[MariaDB discuss] Re: InnoDB buffer pool usage drops regularly since 10.11.10 / 11.4.4

Hi William, Your finding could be explained by the fact that https://jira.mariadb.org/browse/MDEV-34753 was fixed in MariaDB Server 11.4.4. In the 11.4.4 server error log, do you see any messages like the following: [Note] InnoDB: Memory pressure event freed ... pages Best regards, Marko