Personal blog about software development: .NET, Python, performance and architecture.https://rafaelpadovezi.dev/https://rafaelpadovezi.dev/en/my-journey-optimizing-a-django-application/https://rafaelpadovezi.dev/en/my-journey-optimizing-a-django-application/My experience in the Rinha de Backend 2024 Q1 challenge: optimizing a Django + gunicorn API under CPU and memory limits, with gevent, py-spy profiling and connection tuning.Wed, 13 Mar 2024 00:00:00 GMThttps://rafaelpadovezi.dev/en/diagnostics-using-dotnet-monitor-prometheus-grafana/https://rafaelpadovezi.dev/en/diagnostics-using-dotnet-monitor-prometheus-grafana/How to use dotnet-monitor to collect diagnostic metrics from .NET applications and visualize them with prometheus and grafana in a docker compose lab.Wed, 03 Jan 2024 00:00:00 GMThttps://rafaelpadovezi.dev/en/threadpool-in-aspnet-and-performance-issues/https://rafaelpadovezi.dev/en/threadpool-in-aspnet-and-performance-issues/What threadpool starvation is in IO bound ASP.NET applications, how to diagnose it with dotnet-counters, and how async/await reuses threads to increase throughput.Mon, 04 Sep 2023 00:00:00 GMThttps://rafaelpadovezi.dev/en/data-consistency-and-the-outbox-pattern/https://rafaelpadovezi.dev/en/data-consistency-and-the-outbox-pattern/Guaranteeing data consistency in distributed systems is a big challenge. See how the Outbox pattern and idempotency solve the dual write problem.Sat, 13 May 2023 00:00:00 GMThttps://rafaelpadovezi.dev/en/input-validation-and-error-responses-in-aspnet/https://rafaelpadovezi.dev/en/input-validation-and-error-responses-in-aspnet/How to implement input validation in ASP.NET with DataAnnotations, ModelState and ApiController, and how to customize the error response format.Wed, 18 Aug 2021 00:00:00 GMThttps://rafaelpadovezi.dev/en/savechanges-and-transaction-control-in-ef-core/https://rafaelpadovezi.dev/en/savechanges-and-transaction-control-in-ef-core/How EF Core's SaveChanges controls transactions under the hood: logs, savepoints, and the difference between nested transactions and savepoints in SQL Server.Mon, 01 Mar 2021 00:00:00 GMT