--- title: "Modelling Postgres Performance Degradation on Burstable Cloud Instances | POSETTE 2026" url: https://daily.dev/posts/modelling-postgres-performance-degradation-on-burstable-cloud-instances-posette-2026-nnqgsmhs3 source_url: https://www.youtube.com/watch?v=71c7WLUjT3E type: video:youtube source: "Microsoft Developer" published: 2026-06-18T14:46:29.177Z updated: 2026-06-18T14:46:58.129Z tags: ["postgresql"] reading_time: 24 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Modelling Postgres Performance Degradation on Burstable Cloud Instances | POSETTE 2026 **[Microsoft Developer](https://daily.dev/sources/microsoftdeveloper)** · 24 min read · 0 upvotes · 0 comments ## Summary A talk from POSETTE 2026 demonstrating how discrete event simulation (DES) can be used to model PostgreSQL performance degradation on burstable cloud instances (Azure B-series, AWS T-series) before actual deployment. The speaker explains the token bucket algorithm behind CPU credits, the death spiral that occurs when credits deplete, and how DES can predict failure points and optimal connection pool sizes in under a minute — replacing days-long load tests. An open-source C# library called SNA is used to model CPU credit mechanics and M/M/c/K queuing behavior, with OpenTelemetry integration for Grafana dashboards. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#postgresql](https://daily.dev/tags/postgresql) [View this post on daily.dev](https://daily.dev/posts/modelling-postgres-performance-degradation-on-burstable-cloud-instances-posette-2026-nnqgsmhs3)