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Moritz Hoffmann

@antiguru.bsky.social
68 followers 68 following 26 posts

Computer scientist at @materialize.com. Systems, databases, dataflows. Playing the bass guitar.

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Moritz Hoffmann @antiguru.bsky.social · 15h
New blog post: Making disk a first-class citizen in @materialize.com materialize.com/blog/materia...
materialize.com
Materialize, Out-of-Core: Replacing Swap with a Buffer Pool | Materialize
Materialize is moving beyond kernel paging to an application-managed buffer pool, keeping hot data in memory and serving sequential and batched work from disk.
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Moritz Hoffmann @antiguru.bsky.social · 29/04/2026
Made a thing: Pollard is a MCP server for analyzing Firefox performance profiles. crates.io/crates/pollard
crates.io
crates.io: Rust Package Registry
crates.io serves as a central registry for sharing crates, which are packages or libraries written in Rust that you can use to enhance your projects
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Moritz Hoffmann @antiguru.bsky.social · 18/09/2025
Highlighting some of my team's recent work: We've changed Materialize to use swap instead of memory-mapped files, with nice performance and efficiency improvements.
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Moritz Hoffmann @antiguru.bsky.social · 15/09/2025
Based on Timely 0.24, we released Differential Dataflow 0.17. Compatibility changes plus removing the Filter and Freeze wrappers because they weren't used and difficult to maintain. github.com/TimelyDatafl...
github.com
Release differential-dataflow-v0.17.0 · TimelyDataflow/differential-dataflow
Other Adjust Differential to recent Timely changes (#643) Remove Filter and Freeze wrappers (#644)
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Moritz Hoffmann @antiguru.bsky.social · 15/09/2025
We just released Timely Dataflow 0.24! Here are some exciting changes from @frankmcsherry.bsky.social and myself. The container abstractions got a complete rework, and we introduce a new pattern to distribute data. Details below. github.com/TimelyDatafl...
github.com
Release timely-v0.24.0 · TimelyDataflow/timely-dataflow
This version of Timely has some exciting new features. The Distributor trait offers a generalization of the Exchange type. It allows users to define custom distribution strategies for routing data...
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Moritz Hoffmann @antiguru.bsky.social · 25/06/2025
A lot of performance improvements went into this one!
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Reposted by Moritz Hoffmann
Materialize @materialize.com · 15/05/2025
The Materialize engineering team uncovered a rare concurrency bug 🪲in Rust’s 🦀 unbounded channels that could lead to double-free memory errors. After thorough debugging and working with the Rust and crossbeam communities, the fix is now part of @rust-lang.org 1.87.0. 🔗 bit.ly/3Fan1Om
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Reposted by Moritz Hoffmann
Nate Stewart @nate-stewart.bsky.social · 11/04/2025
Agents generate more data and place more demand on systems than ever before—and standards like MCP will only accelerate this trend. Learn how Delphi is rethinking how they build data-intensive applications—from the db to the UI: bit.ly/42BZdf9
bit.ly
Scaling queries on agent-produced data: How Delphi transformed its data infrastructure
Join our webinar with Delphi to discover they evolved their data infrastructure to handle the rapid increase in AI-driven interactions with Materialize.
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Reposted by Moritz Hoffmann
Frank McSherry @frankmcsherry.bsky.social · 11/03/2025
I'm very excited to share that @materialize.com now has a Self-Managed option, as well as a Community Edition license that lets you play around with the exact same bits but for free. materialize.com/blog/materia...
materialize.com
Materialize For Everyone: Introducing Self-Managed and our Free Community Edition
Unlock real-time data transformation with Self-Managed Materialize. Now, deploy Materialize in your own cloud for security, compliance, and performance control—powered by the same battle-tested, incre...
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Reposted by Moritz Hoffmann
Frank McSherry @frankmcsherry.bsky.social · 22/01/2025
For interested folks, the RustNYC presentation I gave about the `columnar` crate is now available in the repo: github.com/frankmcsherr... It's not as good without the talk track, but it's got the benchmark results, you can admire the stylistic watercolors (so therapeutic to make; strong recommend).
github.com
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Moritz Hoffmann @antiguru.bsky.social · 22/01/2025
We just landed the first use of the columnar crate in Materialize! Stay tuned for more. github.com/MaterializeI...
github.com
Columnar in logging dataflows by antiguru · Pull Request #30883 · MaterializeInc/materialize
Convert logging dataflows to columnar The aim of this PR is to convert some of the logging dataflows to use columnar data on dataflow edges, wherever it makes sense to do so. It introduces building...
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Moritz Hoffmann @antiguru.bsky.social · 15/01/2025
I wrote a bit about efficient maintenance of temporal filters in @materialize.com. By periodically restarting replicas, we can limit resource requirements (RAM and CPU), all without any other user-visible impact. materialize.com/blog/replica...
materialize.com
Replica expiration: Limiting temporal filters' resource requirements
Replica expiration is a new feature in Materialize that limits the resource requirements of temporal filters.
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Moritz Hoffmann @antiguru.bsky.social · 29/12/2024
An ocelot with an odd shape at the Museum für Naturkunde in Berlin.
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Reposted by Moritz Hoffmann
Frank McSherry @frankmcsherry.bsky.social · 23/12/2024
I was recently coveted a 10 year journal on jetpens, because that would be cool to do, and realized that I already had one! The blog turns 10 this month, and I thought it might be worth taking a tour through each of the years and seeing what I can jot down about each. github.com/frankmcsherr...
github.com
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Moritz Hoffmann @antiguru.bsky.social · 07/12/2024
Origami tree at the @natural-history.bsky.social
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Moritz Hoffmann @antiguru.bsky.social · 27/11/2024
Sonne additional details by @frankmcsherry.bsky.social bsky.app/profile/fran...
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Moritz Hoffmann @antiguru.bsky.social · 27/11/2024
Sometimes it's easier to mitigate a problem than solve it: a feature I recently implemented reduces the memory and CPU @materialize.com requires to maintain future updates. Some details why solving the problem is hard and the mitigation easy-ish. materialize.com/changelog/20...
materialize.com
Improved performance for temporal filters
Optimization time! We've significantly reduced the cost of using temporal filters in Materialize.
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Moritz Hoffmann @antiguru.bsky.social · 27/11/2024
Enjoying the call of the coquí in Puerto Rico
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Moritz Hoffmann @antiguru.bsky.social · 23/11/2024
Just published lgalloc 0.4.0. The only change is that stats don't print errors anymore but forward to the caller. Docker on MacOS doesn't present numa information! crates.io/crates/lgalloc
crates.io
crates.io: Rust Package Registry
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Moritz Hoffmann @antiguru.bsky.social · 22/11/2024
Interesting article on the future of aircraft design: hackaday.com/2024/11/21/b...
hackaday.com
Blended Wing Body Passenger Airplanes And The End Of Winged Tubes
Ask someone to picture an airplane and they’re likely to think of what is essentially a tube with wings and a stabilizing tail tacked onto one end of said tube. Yet it is also no secret that …
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