Hacker News: michalsustr

New comment by michalsustr in "The Benchmarkpocalypse"

michalsustr — Tue, 18 Aug 2026 07:25:58 +0000

Nice article. As perf optimisation has become more like a machine learning problem, maybe there is opportunity to use other techniques for checking generalisation. Like e.g. cross validation

New comment by michalsustr in "Assembly Hall of Shame"

michalsustr — Fri, 07 Aug 2026 19:44:41 +0000

Very cool! Also, huh interesting. I’ve used rdtsc to measure cycle diffs but had no idea its execution takes that long. Is that common across architectures?

New comment by michalsustr in "Rust – What .boxed() costs you (and a tiny crate to avoid it)"

michalsustr — Thu, 06 Aug 2026 08:12:29 +0000

Hmm so why did boxed() do type erasure in the first place?

New comment by michalsustr in "Moonshot AI suspends new subscriptions due to Kimi K3 demand"

michalsustr — Sun, 19 Jul 2026 19:16:07 +0000

I talked with Hochreiter about 1.5y ago they should go for it and properly scale xLSTM to LLMs, not just playing around with few B params for experiments. They felt like they are too late to the game to get investment and traction. So much for European ambitions I guess...

Frame perfect: Syncing cursor position and app rendering

michalsustr — Wed, 17 Jun 2026 14:25:02 +0000

Article URL: https://github.com/michalsustr/egui-cursor

Comments URL: https://news.ycombinator.com/item?id=48570999

Points: 2

# Comments: 0

New comment by michalsustr in "Stdx: Rust's Extended Standard Library"

michalsustr — Fri, 12 Jun 2026 15:42:41 +0000

Very interesting. What do you want to do about async?

New comment by michalsustr in "Show HN: Micron: a high performance C++23 (re)implementation of Libc and the STL"

michalsustr — Fri, 05 Jun 2026 20:47:13 +0000

Congrats on the launch, this must have been an insane amount of work! I noticed the headers had 2024 in them, so indeed quite some time put in.

It seems the main selling point of micron is speed. You’ve done quite a lot of benchmarking. I think to make the case of micron stronger compared STL it would be cool to publish these benchmarks (where the two are comparable).

New comment by michalsustr in "Performance of Rust Language [pdf]"

michalsustr — Tue, 26 May 2026 21:15:02 +0000

Fantastic presentation! Thank you for sharing.

New comment by michalsustr in "Mini Shai-Hulud Strikes Again: 314 npm Packages Compromised"

michalsustr — Tue, 19 May 2026 10:24:25 +0000

Given general software quality of the js ecosystem, the proliferation of supply chain attacks was just matter of time. I’m curious how other ecosystems will hold (eg Rust)

New comment by michalsustr in "Zerostack – A Unix-inspired coding agent written in pure Rust"

michalsustr — Sun, 17 May 2026 06:35:25 +0000

What language are you building this in? I’m interested but trying to stay away from js world for security reasons.

New comment by michalsustr in "Incident with Actions – Resolved"

michalsustr — Wed, 06 May 2026 07:20:41 +0000

Interesting. So one way to interpret current situation is that Github is "trapped" by its open source offering. This will likely have implications soon on what they do or the direction of open source...

New comment by michalsustr in "Incident with Actions – Resolved"

michalsustr — Tue, 05 May 2026 16:05:39 +0000

Why don’t they just raise GitHub actions prices? Supply and demand, that would sort itself

New comment by michalsustr in "Rust Memory Management: Ownership vs. Reference Counting"

michalsustr — Wed, 29 Apr 2026 17:32:47 +0000

I recently saw a submission here that does that, by essentially implementing GC in Rust. It is not beginner material though. https://kyju.org/blog/tokioconf-2026/

Edit: also the simplest way how to do cyclic structures is to heap-allocate via Box and leak memory. Box::leak This is also mentioned in the linked article.

New comment by michalsustr in "Show HN: Urlx – an agent-made Rust replacement for curl/libcurl"

michalsustr — Tue, 24 Mar 2026 08:34:56 +0000

Next step would be optimize for performance so it’s not slow. LLMs in Rust like to use cloning a lot , which will make it super slow.

New comment by michalsustr in "Show HN: Aethalloc – lock-free Rust memory allocator for Linux"

michalsustr — Wed, 18 Mar 2026 20:33:26 +0000

Very interesting! Im curious, how does this work, it binary patches glibc allocator? AFAIK custom allocators are only in nightly and require generics in the form Vec

New comment by michalsustr in "My Favourite Thing About Rust Is the Compiler"

michalsustr — Thu, 12 Mar 2026 11:38:55 +0000

Mine too! Rust is my favourite language right now.

The complications begin with async. Outside of async it’s a beautiful world.

With async, you tend to get locked down on library ecosystem level, with the dominant approach being work-stealing Tokio runtime, which I disagree with the fundamental design, after doing a lot of research. However, the gravity field of Tokio is strong. To escape it , I had to make a copy of popular crates and dig with LLMs to rewrite them to be free of work-stealing.

New comment by michalsustr in "Show HN: Concryptor – Lock-free 1 GiB/s file encryption using io_uring in Rust"

michalsustr — Mon, 09 Mar 2026 09:41:59 +0000

It would be great to include non-io-uring bench numbers as baselines.

New comment by michalsustr in "Building a new Flash"

michalsustr — Thu, 05 Mar 2026 21:04:42 +0000

This would be great if it compiled to wasm! Rust has great support for it. And you’d get native architecture for free too!

New comment by michalsustr in "Show HN: A live Python REPL with an agentic LLM that edits and evaluates code"

michalsustr — Wed, 25 Feb 2026 20:22:47 +0000

Very cool. How about using caps lock for switching modes? Or vim-style?

New comment by michalsustr in "Show HN: SynapServe – zero-allocation HTTP server in Rust with io_uring"

michalsustr — Wed, 25 Feb 2026 16:01:18 +0000

We might be interested in the technology (not as a VC), if it shows meaningful improvement (>2x) over what we currently do.

If you could show how it compares with a simple replicable baseline, maybe something like C program that just accepts a connection? Lots of these things are hardware-dependent.

Right now we use monoio and have a draft benchmark with speed. Happy to continue talking over e-mail. Should I write to you?