33 docs tagged with "beginner"

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Benchmarking is a huge topic. Here, we cover minimal steps that are required for a Postgres benchmark to be informative,

Identify and handle long-running transactions that can impact OLTP system performance

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Some very popular reasons affecting the duration of the shutdown attempt:

or:

Today we'll discuss how to understand what exactly a Postgres backend is doing inside CPU on a Linux machine (in-CPU analysis).

Understand subtransactions, savepoints, and their impact on database performance

Two branches of query optimization

Today, we'll discuss tuples and their locations in pages – this is quite entry-level material but useful in many cases.