Hacker News: rusbus

New comment by rusbus in "Principles for Fast Tokio Applications"

rusbus — Mon, 14 Sep 2026 22:20:12 +0000

(I am OP) Both good call outs. Will update the article to include them

New comment by rusbus in "Principles for Fast Tokio Applications"

rusbus — Mon, 14 Sep 2026 20:30:08 +0000

Was this in a specific application? I wouldn't necessarily expect that histogram to be particularly bad for most applications.

New comment by rusbus in "Principles for Fast Tokio Applications"

rusbus — Mon, 14 Sep 2026 20:28:37 +0000

Do you have any resources worth referencing on this? I assume this isn't something that works with tokio more of a replace tokio?

New comment by rusbus in "Principles for Fast Tokio Applications"

rusbus — Mon, 14 Sep 2026 17:59:12 +0000

Note that most of those end up getting inlined in practice

Principles for Fast Tokio Applications

rusbus — Sun, 13 Sep 2026 18:18:09 +0000

Article URL: https://dial9-rs.github.io/blog/principles-for-fast-tokio-applications/

Comments URL: https://news.ycombinator.com/item?id=49686951

Points: 2

# Comments: 0

New comment by rusbus in "New AI tutor achieves 0.71-1.30 SD effect size in Dartmouth course [pdf]"

rusbus — Sun, 05 Jul 2026 19:28:43 +0000

This is exciting because the effect size is so large. But as the author's acknowledged, selection bias is nearly impossible to control for in this non-randomized study:

> and lacks randomized controls. Self-selection is the central threat: students who complete more quizzes may be more motivated or higher-performing generally

But this is still a strong result. I'm excited to see more in this space.

Show HN: Dial9, a tool for diagnosing p99+ performance in Rust programs

rusbus — Fri, 26 Jun 2026 15:18:20 +0000

Article URL: https://github.com/dial9-rs/dial9

Comments URL: https://news.ycombinator.com/item?id=48687685

Points: 1

# Comments: 0

Three bugs that aren't in dial9

rusbus — Sat, 30 May 2026 15:13:39 +0000

Article URL: https://dial9-rs.github.io/blog/3-bugs-that-arent-in-dial9/

Comments URL: https://news.ycombinator.com/item?id=48337122

Points: 2

# Comments: 0

New comment by rusbus in "dial9: A microscrope for Tokio (and Rust applications in general)"

rusbus — Tue, 12 May 2026 13:54:09 +0000

Two years ago someone told me "I wish I could understand what Tokio is actually doing."

This really stuck with me and earlier this year I had both an idea and the time to try to make it happen. I think with dial9 that is finally possible. dial9 is a system to pull in a huge amount of events, very efficiently and analyze them later. Tokio is just one source of those events, but its a very important one.

Once we had Tokio, I realized we could also pull in lots of other sources as well; Linux kernel events, application events, tracing etc. etc.

Folks have already had good luck using dial9 to find tricky issues in prod.

dial9: A microscrope for Tokio (and Rust applications in general)

rusbus — Tue, 12 May 2026 13:54:09 +0000

Article URL: https://github.com/dial9-rs/dial9

Comments URL: https://news.ycombinator.com/item?id=48108348

Points: 1

# Comments: 1

Metrique: A high performance Rust metrics library designed for wide events

rusbus — Sun, 18 Jan 2026 21:46:59 +0000

Article URL: https://github.com/awslabs/metrique

Comments URL: https://news.ycombinator.com/item?id=46672472

Points: 2

# Comments: 0

Metrique: A new high performance Rust metrics library from AWS

rusbus — Tue, 16 Sep 2025 20:39:56 +0000

Article URL: https://github.com/awslabs/metrique

Comments URL: https://news.ycombinator.com/item?id=45267717

Points: 3

# Comments: 0

New comment by rusbus in "MIT Study Finds AI Use Reprograms the Brain, Leading to Cognitive Decline"

rusbus — Wed, 03 Sep 2025 13:43:27 +0000

Does anyone else find it incredibly ironic that this article summarizing the paper was obviously written with AI?

All the headings and bullets and phrases like "The findings are clear:" stick out like a sore thumb.

New comment by rusbus in "Mechanical Watch: Exploded View"

rusbus — Sun, 22 Jun 2025 15:53:12 +0000

perhaps you did not read the post—the author attempted layer-by-layer first but discovered it was impossible to get a smooth final result.

This is apparently a well known issue among people who create resin-cast structures.

New comment by rusbus in "Lessons from Mixing Rust and Java: Fast, Safe, and Practical"

rusbus — Sun, 18 May 2025 10:14:45 +0000

Another useful library in this space that allows you to avoid manually writing bindings is https://github.com/duchess-rs/duchess

New comment by rusbus in "The Cheating Device (ChatGPT on a TI-84) [video]"

rusbus — Fri, 20 Sep 2024 00:57:58 +0000

TLDR: Install a wifi microcontroller _inside_ a TI-84. Make a little app that can talk to ChatGPT.

New comment by rusbus in "AWS Libcrypto for Rust"

rusbus — Sat, 13 Jan 2024 02:47:34 +0000

How crazy is the build chain these days? Well, to build it in FIPS mode you need a Go compiler!

New comment by rusbus in "The New York Times is suing OpenAI and Microsoft for copyright infringement"

rusbus — Wed, 27 Dec 2023 17:38:07 +0000

The verbatim responses come as part of "Browse with Bing" not the model actually verbatim repeating articles from training data. This seems pretty different and something actually addressable.

> the suit showed that Browse With Bing, a Microsoft search feature powered by ChatGPT, reproduced almost verbatim results from Wirecutter, The Times’s product review site. The text results from Bing, however, did not link to the Wirecutter article, and they stripped away the referral links in the text that Wirecutter uses to generate commissions from sales based on its recommendations.

New comment by rusbus in "General Availability of the AWS SDK for Rust"

rusbus — Wed, 29 Nov 2023 15:35:31 +0000

The Rust SDK does not currently use the CRT under the hood. The CRT is a high performance C-Library for fast HTTP connections (and a lot more).

For S3, there is a meta-layer that interceps requests to S3 and converts them into ranged-gets and multipart uploads for parallelization.

It's quite complex and can also use significantly more memory, but it does allow for *much* faster uploads and downloads in some circumstances.

New comment by rusbus in "General Availability of the AWS SDK for Rust"

rusbus — Tue, 28 Nov 2023 18:07:04 +0000

Probably the biggest one is "batteries included but replaceable." The Rust ecosystem is still maturing, so we did a lot of work to make reasonable default choices but still allow customers to make different ones.

Some of our other design tenets are here: https://smithy-lang.github.io/smithy-rs/design/tenets.html