The storage engine contains a database called performance_schema, which in turn consists of a number of tables that can be queried with regular SQL statements, returning specific performance information. Description: Maximum number of rows in the performance_schema.accounts table. MySQL 5.5 saw the addition of the performance_schema and information_schema databases. What is the usage of performance_schema in MySQL 5.5? Using The MySQL Process Table. MySQL Commandline: --performance-schema-accounts-size=#. If you are using a Commercial release of MySQL 5.7, see the MySQL 5.7 Commercial Release License Information User Manual for licensing information, including licensing … MySQL Performance Schema MySQL Training/Zertifizierung. I know stats in performance schema are not persistent over MySQL restarts. (Adding the flag ‘statistics’ or ‘stat’ for short will show running statistics for queries since MySQL’s last restart.) The MySQL sys schema was integrated fully into MySQL Server from version 5.7.7 and has been improved in MySQL 8.0. The Performance Schema. The Performance Schema has these characteristics: The Performance Schema provides a way to inspect internal execution of the server at runtime.

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