Great talks, nice people and a wonderful evening! There will also be Pizza, first come first served as usual!

Topics

How to memoize

Memoization is an optimisation technique that works by caching the results of slow functions. It’s easy to implement, but a production-ready implementation is considerably trickier. And how do you test that your implementation is correct, and useful?

I’ll show you the tricky bits in implementing memoization, where I’ll touch on Ruby metaprogramming and memory management. Lastly, I’ll show how to measure and verify that memoization is meaningful.

References: ddmemoizeddmetrics

Ensure that your command only run once at the same time... WORLDWIDE.

We have some tasks that are trigger every couple of minutes. In case the cluster was slow, we had the problem that new tasks was scheduled before the previous one being done. Making the cluster exponentially slower. So we sit back and think. What can we do to actually prevent this from happening?

Tools, tools everywhere

Feedback form: https://goo.gl/forms/LbsYT3caeln7UgQ83

Resources, notes, slides: https://github.com/dcarral/ruby-tools

“Tools amplify your talent. The better your tools, and the better you know how to use them, the more productive you can be.” — The Pragmatic Programmer

There are a myriad of open-source (Ruby) tools which can help us in our day-a-day coding activities. Most of them, however, are unknown or rarely used by most developers.

During this session we're gonna walk through some of them, covering interesting configuration options and discussing ideas on how to incorporate them into our development workflow.

Attendees: (30)

Wiktoria Dalach
Events: 6
Topics: 0

Organizer

Tobias Pfeiffer
Events: 101
Topics: 15

Carsten Behnert
Events: 27
Topics: 0

alter.is Ian
Events: 26
Topics: 0

Johannes Lüdke
Events: 4
Topics: 0

Guilherme Pasqualino
Events: 27
Topics: 0

Yuri Veremeyenko
Events: 2
Topics: 0

Peter Tadros
Events: 4
Topics: 0

Jan Lelis
Events: 50
Topics: 7

Daniel Carral
Events: 5
Topics: 2

Andreas Finger
Events: 15
Topics: 0

Christoph Sassenberg
Events: 20
Topics: 0

Max Mulatz
Events: 20
Topics: 2

RKushnir
Events: 29
Topics: 0

Miguel Schmitz Grazziotin
Events: 8
Topics: 0

Hernan Maguina
Events: 22
Topics: 0

Christoph Grabo
Events: 83
Topics: 1

Yanhao Yang
Events: 3
Topics: 0

Salomanuel
Events: 7
Topics: 0

Cameron Prebble 🇳🇿
Events: 45
Topics: 0

Toño Serna
Events: 46
Topics: 0

kaja
Events: 34
Topics: 1

Sudhanshu Kumar Singh
Events: 18
Topics: 0

Daniel Temme
Events: 2
Topics: 0

Peeyush Singla
Events: 6
Topics: 0

Zhuo-Fei Hui
Events: 34
Topics: 1

Antje Marx
Events: 1
Topics: 0

Organizer

Amr Abdelwahab(عمرو)
Events: 30
Topics: 5

StefanosX
Events: 19
Topics: 1

Kannan Reghu
Events: 1
Topics: 0

Route