Oracle 5.0 Reference Manual page 546

•
Handler_rollback
The number of requests for a storage engine to perform a rollback operation.
•
Handler_savepoint
The number of requests for a storage engine to place a savepoint. Added in MySQL 5.0.3.
•
Handler_savepoint_rollback
The number of requests for a storage engine to roll back to a savepoint. Added in MySQL 5.0.3.
• [526]
Handler_update
The number of requests to update a row in a table.
• [526]
Handler_write
The number of requests to insert a row in a table.
•
Innodb_buffer_pool_pages_data
The number of pages containing data (dirty or clean). Added in MySQL 5.0.2.
•
Innodb_buffer_pool_pages_dirty
The number of pages currently dirty. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_pages_flushed
The number of buffer pool page-flush requests. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_pages_free
The number of free pages. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_pages_latched
The number of latched pages in
or that cannot be flushed or removed for some other reason. Added in MySQL 5.0.2. Calculation of
this variable is expensive, so as of MySQL 5.0.68, it is available only when the
is defined at server build time.
•
Innodb_buffer_pool_pages_misc
The number of pages that are busy because they have been allocated for administrative
overhead such as row locks or the adaptive hash index. This value can also be calculated as
Innodb_buffer_pool_pages_total
Innodb_buffer_pool_pages_data
•
Innodb_buffer_pool_pages_total
The total size of buffer pool, in pages. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_read_ahead_rnd
The number of "random" read-aheads initiated by InnoDB. This happens when a query scans a
large portion of a table but in random order. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_read_ahead_seq
The number of sequential read-aheads initiated by InnoDB. This happens when
sequential full table scan. Added in MySQL 5.0.2.
•
Innodb_buffer_pool_read_requests
Server Status Variables
[526]
[526]
[526]
[526]
[526]
[526]
[526]
[526]
buffer pool. These are pages currently being read or written
InnoDB
[526]
[526]
[526]. Added in MySQL 5.0.2.
[526]
[526]
526
–
Innodb_buffer_pool_pages_free
[526]
[526]
system
UNIV_DEBUG
[526] –
does a
InnoDB