# Improving Lakebase Postgres compute cache

DevFeed: [Improving Lakebase Postgres compute cache](<https://devfeed.tech/articles/improving-lakebase-postgres-compute-cache-11541.md>)

Original publisher: [Read original article](<https://www.databricks.com/blog/improving-lakebase-postgres-compute-cache>)

Author: David Wein; Sunil Kamath; Haoyu Huang

Published: 2026-09-10T13:47:03Z

Content type: article

Language: en

Sources: [Databricks](<https://devfeed.tech/sources/databricks.md>)

Topics: [Caching](<https://devfeed.tech/topics/caching.md>), [databricks](<https://devfeed.tech/topics/databricks.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [autoscaling](<https://devfeed.tech/topics/autoscaling.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [Filesystems](<https://devfeed.tech/topics/filesystems.md>), [cloud-infrastructure](<https://devfeed.tech/topics/cloud-infrastructure.md>)

Tags: [autoscaling](<https://devfeed.tech/tags/autoscaling.md>), [cache](<https://devfeed.tech/tags/cache.md>), [caching](<https://devfeed.tech/tags/caching.md>), [data](<https://devfeed.tech/tags/data.md>), [data-engineering](<https://devfeed.tech/tags/data-engineering.md>), [databricks](<https://devfeed.tech/tags/databricks.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [filesystem](<https://devfeed.tech/tags/filesystem.md>), [latency](<https://devfeed.tech/tags/latency.md>), [low-latency](<https://devfeed.tech/tags/low-latency.md>), [memory](<https://devfeed.tech/tags/memory.md>), [s3](<https://devfeed.tech/tags/s3.md>), [storage](<https://devfeed.tech/tags/storage.md>)

## AI overview

This Databricks article describes improvements to compute-side caching for Lakebase Postgres, a disaggregated storage system backed by object storage such as Amazon S3. It explains PostgreSQL shared buffers, the operating system page cache, and the planned use of dynamically autoscaling shared buffers consuming up to 75% of compute memory. It also introduces a local file cache as an incremental solution for fixed compute instances.

## Source excerpt

The disaggregated storage model of Lakebase Postgres provides a feature rich, flexible...