March 2014 Blog Posts (4)

Seven Versions of One Web Application

Building HTML5 Apps from Desktop to Mobile



Free Webcast Tuesday, April 8, 2014



Join Yakov Fain in this fast-paced comparison of different ways of developing HTML5 Web applications.

We'll start with architecture and code review of a basic HTML/JavaScript version of a sample charity application, switch to its jQuery version, then show how to do it with Ext JS framework.



In the second part of the webcast, we'll move the app to mobile. First we'll implement the… Continue

Added by Michael Levin on March 29, 2014 at 4:08pm — No Comments

Java 8 Resources (thanks to Mattias Karlsson)

Guess you know about all the resources and video cast Oracle provided

at the Java 8 Launch site:

http://www.oracle.com/events/us/en/java8/index.html



On top of that we have released all Java 8 talks from Jfokus 2014

including the Keynote with Georges Saab and Mark Reinhold.



Except the talks from a number of Oracle speakers you can find these

and many more:

-Java 8 Language…

Continue

Added by Michael Levin on March 29, 2014 at 9:01am — No Comments

Stack Overflow, Communities and Intimidation

We envision Codetown to be a free flow of ideas and questions in addition to a networking tool we also post events on. Here's an interesting take on participation and intimidation on Stack Overflow. Ideas? Comments? …

Continue

Added by Michael Levin on March 8, 2014 at 11:32am — No Comments

OSCON is coming!

OSCON is the O'Reilly Open Source Conference. And, it's right around the corner! The call for papers just occurred. It is an annual event that occurs in Portland, OR and this year it's July…

Continue

Added by Michael Levin on March 8, 2014 at 6:20am — No Comments

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Notes

Welcome to Codetown!

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.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
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InfoQ Reading List

Pinterest Reduces Spark OOM Failures by 96% Through Auto Memory Retries

Pinterest Engineering cut Apache Spark out-of-memory failures by 96% using improved observability, configuration tuning, and automatic memory retries. Staged rollout, dashboards, and proactive memory adjustments stabilized data pipelines, reduced manual intervention, and lowered operational overhead across tens of thousands of daily jobs.

By Leela Kumili

Presentation: Duolingo's Kubernetes Leap

Franka Passing discusses the architectural shift of Duolingo’s 500+ backend services to Kubernetes. She explains the move toward GitOps with Argo CD, the transition to IPv6-only pods, and the "cellular architecture" used to isolate environments. She shares "reports from the trenches" on managing developer trust, navigating AWS rate limits, and productionizing early adopter services.

By Franka Passing

Article: A Better Alternative to Reducing CI Regression Test Suite Sizes

How can you focus in a sea of results from a large regression test suite? This article describes a stochastic approach that relies on some degree of redundancy in your CI regression test set. This approach does not guarantee you will catch every bug every time, but it gives you your best bet of not missing the subtle signatures of all the bugs uncovered by your CI regression test suite runs.

By James Bornefelt Westfall

Podcast: Context Engineering with Adi Polak

In this episode, Thomas Betts and Adi Polak talk about the need for context engineering when interacting with LLMs and designing agentic systems. Prompt engineering techniques work with a stateless approach, while context engineering allows AI systems to be stateful.

By Adi Polak

Dynamic Languages Faster and Cheaper in 13-Language Claude Code Benchmark

A 600-run benchmark by Ruby committer Yusuke Endoh tested Claude Code across 13 languages, implementing a simplified Git. Ruby, Python, and JavaScript were the fastest and cheapest, at $0.36- $0.39 per run. Statistically typed languages cost 1.4-2.6x more. Adding type checkers to dynamic languages imposed 1.6-3.2x slowdowns. Full dataset available on GitHub.

By Steef-Jan Wiggers

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