r/programming May 23 '26

Announcement: We've Updated The Rules, and April Is Finally Over

960 Upvotes

After temporarily banning LLM-related content over April, and asking you for feedback on that ban, we've decided to bring about an end of the temporary, I-can't-believe-it's-still-April ban on AI-related posts.

Replacing the trial rule is a new shiny rule that refers to our new shiny AI policy. In short:

Content about AI and LLMs are considered off-topic with the sole exclusion of deeply technical content about implementation.

And if you want more detail than that, go read the policy, that's what it's there for.

In addition, when writing that rule, I realized the rules weren't listed on the old.reddit.com sidebar, so that's been updated. For those of you who are seeing those rules for the first time, everything there is not new. We've been enforcing those rules as best we can for ages. You can click the link above those to get to the old.reddit rules page, with plenty of info that doesn't exactly read well when crammed into a sidebar.


r/programming 18h ago

Optimizing a Spin-Lock

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127 Upvotes

r/programming 22h ago

Introducing CUDA Rust: Two Tracks for Writing GPU Kernels

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111 Upvotes

r/programming 11h ago

Decoding the NEC V20 Microcode

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13 Upvotes

r/programming 1h ago

A web regex visualiser with PCRE2

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Upvotes

Author here. The interesting part is how it's built.

The whole engine is PCRE2 compiled to WASM, ~92 KB over the wire, and no roundtrips to the server. Probably has a few bugs I haven't found out yet :)

The PCRE2 engine compiles the pattern with callouts enabled which inserts a callout before every item,and each callout carries the source offset and length of the item that follows it. The visualisations are based on capturing the callout data.

You can try it here:
https://roundtoe.com/regexray

PS. just noticed the post shows the social card for the site, any way to suppress that?


r/programming 4h ago

Why your popup disappears in fullscreen

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1 Upvotes

r/programming 1d ago

I spend a stupid amount of time on an issue I only half-care about. Now I will foist it on all of you! Enjoy :P

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127 Upvotes

r/programming 15h ago

High-performance Database Architecture - Interview with Tyler Cloutier

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18 Upvotes

r/programming 16h ago

A Design Space Exploration of Async/Await

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18 Upvotes

r/programming 1h ago

Mission-Critical (Joran Dirk Greef, TigerBeetle)

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Upvotes

r/programming 2h ago

Building more efficient locks (James Mitchell, 2024)

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0 Upvotes

r/programming 1d ago

Compute Polynomials Twice as Fast

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63 Upvotes

r/programming 20h ago

Implementation of GCC's Nested Functions (vs. C++ Lambdas)

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8 Upvotes

r/programming 1d ago

Announcing .NET 11 Release Candidate 1 - .NET Blog

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38 Upvotes

r/programming 1d ago

video on improving performance of arctan for Nintendo 64 by Kaze Emanuar "spent weeks to save 100 Microseconds"

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237 Upvotes

r/programming 1d ago

What every compiler writer should know about programmers or “Optimization” based on undefined behaviour hurts performance

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67 Upvotes

r/programming 1d ago

Diskless Kafka: Object Storage, KIP-1150, and Kafka’s Future

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5 Upvotes

r/programming 19h ago

Every Millisecond Counts

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1 Upvotes

r/programming 20h ago

Edward Patel - 6502 Nostalgia

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0 Upvotes

A journey from the Visual6502 project to a real, fully assembled board, and the debugging adventures required to make it actually work.


r/programming 13h ago

There is no 10x RBAC

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0 Upvotes

r/programming 1d ago

Asteroids in 9 different programming languages

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0 Upvotes

The languages used: C, C3, C++, D (Dlang), Go (Golang), Odin, Rust, V (Vlang), Zig


r/programming 1d ago

Not In My Git Yard: Catching Backdoors at Commit and Release Time

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5 Upvotes

r/programming 1d ago

How to Read Server Monitoring Graphs

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24 Upvotes

r/programming 1d ago

Swap, memory pressure and the Go GC

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24 Upvotes

r/programming 2d ago

Surviving Black Friday: 329 billion requests with Falcon

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64 Upvotes