1-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 2-- 3-- This program is free software; you can redistribute it and/or modify 4-- it under the terms of the GNU General Public License as published by 5-- the Free Software Foundation; version 2 of the License. 6-- 7-- This program is distributed in the hope that it will be useful, 8-- but WITHOUT ANY WARRANTY; without even the implied warranty of 9-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10-- GNU General Public License for more details. 11-- 12-- You should have received a copy of the GNU General Public License 13-- along with this program; if not, write to the Free Software 14-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 15 16-- 17-- View: innodb_buffer_stats_by_table 18-- 19-- Summarizes the output of the INFORMATION_SCHEMA.INNODB_BUFFER_PAGE 20-- table, aggregating by schema and table name 21-- 22-- mysql> select * from innodb_buffer_stats_by_table; 23-- +--------------------------+------------------------------------+------------+-----------+-------+--------------+-----------+-------------+ 24-- | object_schema | object_name | allocated | data | pages | pages_hashed | pages_old | rows_cached | 25-- +--------------------------+------------------------------------+------------+-----------+-------+--------------+-----------+-------------+ 26-- | InnoDB System | SYS_COLUMNS | 128.00 KiB | 98.97 KiB | 8 | 8 | 8 | 1532 | 27-- | InnoDB System | SYS_FOREIGN | 128.00 KiB | 55.48 KiB | 8 | 8 | 8 | 172 | 28-- | InnoDB System | SYS_TABLES | 128.00 KiB | 56.18 KiB | 8 | 8 | 8 | 365 | 29-- | InnoDB System | SYS_INDEXES | 112.00 KiB | 76.16 KiB | 7 | 7 | 7 | 1046 | 30-- | mem30_trunk__instruments | agentlatencytime | 96.00 KiB | 28.83 KiB | 6 | 6 | 6 | 252 | 31-- | mem30_trunk__instruments | binlogspaceusagedata | 96.00 KiB | 22.54 KiB | 6 | 6 | 6 | 196 | 32-- | mem30_trunk__instruments | connectionsdata | 96.00 KiB | 36.68 KiB | 6 | 6 | 6 | 276 | 33-- ... 34-- +--------------------------+------------------------------------+------------+-----------+-------+--------------+-----------+-------------+ 35-- 36 37CREATE OR REPLACE 38 ALGORITHM = TEMPTABLE 39 DEFINER = 'root'@'localhost' 40 SQL SECURITY INVOKER 41VIEW innodb_buffer_stats_by_table ( 42 object_schema, 43 object_name, 44 allocated, 45 data, 46 pages, 47 pages_hashed, 48 pages_old, 49 rows_cached 50) AS 51SELECT IF(LOCATE('.', ibp.table_name) = 0, 'InnoDB System', REPLACE(SUBSTRING_INDEX(ibp.table_name, '.', 1), '`', '')) AS object_schema, 52 REPLACE(SUBSTRING_INDEX(ibp.table_name, '.', -1), '`', '') AS object_name, 53 sys.format_bytes(SUM(IF(ibp.compressed_size = 0, 16384, compressed_size))) AS allocated, 54 sys.format_bytes(SUM(ibp.data_size)) AS data, 55 COUNT(ibp.page_number) AS pages, 56 COUNT(IF(ibp.is_hashed = 'YES', 1, 0)) AS pages_hashed, 57 COUNT(IF(ibp.is_old = 'YES', 1, 0)) AS pages_old, 58 ROUND(SUM(ibp.number_records)/COUNT(DISTINCT ibp.index_name)) AS rows_cached 59 FROM information_schema.innodb_buffer_page ibp 60 WHERE table_name IS NOT NULL 61 GROUP BY object_schema, object_name 62 ORDER BY SUM(IF(ibp.compressed_size = 0, 16384, compressed_size)) DESC; 63