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https://dev.mysql.com/doc/refman/8.0/en/optimize-overview.html
Database performance depends on several factors at the database level, such as tables, queries, and configuration settings. These software constructs result in CPU and I/O operations at the hardware level, which you must minimize and make as ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-logging.html
Consider the following guidelines for optimizing redo logging: Increase the size of your redo log files. When InnoDB has written redo log files full, it must write the modified contents of the buffer pool to disk in a checkpoint. From MySQL 8.0.30, ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-limitations-functions.html
This section discusses limitations in MySQL Partitioning relating specifically to functions used in partitioning expressions. Each of these functions returns an integer only if it is passed an argument of an exact numeric type, such as one of the ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-linear-hash.html
MySQL also supports linear hashing, which differs from regular hashing in that linear hashing utilizes a linear powers-of-two algorithm whereas regular hashing employs the modulus of the hashing function's value. We call this value V; it can be ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-management.html
There are a number of ways using SQL statements to modify partitioned tables; it is possible to add, drop, redefine, merge, or split existing partitions using the partitioning extensions to the ALTER TABLE statement. There are also ways to obtain ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-pruning.html
The optimization known as partition pruning is based on a relatively simple concept which can be described as “Do not scan partitions where there can be no matching values”. By limiting the search, it is possible to expend much less time and ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-selection.html
Explicit selection of partitions and subpartitions for rows matching a given WHERE condition is supported. Partition selection is similar to partition pruning, in that only specific partitions are checked for matches, but differs in two key ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-component-scheduler-tasks-table.html
The component_scheduler_tasks table contains a row for each scheduled task. Each row contains information about the ongoing progress of a task that applications, components, and plugins can implement, optionally, using the scheduler component (see ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-stages-current-table.html
The table stores one row per thread showing the current status of the thread's most recent monitored stage event, so there is no system variable for configuring the table size. Of the tables that contain stage event rows, events_stages_current is ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-events-statements-current-table.html
The table stores one row per thread showing the current status of the thread's most recent monitored statement event, so there is no system variable for configuring the table size. Of the tables that contain statement event rows, ...