Roy van Rijn - Speaker at Devoxx Belgium

OpenValue

Roy van Rijn is a director at OpenValue Rotterdam and a Java Champion. He worked on numerous projects all over the Netherlands as developer, architect and agile coach. He talks at conferences all around the world, CodeOne (Rockstar), Devoxx BE & UK & PL, GOTO, Joy of Coding, and local JUG events. You can read more at his blog (http://www.royvanrijn.com) or follow him on Twitter/X (@royvanrijn).

speakerDetail.talksBy

Gunnar Morling

Decodable

Roy van Rijn

OpenValue

1BRC – Nerd Sniping the Java Community

The text outlines an invitation to a talk on the "One Billion Row Challenge" that involves aggregating temperature values from a large CSV file. The speaker will discuss tricks used by the fastest sol...

Java

Conference 50 min.

INTERMEDIATE

Roy van Rijn

OpenValue

Thomas Wuerthinger

Oracle

Pushing Java to the Limits: Processing a Billion Rows in under 2 Seconds

Last January a challenge was posted online by Gunnar Morling:How fast can you parse a file with one billion rows of weather data using Java?Little did we know this deceivingly simple question would le...

Java

Deep Dive 180 min.

INTERMEDIATE