Buffer Pool on FromDual GmbH

How to force InnoDB Buffer Pool flushing

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 10 Dec 2020 17:38:36 +0000

InnoDB tries to keep pages in Buffer Pool to be fast. If a page is changed by a DML statement (INSERT, UPDATE, DELETE) this change will be done in InnoDB Buffer Pool and not directly on disk. But those changed InnoDB pages residing in InnoDB Buffer Pool must be flushed sooner or later to disk to become persistent. This is done by the InnoDB background writer thread(s) (default 4).

Understanding InnoDB - Buffer Pool Flushing

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 08 Apr 2019 20:31:56 +0000

InnoDB Page Cleaner Thread

The InnoDB Page Cleaner Thread is an InnoDB background thread that flushes dirty pages from the InnoDB Buffer Pool to disk. Prior MySQL 5.6 this action was performed by the InnoDB Master Thread.

InnoDB Buffer Pool Instances is too small

oli.sennhauser@fromdual.com (Oli Sennhauser) — Thu, 16 Jul 2015 20:09:36 +0000

If you are using MariaDB/MySQL 5.5 and newer you should use several InnoDB Buffer Pool Instances for performance reasons.
Some rules to size InnoDB Buffer Pool instances are:

Warming up the InnoDB Buffer Pool during start-up

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 22 Jul 2011 17:12:51 +0000

Abstract: Heating up the InnoDB Buffer Pool during the MySQL instance startup should significantly improve InnoDB Performance in the beginning of the life of the Instance. This is achieved by sequential scans of the needed data instead of random I/O reads which would happen when we just let the system work it out by itself.
How to find the database objects which can be loaded during MySQL start-up and how to load them automatically is described in this article.

MariaDB has broken the concept of dynamically configurable buffer pools!

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 09 Feb 2026 19:14:00 +0100

Problem description

MySQL introduced the dynamically configurable InnoDB buffer pool with 5.7.5 in September 2014 (here and here):