~/talks

Jakub Kubryński

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titleconferencedate
No Big Bang Theory: A Decade of Building Our Own ProductConfitura 20232023-06-24
A 2012 product used in 100+ countries evolved without full rewrites by deploying daily, keeping automated tests, and continuously refactoring into a few…
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Architecture and the Architect AD2022Confitura 20222022-06-25
Presents software architecture as a maintainable set of recorded decisions using Architecture Decision Records (ADRs) and structural models with the C4 model…
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Automate all the thingsJDD 20182018-10-08
Argues that automating deployments, tests and infrastructure pays off: using terraform and Ansible to provision and configure VMs, Jenkins to run repeats, and…
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Case study of a good enough architectureJDD 20172017-10-03
Argues a practical “good enough” architecture that prioritizes fast feedback and cost effectiveness by using continuous delivery (deploy artifacts in ~10…
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Utrzymywalne mikroserwisy - naga prawda4Developers 20172017-04-03
Ścieżka: Bottega IT Minds Prawdziwego programistę poznaje się nie po tym jak zaczyna, ale po tym jak utrzymuje. To drugie jest trudne w przypadku systemów…
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JPA - Beyond copy-pasteJDD 20162016-10-10
Explains concrete JPA failures and fixes: persist vs merge causes an extra DB lookup because merge checks existence; column/@Table annotations do nothing…
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-XX:+UseG1GCVoxxed Days Vienna 20162016-03-16
G1 becomes the JDK9 default and splits the heap into 2,000–4,000 fixed regions (1–32 MB) and treats very large arrays as humongous objects if > half a region…
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-XX:+UseG1GCConfitura 20152015-07-04
G1 garbage collector (becoming the default in JDK 9) and how it changes JVM heap structure and handling of large and small collections. The talk explains G1’s…
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What's Going On in Java?Confitura 20132013-07-02
The talk explains how to interpret JVM behavior and logs (PermGen messages, long service calls, intermittent pauses, memory sizing under data growth) using…
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Microbenchmarks performance in the smaller scaleJDD 20122012-10-25
Simple System.currentTimeMillis checks lie: a billion-iteration loop can compile away and report 2 milliseconds because of JIT inlining, dead‑code elimination…
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