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Dublin Java UG - Martijn Verburg

Time18:15:47 Phone
DateThursday, April 27, 2017 Web
VenueTechMeetup.Space - Dublin 2 Email


Dublin Java User Group



The Diabolical Developer's Guide to Performance Tuning




Hotspot Garbage Collection Tuning Guide


This month, for the first time, we're welcoming Java Champion Martin Verburg @Karianna

Martijn Verburg is the CEO and co-founder of jClarity a Machine Learning based Java/JVM performance analysis company. and is the co-leader of the London Java User Group. He also leads the global Adopt a JSR and Adopt OpenJDK efforts to enable the community to contribute to Java standards and OpenJDK. He was recently made a Java Champion in recognition for his contribution to the Java ecosystem.


Martijn is the co-author of "The Well-Grounded Java Developer" on Java 7, Polyglot Programming on the JVM and modern software development techniques. Martijn also acts as a community lead for the PCGen and Ikasan open source projects, moderates at the Javaranch and can be found answering thorny questions on the programmers stack exchange sub-site.


Martijn is a popular speaker at major conferences (JavaOne, JFokus, OSCON, Devoxx etc) where he is known for challenging the industry status quo as "the Diabolical Developer".


We are very incredibly priviledged to welcome Martijn to meet members of the Dublin Java User Group.



The Diabolical Developer's Guide to Performance Tuning

The Diabolical Developer shows you the steps to take when you get a call at 3:00am saying that your Java / JVM application is too slow. He introduces the Performance Diagnostic Methodology (PDM) which focuses on how to quickly hone into the root cause of a bottleneck and what steps you can take to fix it. After this session you should only have to take hours, instead of days or weeks to pinpoint performance issues in your apps.



Hotspot Garbage Collection Tuning Guide

With Java being pushed into small (Raspberry Pi's etc) and large (1TB heaps!) form factors, GC tuning has once more become an important skill! To ensure that your JVMs don't excessively pause or use up more space than necessary, you'll need to do some GC tuning. Unfortunately, GC tuning is a bit of a dark art with multiple types of collectors, JVM sizings and varying end user performance requirements to deal with. In this session


Martijn will take you through common tuning scenarios so you can solve the most common memory issues without resorting to random config from StackOverflow.


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The Dublin Java User Group is a resident of, a venue in Temple Bar Dublin designed specifically as a boutique meetup space for specialist software, web, digital and technology meetups. Aside from carefully selected technology presentations, we almost always have Irish craft beer, non-alcoholic drinks, and pizza - you can be assured of a great time in a great community!


Attendance to this event is strictly by registration.







Information & Registration


tcube_200_x_100.gifDATE & TIME: 27th April 2017 / 18:15

VENUE:, Next to Palace Bar, Fleet St, Dublin 2




Book Your Ticket or Find Out More About this Event publishes details of this event for information only which are correct at the time of publication. accepts no responsibility for cancellation, amendment and or loss for whatever reason.



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