Max Power way!
1173
All Hail Geometric Algebra
Rotate a cube by 90 degrees around the \(x\)-axis, then rotate it by 90 degrees around the \(z\)-axis. This is equivalent to a single rotation. What is the axis and angle of this single rotation?
1174
Arena allocator tips and tricks
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…
1175
Programming blogs
This is one of those “N technical things every programmer must read” lists, except that “programmer” is way too broad a term and the styles of writing people find helpful for them are too different for any such list to contain a non-zero number of items (if you want the entire list to be helpful to everyone). So…
1176
Amount of profanity in git commit messages per programming language
Andrew Vos's personal site
1177
1178
SQL:2023 is finished: Here is what's new
SQL:2023 has been wrapped. The final text has been submitted by the working group to ISO Central Secretariat, and it’s now up to the ISO gods when it will be published. Based on past experience, it could be between a few weeks and a few months.
1179
How to zero a buffer
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…
1180
1181
Some of the error messages produced by Apple's MPW C compiler (2006)
These are some of the error messages produced by Apple's MPW C compiler. These are all real. (If you must know I was bored one afternoon and decompiled the String resources for the compiler.) The compiler is 324k in size so these are just an excerpt I hope. I'm not sure where I stand on the copyright issue. Tony…
1182
LLVM for Grad Students (2015)
LLVM is a godsend of a research tool. Here are some detailed notes on what LLVM is, why you would want to use it for research, and how to get started as a compiler hacker.
1183
1184
Doom engine code review
Before studying the iPhone version, it was important for me to understand how Doom engine WAS performing rendition back in 1993. After all the OpenGL port must reuse the same data from the WAD archive. Here are my notes about Doom 1993 renderer, maybe it will help someone to dive in. January 13th, 2010 : Reddit…
1185
Crafting Interpreters: 640 Pages in 15 Months
My book Crafting Interpreters on programming languages is done. OK, OK. I know I said it was done like fifteen months ago . But now it’s really done. And by that I mean, the print, e-book and PDF versions are done. You can buy it . You can hold it in your hands. And I do mean “hands” plural. Because this little…
1186
How to open a file in Emacs: a story about Lisp, technology, and human progress
A short story about Lisp, technology, and human progress.
1187
1188
Things Unix can do atomically (2010)
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.
1189
Reflections on Rusting Trust
The Rust compiler is written in Rust. This is overall a pretty common practice in compiler development. This usually means that the process of …
1190
Rye and Uv: August Is Harvest Season for Python Packaging
My thoughts on Rye and uv.
1191
Programming the Z3 SMT solver
Abstract. This tutorial provides a programmer ' s introduction to the Satisfiability Modulo Theories Solver Z3. It describes how to use Z3 through scripts, provided in the Python scripting language, and it describes several of the algorithms underlying the decision procedures within Z3. It aims to broadly cover almost…
1192
Lexical differential highlighting instead of syntax highlighting
This type of highlighting is ideal for assembly. With it, the things that shouldn't seem similar usually don't.
1193
Making Rust binaries smaller by default
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.
1194
Writing a GPT-4 script to check Wikipedia for the first unused acronym
Curious what the first ‘unused’ alphabetic acronym is, I have GPT-4 write a script to check English Wikipedia. After three bugs, the first unused one turns out as of 2023-09-29 to be the three-letter acronym ‘CQK’, with another 2.6k TLA unused, and 393k four-letter acronyms unused. Exploratory analysis suggests…
1195
Against Essential and Accidental Complexity
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…
1196
1197
Basics of Neural Networks with example codes and illustrations
I began with inanimate objects living in a world of forces, and I gave them desires, autonomy, and the ability to take action according to a system of
1198
Garbage Collection
We say Lox is a “high-level” language because it frees programmers from worrying about details irrelevant to the problem they’re solving. The user becomes an executive, giving the machine abstract goals and letting the lowly computer figure out how to get there.
1199
Modern C for C++ peeps (2019)
(update 26-Aug-2020: the MSVC team has recently added C11language support to their roadmap, hooray!)
1200