Created
March 9, 2014 19:52
-
-
Save toddsiegel/9453514 to your computer and use it in GitHub Desktop.
Queries To Help with Tuning MySQL
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
-- Determine size of databases | |
-- Source: http://stackoverflow.com/questions/1733507/how-to-get-size-of-mysql-database | |
SELECT table_schema "DB Name", Round(Sum(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB" | |
FROM information_schema.tables | |
GROUP BY table_schema; | |
-- Size in MB of the innodb_buffer_pool_size. Default is 128 MB. | |
-- More here: http://dev.mysql.com/doc/refman/5.5/en/innodb-parameters.html#sysvar_innodb_buffer_pool_size | |
SELECT @@innodb_buffer_pool_size / 1024 / 1024 | |
-- Actual pages of InnoDB data reside in the InnoDB Buffer Pool.\ | |
-- Source: http://dba.stackexchange.com/questions/27328/how-large-should-be-mysql-innodb-buffer-pool-size | |
SELECT (PagesData*PageSize)/POWER(1024,3) DataGB FROM | |
(SELECT variable_value PagesData | |
FROM information_schema.global_status | |
WHERE variable_name='Innodb_buffer_pool_pages_data') A, | |
(SELECT variable_value PageSize | |
FROM information_schema.global_status | |
WHERE variable_name='Innodb_page_size') B; | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment