🚀 Mastering Android Performance - An unmissable opportunity

We’re excited to welcome Google’s Android Performance Lead Engineer, Shai Barack, for a deep technical session on how Android evolves under real-world performance pressure.

At the heart of Android’s application framework sits a work queue originally written almost 20 years ago - back when phones had a single CPU and coarse-grained locking was “good enough”. In this talk, we’ll explore how that legacy code was rethought and rewritten using modern concurrent, lock-free programming techniques, and what it takes to ship such changes in Android 17.

This is a true under-the-hood talk: state-of-the-art concurrency algorithms, performance debugging with Perfetto, and even reading disassembled code. If you care about performance, correctness, and how Android really works, don’t miss this one. And don't worry, you don’t need to be an expert — if you’re curious how Android works under the hood, this talk will level you up.

Abstract:At the heart of Android’s application framework is a work queue. The work queue was written 20 years ago, when phones had one CPU and solving concurrency problems with a giant lock was acceptable. In this talk I’ll review how we rewrote this legacy code to use modern concurrent, lock-free programming techniques. We’ll look at state-of-the-art algorithms, troubleshoot lock contention and priority inversion problems with Perfetto, and even read disassembled code in Compiler Explorer. Buckle up!About Shai Barack:
An OS nerd at heart, he's been at Google, working on operating systems for the past 14 years. He currently leads the Android Platform Performance team.

Agenda

---

Speaker

Shai Barack - Google (Lead of Android's Platform Performance team.)

An OS nerd at heart, has been working at Google on operating systems for the past 14 years. He currently lead the Android Platform Performance team.

Hosted By

Carmen Ciulacu, GDG Organizer

Cosmin Stefan, GDG Organizer

Marius Seinoiu, GDG Organiser

I’m passionate about helping people work smarter — not harder — by using technology and AI tools that truly make a difference.

As a trainer and learning experience designer, I focus on online productivity and collaboration, with deep expertise in Google Workspace and Generative AI tools. Over the past 3 years, I’ve guided more than 900 tech enthusiasts to optimize their workflows, communicate more effectively, and adapt confidently to the digital workplace.

My journey in this field builds on over 25 years in Business Development Management, including more than 6 years in the tech Learning & Development industry. During this time, I’ve designed and managed large-scale educational programs in partnership with top companies and foundations — always with the goal of making learning practical, engaging, and impactful.

Today, through my work at Digital Stack, I collaborate with organizations that want to bring innovation and measurable results to their training initiatives.

If you’re looking to explore how AI and smart collaboration tools can unlock your team’s potential, let’s connect — I’m always happy to share ideas and insights.

Valerica Aneci, Engineering Manger

Passionate about android, kotlin, ai, iot and cooking

Alex Bordei, Flutter Developer 💙 & WordPress Expert

👨‍💻 Professionally speaking. I mean, coding 💻

I have over 9 years of experience in software development, starting with a background in C# and JAVA and stepping into Custom Web Development with WordPress and Laravel and always maintaining a very high focus on API development and Integrations.

Since 2017, becoming a Full-Stack WordPress Expert @ Codeable, focusing on WordPress custom development

Currently, WordPress EXPERT @ Codeable and Flutter Developer focused on custom development both for web and mobile platforms.

I LOVE COMMUNITIES, this is why you can find me helping out organizing and co-organizing communities like
Bucharest WordPress Meetup,
Flutter Romania Meetup,
Bucharest Mobile Development Group,
Bucharest IoT Hangouts

I also love to speak and share IT topics at CodeCamp Romania, DevTalks Romania, and WCEU, speaking at more than 50 IT conferences.

Hobby side, we can talk for hours about
📻 Radio and 🎶 Music 🎹 in general. We can also set up some online jamming sessions. I play the 🥁 DRUMS or 🎸 GUITAR or BASS 🎸.

Do you like weekend projects?
Ask me about 🦾 IoT systems, 🤖 robots, and 🕹️ automated systems

And WE CAN TALK FOREVER about 🤗 personal development, ☁️ mindfulness, 🧘 meditation, 💤 healthy sleep, and 💉 🖥️ 💉 hybrid medical technologies

Caplan Robert,

Passionate about technology and eager to try out new things while focusing on Android Development for the past 5 years, constantly exploring new tools and frameworks to build efficient and user-friendly applications.

Alexandru Gatu,

Started the CyberSecurity career since 2011 with my Master Degree in the field, and continuing delivering projects since 2015 in Endava engaging with various industries as cybersecurity consultant.

Lucian Gruia,

Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-bucharest-presents-mastering-android-performance-an-unmissable-opportunity/.