Johannes Rudolph @virtualvoid

Fiddling bits since 2342 @[email protected] blog.virtual-void.net Joined January 2009

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Johannes Rudolph @virtualvoid

a year ago

Almost 50 years ago mastermind Loriot created this visualization of what happens during a rolling upgrade if you implemented sharding naively (w/o consistent hashing) dailymotion.com/video/x2x2dhm

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Download Gif

In other news, I won another prize at the Vesuvius Challenge for vesuvius-gui, an interactive browser for 3D volumes (like the vesuvius scrolls) written in Rust with egui. Thanks a lot to challenge team! scrollprize.substack.com/p/may-progress…

Vesuvius Challenge @scrollprize

a year ago

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Johannes Rudolph @virtualvoid

2 years ago

Thank you, @scrollprize, for awarding me a prize in the Vesuvius Challenge for my Open Source contributions cataloguing released segments and running OS ink detection models on them. It has been a fun journey and great collaboration! blog.virtual-void.net/2023/12/11/ves…

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Jordi Mon Companys @JordiMonPMM

2 years ago

Amazing contributions to the @scrollprize @spacegaier, @virtualvoid and others and congrats for the prizes won! scrollprize.substack.com/p/many-open-so…

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Johannes Rudolph @virtualvoid

2 years ago

A short report on trying out different algorithms for selecting top-p elements from a distribution (aka Nucleus Sampling): blog.virtual-void.net/2023/08/29/cal…

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Apache Pekko @ApachePekko

2 years ago

Apache Pekko Http 1.0.0 has been released, see pekko.apache.org/download.html#… and pekko.apache.org/docs/pekko-htt… for more details. Apache Pekko Http also includes Scala 3.3 support, the result of an ongoing community effort that spanned years!

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Johannes Rudolph @virtualvoid

2 years ago

A Scala port of @karpathy's llama2.c: github.com/jrudolph/llama… Even without optimizations performance is surprisingly acceptable (-6%, single-threaded on GraalVM). Example: asciinema.org/a/599946

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Apache Pekko @ApachePekko

2 years ago

Apache Pekko 1.0.0 has been released, see pekko.apache.org/download.html#… and pekko.apache.org/docs/pekko/cur… for more details. Its been a long road, many thanks to everyone who participated in this!

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Johannes Rudolph @virtualvoid

3 years ago

I wrote up some notes about my experiments of getting started with io_uring: blog.virtual-void.net/2022/10/11/exp… (it contains a bit of example code of getting started with it in Scala without requiring C code).

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Johannes Rudolph @virtualvoid

3 years ago

Recently, our album POP! was awarded the "Best Non-Scholastic Debut Album" in the 2022 CARAs. Also, Twäng just won the AAVF competition (alas, without me). High time for my post about how I built the blinky sign for Twäng last year: blog.virtual-void.net/creating-a-bli…

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Johannes Rudolph @virtualvoid

3 years ago

A quick write up of a deep-dive debugging session from this week at work, tracing back latency spikes in a Yugabyte cluster during a load test: gist.github.com/jrudolph/be4e0…

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Johannes Rudolph @virtualvoid

4 years ago

Published a fun exploration about the maximum compression rate in gzip: blog.virtual-void.net/maximum-compre… (actually written and forgotten a long while ago...)