Reducing replication lag with IO concurrency in Postgres 15
The Citus Data
NOVEMBER 10, 2022
In this blog post, you’ll learn how recovery prefetching minimises I/O stalls and reduces replication lag in PostgreSQL 15—as well as how this work fits into a larger set of proposals to move PostgreSQL from traditional UNIX style I/O to efficient modern I/O APIs in the future. It doesn’t yet work on other operating systems.
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