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https://dev.mysql.com/doc/refman/8.0/en/innodb-configuring-io-capacity.html
You can set the innodb_io_capacity value in the MySQL option file (my.cnf or my.ini) or modify it at runtime using a SET GLOBAL statement, which requires privileges sufficient to set global system variables. You can set the innodb_flush_sync value ... The InnoDB master thread and other threads perform various tasks in the background, most of which are I/O related, such as flushing dirty pages from the buffer pool and writing changes from the change buffer to the appropriate secondary ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-transactions.html
Note This section describes locking information as exposed by the Performance Schema data_locks and data_lock_waits tables, which supersede the INFORMATION_SCHEMA INNODB_LOCKS and INNODB_LOCK_WAITS tables in MySQL 8.0. For similar discussion ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema.html
You can view a list of InnoDB INFORMATION_SCHEMA tables by issuing a SHOW TABLES statement on the INFORMATION_SCHEMA database: mysql> SHOW TABLES FROM INFORMATION_SCHEMA LIKE 'INNODB%'; For table definitions, see Section 28.4, “INFORMATION_SCHEMA ... This section provides information and usage examples for InnoDB INFORMATION_SCHEMA ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-limits.html
If you reduce the InnoDB page size to 8KB or 4KB by specifying the innodb_page_size option when creating the MySQL instance, the maximum length of the index key is lowered proportionally, based on the limit of 3072 bytes for a 16KB page size. This ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-ddl.html
You can access the underlying InnoDB table (which is test.demo_test by default) through standard SQL interfaces. However, there are some restrictions: When querying a table that is also accessed through the memcached interface, remember that ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-developing.html
Typically, writing an application for the InnoDB memcached plugin involves some degree of rewriting or adapting existing code that uses MySQL or the memcached API. With the daemon_memcached plugin, instead of many traditional memcached servers ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-multiple-buffer-pools.html
Prior to MySQL 8.0, each buffer pool was protected by its own buffer pool mutex. In MySQL 8.0 and later, the buffer pool mutex was replaced by several list and hash protecting mutexes, to reduce contention. For systems with buffer pools in the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl.html
Note ALGORITHM=INSTANT support is available for ADD COLUMN and other operations in MySQL 8.0.12. By default, MySQL performs the operation instantly or in place, as permitted, with as little locking as possible. The online DDL feature provides ...
https://dev.mysql.com/doc/refman/8.0/en/json-function-reference.html
MySQL also supports “pretty-printing” of JSON values in an easy-to-read format, using the JSON_PRETTY() function. Table 14.22 JSON Functions Name Description Introduced Deprecated -> Return value from JSON column after evaluating path; ...
https://dev.mysql.com/doc/refman/8.0/en/literals.html
This section describes how to write literal values in MySQL. The section also covers various nuances that you may encounter when dealing with these basic types in MySQL. These include strings, numbers, hexadecimal and bit values, boolean values, ...