Improving Lakebase Postgres Compute Cache
Databricks, Thursday, September 10th, 2026
Engineering detail on caching improvements in the disaggregated storage model behind Lakebase Postgres.
This engineering post covers caching improvements in Lakebase Postgres, whose disaggregated storage model provides flexibility at the cost of a latency penalty that caching must offset.
The article details how the compute cache was improved and what workload characteristics determine whether the gains materialize. Disaggregated storage is increasingly common across managed database services, so the trade-offs described apply well beyond this product.
Teams evaluating cloud Postgres variants will find the discussion of when disaggregation hurts more useful than the vendor benchmark.