Dear #DB, two long distance rides with two transfers each. Both rides on time, from end to end. Small delay from Cologne to Frankfurt but buffered off in Frankfurt. Thank you.
René Schwietzke
#QA and #softwaretest person, #developer, #Java performance dude, web performance dude, a dude in general.
This account focuses on nerd stuff such as software and often Java or other programming magic.
Thanks for attending my talk. More than 200 people showed up. It was a blast. Thanks for all the positive feedback.
And yes, it is still Java code, but highly optimized. :)
As promised, the slides: https://training.xceptance.com/java/460-the-first-80p-of-1BRC-parallel-edition.html
Starting to @jcon@mastodon.social in Cologne now... and it is raining cats and dogs.#jcon2026
@jorge@social.jagedn.dev I think the Chinese will pressure, and there might be eventually one company that goes truly open source with a model. Also, a lot of research is open. A Mozilla LLM model park so to speak... even though Mozilla really lost a lot of credit.
@jorge@social.jagedn.dev They likely played the burn-tokens and get recognized game, as many larger companies did. It was not about sensible work, just about weird metrics.
@otfrom@functional.cafe But GitHub is hosted and the other two are self-hosted. Not entirely the same. Or did I miss something?
We have been running Gitlab Community for ages. Too many security releases IMHO but besides that, it runs fine. Self-hosted on a private Hetzner machine in Finland.
Just got the information that I have to pay 2 cents less in May per kWh electricity than April. 28.2 Cents. It is a dynamic price and set per month based on energy prices at EEX.
If you are keen to learn how and how far you can optimize data processing to save CPU and memory, basically money 💰, I invite you to my #JCON2026 talk: "Conquering a Billion Rows with Java Concurrency".
I promise a huge "Wow, really?".
📅 Wednesday, 22 April 2026, 17:00 CEST
📍 Cinema 6, Cinedom Cologne, JCON
Even if we would stop using AI for production coding, the fact alone that you can build great demos and prototypes to show people what could be done, is priceless. Just churning through ideas as a product owner without the need to first sell your blurry ideas to someone else to get those prototyped... Priceless.
📢 JUG Saxony Treffen bei Xceptance in Jena: Softwarearchitektur im Team in Eigenregie bewerten
👉 183. Treffen der Java User Group Saxony
🗓️ Wann: Donnerstag, 10. September 2026, 18:00 Uhr
📍 Wo: Xceptance GmbH, Leutragraben 2-4, 07743 Jena
🗣️ Referent: Stefan Zörner (embarc Software Consulting GmbH)
Wir freuen uns auf Eure Teilnahme!
Mehr dazu und zur Anmeldung: https://jugsaxony.org/timeline/2026/9/10/LASR
Liebe deutsche Politik, ohne großen Wurf, der allen wehtut wird es nix. Wir brauchen eine flexiblen Arbeitsmarkt, weniger Steuern und weniger Steuerregelwerk, aber mehr Kontrolle.
@jorge@social.jagedn.dev I also think that self-hosted models will become more popular with smaller companies and coders. Not the latest stuff, but good enough. The price war will start soon again and sooner or later the overall cost must drop for larger hosters as well to make it work.
Moving to their own chips is just the start.