.NET Performance Conference

10-11 October 2019

Warsaw - Poland

The Dotnetos Conference is premium, two-day conference focused on the .NET Core and .NET performance. Top-notch speakers from around the globe and companies like Microsoft or JetBrains. Chance to meet well-known people from .NET community in person!

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Add to My Calendar 2019-10-10 09:00:00 2019-10-11 18:00:00 Europe/Warsaw Dotnetos Conference Digital Knowledge Village Szymon Kulec, Konrad Kokosa, Łukasz Pyrzyk

Who will be DOTNETOS this time?

What is the agenda?


Dotnetos Conference is delivered to you by three Dotnetos:


Choose your favorite pass for the event.

Early Bird
PLN 512
  • + 23% VAT
Sold out
PLN 768
  • + 23% VAT
Sold out
Late Bird
PLN 1024
  • + 23% VAT
  • 16th of September - 10th of October
Sold out


Register to one of the awesome pre-conference workshops:
9 October 2019
Level up your coding with JetBrains Rider
Matt Ellis

As developers, we spend a lot of time inside our IDEs. This half day workshop will show you how good tooling can reduce the pain points of coding, and by the end of the session, you'll have learnt how Rider, JetBrains' standalone, cross platform .NET IDE, can help you effortlessly navigate your code, help you read and learn your codebase better, and write code faster and cleaner than ever before. We'll also see what the "I" in IDE stands for, and see how essential tooling such as version control and database management is seamlessly integrated. It's time to invest in your tools.

PLN 384
EUR ~90
+ 23% VAT
9 October 2019
Using CPU intrinsics in C#
Dan Shechter

During this workshop, we will take existing computational code which is already implemented in C# as normal scalar code, and re-write it using AVX/AVX2 CPU intrinsics that will outperform our baseline scalar version and hopefully see large (order of magnitude) speedups compared to the already optimized scalar code. We will also talk about CPU pipelines, branch prediction and code efficiency, as all of those topics go hand in hand with CPU intrinsics. We will learn not only how to write intrinsics based code but also patterns for testing it and benchmarking.

PLN 768
EUR ~180
+ 23% VAT
Sold out
9 October 2019
Dotnetos Dotnetos
.NET Core performance profiling in Nethermind Ethereum real-world examples
Tomasz Stańczak, Piotr Gankiewicz

We will go over many real-world optimization examples used in Nethermind. Participants will use multiple profiling tools to analyse many .NET Core tools and concepts – Span<T>, stackalloc, multithtreading, SIMD, hardware intrinsics, Bloom filters and others. Participants will learn about various optimizations techniques and learn to analyse the results using Benchmark.NET for micro-benchmarking and CPU and memory profilers for tracking application-wide performance results.

PLN 768
EUR ~180
+ 23% VAT
Sold out


Two great days

Two days full of knowledge about .NET internals and .NET performance. Your developer's life will not be the same! And meals will be great too!

Excellent speakers

Top-notch speakers about .NET performance and internals from Poland and abroad. You know them for sure, let's hear them live!


A professional and pleasant place to comfortably deal with the topics presented - Digital Knowledge Village!


Small surprises will be there also! You won't return empty-handed (besides great knowledge and networking opportunity).


They love it. Read what the previous attendees had to say!

Frequently Asked Questions
When more details will be published?

Full agenda is already published.

What will be presented there?

Detailed agenda is to come. But be prepared for low-level, yet still practical knowledge about JIT, Garbage Collection, memory usage, unsafe code, benchmarking, and so on, and so forth.

How will the meeting look?

This is two day conference with around one-hour talks. Of course, there will be time for breaks with some nice food and beverages, including lunch. Then less official part comes in the evening between two days to have conversations in more relaxed atmosphere!

In what language will the talks be given?

All talks, including those from Polish speakers, will be given in English. This is by design international conference!

What payment types do you accept?

All payments accepted by Evenea are accepted.

Who we are?

Dotnetos is an initiative of three .NET fans. We love this technology and we love performance. We love to get deep into how it works. And we love to share the knowledge we gain. We organize tours, conferences (both public and on-site) and trainings. Contact us if you or your company are interested!

How to get to the conference?

The best option is to take Uber or Bolt. Another way to get from the city center or different areas is to get to Wilanowska Metro station and take a taxi or a bus number 709/715/727/739 from the bus terminus which is situated above the station | 5,5 km | 7 stops ride.

Accessibility information

Foyer and conference room are situated on the ground floor. They are easily accessible. All the facilities can be accessed via elevator and/or stairs.

Where can I find the best accommodation? (3-star) - good opinions and value for money | less than 2 km from the place of the Conference on foot, 4 stops by 4 buses (709, 715,727, 739) pension | cosy rooms | possibility to have breakfast 500 metres further *or full B&B at | 1,5 km from the place of the Conference (4-star) - tested by Dotnetos (4-star) - both hotels are are situated by the airport, with fast connection via taxi to the place of the conference | 8 km

Code of conduct

All attendees, speakers, sponsors and volunteers at our conference are required to agree with the following code of conduct. Organisers will enforce this code throughout the event. We expect cooperation from all participants to help ensure a safe environment for everybody.

Our conference is dedicated to providing a harassment-free conference experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion (or lack thereof), or technology choices. We do not tolerate harassment of conference participants in any form. Conference participants violating these rules may be sanctioned or expelled from the conference without a refund at the discretion of the conference organisers.If you are being harassed, notice that someone else is being harassed, or have any other concerns, please contact a member of our conference staff—they can be identified as they’ll be wearing branded clothing and/or badges.

Conference staff will be happy to help participants contact hotel/venue security or local law enforcement, provide escorts, or otherwise assist those experiencing harassment to feel safe for the duration of the conference. We value your attendance.

We expect participants to follow these rules at conference and workshop venues and conference-related social events.

By taking part in the Dotnetos Conference you grant the event organisers full rights to use the images resulting from the photography or video filming. This might include the right to use them in printed and online publicity and social media. If you do not wish to be photographed please inform us.


Event is supported by easily recognizable companies and products which we use everyday.

Gold sponsors:

Silver sponsors:



location icon

Digital Knowledge Village
Puławska 457
Warsaw, Poland, 02-844

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