Codetown ::: a software developer's community
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Posted on August 29, 2025 at 5:32pm 0 Comments 0 Likes
August 28 2025, Newsletter no. 297 (this newsletter is available in html format at http://www.javaperformancetuning.com/news/news297.shtml )
As usual before a Java release, I'm listing all the new…
Posted on August 24, 2025 at 11:59am 0 Comments 0 Likes
ContinueHi Everyone,My publisher is running a free Amazon Kindle book promotion through Monday, August 25th, 2025. The book, “Eclipse Collections Categorically: Level up your programming game” can be obtained for $0 on Kindle on Amazon through the August 25th.…
Posted on June 9, 2025 at 9:37am 0 Comments 0 Likes
Vibe coding isn’t a formal technical term, but it’s become a slang or colloquial expression among programmers and tech communities—especially on social media and in creative coding circles.
What “vibe coding” usually means:
Posted on March 25, 2025 at 4:30am 0 Comments 0 Likes
Learning about artificial intelligence? You may find this interesting.
https://arstechnica.com/ai/2025/03/you-can-now-download-the-source-code-that-sparked-the-ai-boom/
Posted on December 1, 2023 at 3:48am 0 Comments 0 Likes
Thanks Mike! What a blast from the past! That Red Hat swag! ;-). Jim
Thanks for the invite!
I didn't mean to make you feel bad, I know how busy you must be. It's just we could do more to promote this site. Does the twitter thingie work for you?
Thanks so much for the birthday wishes. I know it's so late getting back to you but I don't check this website very often.
Thanks for the invitation and the birthday wishes, Mike!
Thanks. I'm interested either way (either 10/25 or the rescheduled day).
Sure Mike. I can do that
Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Check out the Codetown Jobs group.

Madelyn Olson discusses the evolution of Valkey's data structures, moving away from "textbook" pointer-chasing HashMaps to more cache-aware designs. She explains the implementation of "Swedish" tables to maximize memory density. She shares insights on systems intuition, memory prefetching, and the rigorous testing needed for mission-critical caches.
By Madelyn Olson
The Cloud Native Computing Foundation (CNCF) has announced a major evolution of Istio, introducing new capabilities aimed at making service meshes “future-ready” for AI-driven workloads.
By Craig Risi
This article walks you through the Go implementation of Bloom filters to optimize the performance of a recommender. It cover the architectural view, Bloom filter mechanics, Go integration, parameter tuning, and practical lessons learned from making it work under production constraints.
By Gabor Koos
Designed to manage concurrent agents running in containers across local and remote compute, Scion is an experimental orchestration testbed that enables developers to run groups of specialized agents with isolated identities, credentials, and shared workspaces.
By Sergio De Simone
Anthropic's Claude Code CLI had its full TypeScript source exposed after a source map file was accidentally included in version 2.1.88 of its npm package. The 512,000-line codebase was archived to GitHub within hours. Anthropic called it a packaging error caused by human error. The leak revealed unreleased features, internal model codenames, and multi-agent orchestration architecture.
By Steef-Jan Wiggers
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