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-- Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; version 2 of the License.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--
-- View: schema_table_statistics_with_buffer
--
-- Statistics around tables.
--
-- Ordered by the total wait time descending - top tables are most contended.
--
-- More statistics such as caching stats for the InnoDB buffer pool with InnoDB tables
--
-- mysql> select * from schema_table_statistics_with_buffer limit 1\G
-- *************************** 1. row ***************************
-- table_schema: mem
-- table_name: mysqlserver
-- rows_fetched: 27087
-- fetch_latency: 442.72 ms
-- rows_inserted: 2
-- insert_latency: 185.04 us
-- rows_updated: 5096
-- update_latency: 1.39 s
-- rows_deleted: 0
-- delete_latency: 0 ps
-- io_read_requests: 2565
-- io_read_bytes: 1121627
-- io_read_latency: 10.07 ms
-- io_write_requests: 1691
-- io_write_bytes: 128383
-- io_write_latency: 14.17 ms
-- io_misc_requests: 2698
-- io_misc_latency: 433.66 ms
-- innodb_buffer_pages: 19
-- innodb_buffer_pages_hashed: 19
-- innodb_buffer_pages_old: 19
-- innodb_buffer_bytes_allocated: 311296
-- innodb_buffer_bytes_data: 1924
-- innodb_buffer_rows_cached: 2
--
DELIMITER $$
BEGIN NOT ATOMIC
DECLARE EXIT HANDLER FOR SQLEXCEPTION BEGIN END;
CREATE OR REPLACE
ALGORITHM = TEMPTABLE
DEFINER = 'mariadb.sys'@'localhost'
SQL SECURITY INVOKER
VIEW schema_table_statistics_with_buffer (
table_schema,
table_name,
rows_fetched,
fetch_latency,
rows_inserted,
insert_latency,
rows_updated,
update_latency,
rows_deleted,
delete_latency,
io_read_requests,
io_read,
io_read_latency,
io_write_requests,
io_write,
io_write_latency,
io_misc_requests,
io_misc_latency,
innodb_buffer_allocated,
innodb_buffer_data,
innodb_buffer_free,
innodb_buffer_pages,
innodb_buffer_pages_hashed,
innodb_buffer_pages_old,
innodb_buffer_rows_cached
) AS
SELECT pst.object_schema AS table_schema,
pst.object_name AS table_name,
pst.count_fetch AS rows_fetched,
format_pico_time(pst.sum_timer_fetch) AS fetch_latency,
pst.count_insert AS rows_inserted,
format_pico_time(pst.sum_timer_insert) AS insert_latency,
pst.count_update AS rows_updated,
format_pico_time(pst.sum_timer_update) AS update_latency,
pst.count_delete AS rows_deleted,
format_pico_time(pst.sum_timer_delete) AS delete_latency,
fsbi.count_read AS io_read_requests,
format_bytes(fsbi.sum_number_of_bytes_read) AS io_read,
format_pico_time(fsbi.sum_timer_read) AS io_read_latency,
fsbi.count_write AS io_write_requests,
format_bytes(fsbi.sum_number_of_bytes_write) AS io_write,
format_pico_time(fsbi.sum_timer_write) AS io_write_latency,
fsbi.count_misc AS io_misc_requests,
format_pico_time(fsbi.sum_timer_misc) AS io_misc_latency,
format_bytes(ibp.allocated) AS innodb_buffer_allocated,
format_bytes(ibp.data) AS innodb_buffer_data,
format_bytes(ibp.allocated - ibp.data) AS innodb_buffer_free,
ibp.pages AS innodb_buffer_pages,
ibp.pages_hashed AS innodb_buffer_pages_hashed,
ibp.pages_old AS innodb_buffer_pages_old,
ibp.rows_cached AS innodb_buffer_rows_cached
FROM performance_schema.table_io_waits_summary_by_table AS pst
LEFT JOIN x$ps_schema_table_statistics_io AS fsbi
ON pst.object_schema = fsbi.table_schema
AND pst.object_name = fsbi.table_name
LEFT JOIN sys.x$innodb_buffer_stats_by_table AS ibp
ON pst.object_schema = ibp.object_schema
AND pst.object_name = ibp.object_name
ORDER BY pst.sum_timer_wait DESC;
END$$
DELIMITER ;
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