diff options
Diffstat (limited to 'scripts/sys_schema/views/p_s/x_user_summary_by_file_io_type.sql')
| -rw-r--r-- | scripts/sys_schema/views/p_s/x_user_summary_by_file_io_type.sql | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/scripts/sys_schema/views/p_s/x_user_summary_by_file_io_type.sql b/scripts/sys_schema/views/p_s/x_user_summary_by_file_io_type.sql new file mode 100644 index 00000000..6705ae97 --- /dev/null +++ b/scripts/sys_schema/views/p_s/x_user_summary_by_file_io_type.sql @@ -0,0 +1,66 @@ +-- 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: x$user_summary_by_file_io_type +-- +-- Summarizes file IO by event type per user. +-- +-- When the user found is NULL, it is assumed to be a "background" thread. +-- +-- mysql> select * from x$user_summary_by_file_io_type; +-- +------------+--------------------------------------+-------+---------------+--------------+ +-- | user | event_name | total | latency | max_latency | +-- +------------+--------------------------------------+-------+---------------+--------------+ +-- | background | wait/io/file/sql/FRM | 871 | 168148450470 | 18482624810 | +-- | background | wait/io/file/innodb/innodb_data_file | 173 | 129564287450 | 34087423890 | +-- | background | wait/io/file/innodb/innodb_log_file | 20 | 77525706960 | 60657475320 | +-- | background | wait/io/file/myisam/dfile | 40 | 6544493800 | 4580546230 | +-- | background | wait/io/file/mysys/charset | 3 | 4793558770 | 4713476430 | +-- | background | wait/io/file/myisam/kfile | 67 | 4384332810 | 300035450 | +-- | background | wait/io/file/sql/ERRMSG | 5 | 2717434850 | 1687316280 | +-- | background | wait/io/file/sql/pid | 3 | 266301490 | 185468920 | +-- | background | wait/io/file/sql/casetest | 5 | 246814360 | 150193030 | +-- | background | wait/io/file/sql/global_ddl_log | 2 | 21236410 | 18593640 | +-- | root | wait/io/file/sql/file_parser | 1422 | 4801104756760 | 135138518970 | +-- | root | wait/io/file/sql/FRM | 865 | 85818594810 | 9812303410 | +-- | root | wait/io/file/myisam/kfile | 1073 | 37143664870 | 15793838190 | +-- | root | wait/io/file/myisam/dfile | 2991 | 25528215700 | 5252232050 | +-- | root | wait/io/file/sql/dbopt | 20 | 1067339780 | 153073310 | +-- | root | wait/io/file/sql/misc | 4 | 59713030 | 33752810 | +-- | root | wait/io/file/archive/data | 1 | 13907530 | 13907530 | +-- +------------+--------------------------------------+-------+---------------+--------------+ +-- + +CREATE OR REPLACE + ALGORITHM = MERGE + DEFINER = 'mariadb.sys'@'localhost' + SQL SECURITY INVOKER +VIEW x$user_summary_by_file_io_type ( + user, + event_name, + total, + latency, + max_latency +) AS +SELECT IF(user IS NULL, 'background', user) AS user, + event_name, + count_star AS total, + sum_timer_wait AS latency, + max_timer_wait AS max_latency + FROM performance_schema.events_waits_summary_by_user_by_event_name + WHERE event_name LIKE 'wait/io/file%' + AND count_star > 0 + ORDER BY user, sum_timer_wait DESC; |