Abstract
Deterministic simulation testing finds bugs by exploring random execution paths, injecting failures, and letting you replay any failure with a single starting seed. This testing approach shakes out many difficult to find bugs before they reach production and greatly increases developer confidence in system correctness when making new changes.
This talk will take you on our DST journey at Polar Signals: how we implemented DST in our Go database using a WASM runtime, and why we chose a different approach when rewriting our database in Rust.
You'll walk away with:
- A framework for thinking about software determinism
- An overview of two practical DST approaches and their tradeoffs
- Ideas for implementing DST in your system
Speaker
Alfonso Subiotto
Software Engineer @Polar Signals
Alfonso is a software engineer with a deep focus on distributed systems and databases. After honing his skills on the SQL execution team at Cockroach Labs, he now contributes to the storage layer at Polar Signals, a continuous profiling solution. Alfonso’s current area of focus is ensuring correctness through deterministic simulation testing.
Find Alfonso Subiotto at:
Date
Monday Mar 16 / 10:35AM GMT ( 50 minutes )
Location
Windsor (5th Fl.)
