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#60.2 - 17.03.2020

#60.2 If everything seems under control, you just aren’t going fast enough

Prelegent: Jarek Pałka

Did you ever wonder what you need to do to make your code run faster? Have you ever wondered how to become a “performance man”? Perhaps you deal with a performance from time to time, from one failure to the next “severity 1” incident? And you have this weird feeling that you are doing it wrong? Maybe you’ve never bothered how fast your code runs. It has been known for ages that this is always a database problem (or someone else’s problem). Or maybe it’s just hard to admit that you don’t know how to improve your code?

In this presentation, I will show you how to become a programmer aware of the performance of your code. Accompanied by tools such as JMH, JFR and flame graphs. We will focus not only on tools but also on the process of optimizing performance. We will talk about how good quality, the so-called Clean code affects performance, why the data sets we use are crucial, and when more is not faster.

Jarek Pałka

For more than 20 years in the IT industry, as a database administrator, programmer, architect, manager and "onsite disaster engineer". At the moment, working at Neo4j as performance engineer, enjoying the way of code, and exploring dungeons of JVM and OS, after few years as chief architect in SaaS business and teach lead in I took part in small, medium and large projects nonsense, under the principles of "Waterfall", Agile and in the absence of any methodologies, always with the same effect. What led me to the conclusion that no matter what you do, as long how you do it well, in the simplest possible way and use appropriate tools that do the work for you. In the meantime, I fell in love in the ideas of TDD and Software Craftsmanship, to the limits exploring beautiful in its simplicity ideas as REST and NoSQL, only to abandon them to explore the secrets of "systems thinking" and admire the strength that brings "metaphor" and discover that we are all objects in an eternal virtual machine. Humble follower of the church of JVM, bytecode and JIT researcher, exploring all sorts of parsers, interpreters and compilers. From time to time you can hear my low-quality jokes about architecture conferences in Poland. I am also author of a blog on and self-proclaimed dictator in the program committee at SegFault ,CoreDump, 4Developers and JDD conferences.

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