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# In-depth .NET Azure Functions: Flex plan, Isolated mode and performance


- **Date:** Thursday, Jul 10, 2025
- **Time:** 16:10–16:40 (30 min)
- **Room:** Stage 4
- **Event:** World Congress 2025
- **Tags:** azure, c#, .net, performance, serverless

## Description

Azure functions are fun and still evolving fast, so this talk will bring you an in-depth review of the latest updates, including the FlexConsumption plan and the performance of functions in Isolated mode, along with considerations for choosing the right stack and service plan in 2025.

Key-topics
- Consumption plan pros and cons with performance analysis and load testing results of .NET functions
- Isolated process nuances and challenges compared to in-process
- Optimizations for .NET Functions and AoT compilation 
- Evolution of Function apps through containerization and DAPR

Join this talk to learn about the nitty-gritty details of building advanced Azure Functions apps, see a lot of code, and encounter possible issues. 

## Speaker

### [Stanislav Lebedenko](https://www.wearedevelopers.com/@stanislav-lebedenko)

Microsoft AI & Azure MVP | Cloud Architect | Developer


## Related talks at this congress

- [Blazor Unleashed: The Future of .NET Web Development](https://www.wearedevelopers.com/events/world-congress-2025/sessions/716-blazor-unleashed-the) — Christian Giesswein
- [Azure-Well Architected Framework - designing mission critical workloads in practice](https://www.wearedevelopers.com/events/world-congress-2025/sessions/622-azure-well) — Paweł Siwek
- [Building Multi-Tenant ASP.NET Core Applications: Best Practices and Real-World Solutions](https://www.wearedevelopers.com/events/world-congress-2025/sessions/758-building-multi) — Alper Ebicoglu
- [Scaling LLM Applications on Arm: Optimize for Performance and Cost in the Cloud](https://www.wearedevelopers.com/events/world-congress-2025/sessions/508-scaling-llm) — Avin Zarlez