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https://dev.mysql.com/doc/refman/8.4/en/performance-schema-accounts-table.html
The accounts table contains a row for each account that has connected to the MySQL server. For each account, the table counts the current and total number of connections. To set the table size explicitly, set the performance_schema_accounts_size ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-and-plugins.html
Removing a plugin with UNINSTALL PLUGIN does not affect information already collected for code in that plugin. Time spent executing the code while the plugin was loaded was still spent even if the plugin is unloaded later. The associated event ...
https://dev.mysql.com/doc/refman/8.4/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/8.4/en/performance-schema-connection-attribute-tables.html
Connection attributes are key-value pairs that application programs can pass to the server at connect time. For applications based on the C API implemented by the libmysqlclient client library, the mysql_options() and mysql_options4() functions ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-filtering-names.html
Names given for filtering operations can be as specific or general as required. For example, to select all file I/O instruments, it is better to use a pattern that includes the entire instrument name prefix: ... WHERE NAME LIKE 'wait/io/file/%'; A ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-firewall-group-allowlist-table.html
The firewall_group_allowlist table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_group_allowlist system table that provides persistent storage of firewall data; see ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-firewall-membership-table.html
The firewall_membership table provides a view into the in-memory data cache for MySQL Enterprise Firewall. It is used in conjunction with the mysql.firewall_membership system table that provides persistent storage of firewall data; see MySQL ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-firewall-tables.html
The following sections describe the Performance Schema tables associated with MySQL Enterprise Firewall (see Section 8.4.7, “MySQL Enterprise Firewall”). They provide information about firewall operation: firewall_groups: Information about ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-hosts-table.html
The hosts table contains a row for each host from which clients have connected to the MySQL server. For each host name, the table counts the current and total number of connections. To set the table size explicitly, set the ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-instance-tables.html
They provide event names and explanatory notes or status information: cond_instances: Condition synchronization object instances file_instances: File instances mutex_instances: Mutex synchronization object instances rwlock_instances: Lock ...