Presented by:

B94a7d47b13352782b755c39e53a3a4d

Nikhil Sontakke

from Microsoft

Nikhil is a Principal Engineer at Microsoft. He has been a PostgreSQL community member for over 10+ years now. He's submitted patches for features and bug fixes in various PostgreSQL releases.

At Microsoft, he is focusing on the distributed next generation cloud native serverless PostgreSQL offering for Azure Cloud.

No video of the event yet, sorry!

PostgreSQL’s Free Space Map (FSM) is a critical internal structure that helps the database efficiently manage and reuse space within tables, directly impacting performance and storage utilization. In this talk, we’ll demystify how FSM works, explore its role in common operations like inserts, updates, and VACUUM, and discuss practical strategies for monitoring and tuning FSM for real-world workloads. Attendees will gain a deep understanding of FSM internals, troubleshooting tips, and actionable insights to optimize their PostgreSQL deployments.

Date:
Duration:
45 min
Room:
Conference:
PGConf India, 2026
Language:
Track:
Database Engine Developers
Difficulty:
Hard