Péter Gömöri

BEAM Enthusiast, XProf maintainer

Peter spent quite a few years at Ericsson where he became an Erlang native. Later he utilised his experience in various other industries from sports-betting to online advertisement at Erlang Solutions. Recently, he has joined Appliscale to fight with cloud-scale systems.

Past conferences

Péter Gömöri
Code BEAM Lite Amsterdam 2018
30 Nov 2018
16.30 - 16.50

XProf 2.0 - Evolution of tracing-based investigation

How do you introspect Erlang/Elixir production systems handling a large number of concurrent requests? There are certainly many ways. Peter will present an intuitive, visual debugging workflow with XProf through real-world examples.

XProf was originally created to hunt down performance issues. But actually, we don’t face serious performance problems every single day. So the second major release is focused to create a powerful query tool with which you can easily formulate questions about the system behaviour and get meaningful answers immediately.

Peter will show features we added and how he aims to make the tool modular (with a split architecture) and extensible (via a generalised command framework) to fit multiple setups and use-cases.

Péter Gömöri
Code BEAM STO 2018
31 May 2018
15.30 - 15.55

What are poll sets and why they matter

The upcoming Erlang/OTP 21 release will come packed with exciting features. One of them is the long awaited improvement of IO scalability (think of network sockets and file descriptors). This talk will describe what a poll set is and how it can be a bottleneck. We will see how to measure the impact of the upcoming improvements with an example on a real-world system and discover what scenarios one might benefit from them.


Get a better understanding of poll sets.