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/* Copyright (c) 2014, 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: waits_global_by_latency
*
* Lists the top wait events by their total latency, ignoring idle (this may be very large).
*
* mysql> select * from waits_global_by_latency limit 5;
* +--------------------------------------+------------+---------------+-------------+-------------+
* | event | total | total_latency | avg_latency | max_latency |
* +--------------------------------------+------------+---------------+-------------+-------------+
* | wait/io/file/myisam/dfile | 3623719744 | 00:47:49.09 | 791.70 ns | 312.96 ms |
* | wait/io/table/sql/handler | 69114944 | 00:44:30.74 | 38.64 us | 879.49 ms |
* | wait/io/file/innodb/innodb_log_file | 28100261 | 00:37:42.12 | 80.50 us | 476.00 ms |
* | wait/io/socket/sql/client_connection | 200704863 | 00:18:37.81 | 5.57 us | 1.27 s |
* | wait/io/file/innodb/innodb_data_file | 2829403 | 00:08:12.89 | 174.20 us | 455.22 ms |
* +--------------------------------------+------------+---------------+-------------+-------------+
*
*/
CREATE OR REPLACE
ALGORITHM = MERGE
DEFINER = 'root'@'localhost'
SQL SECURITY INVOKER
VIEW waits_global_by_latency (
events,
total,
total_latency,
avg_latency,
max_latency
) AS
SELECT event_name AS event,
count_star AS total,
sys.format_time(sum_timer_wait) AS total_latency,
sys.format_time(avg_timer_wait) AS avg_latency,
sys.format_time(max_timer_wait) AS max_latency
FROM performance_schema.events_waits_summary_global_by_event_name
WHERE event_name != 'idle'
AND sum_timer_wait > 0
ORDER BY sum_timer_wait DESC;
/*
* View: x$waits_global_by_latency
*
* Lists the top wait events by their total latency, ignoring idle (this may be very large).
*
* mysql> select * from x$waits_global_by_latency limit 5;
* +--------------------------------------+-------+---------------+-------------+--------------+
* | event | total | total_latency | avg_latency | max_latency |
* +--------------------------------------+-------+---------------+-------------+--------------+
* | wait/io/file/sql/file_parser | 679 | 3536136351540 | 5207858773 | 129860439800 |
* | wait/io/file/innodb/innodb_data_file | 195 | 848170566100 | 4349592637 | 350700491310 |
* | wait/io/file/sql/FRM | 1355 | 400428476500 | 295518990 | 44823120940 |
* | wait/io/file/innodb/innodb_log_file | 20 | 54298899070 | 2714944765 | 30108124800 |
* | wait/io/file/mysys/charset | 3 | 24244722970 | 8081574072 | 24151547420 |
* +--------------------------------------+-------+---------------+-------------+--------------+
*
*/
CREATE OR REPLACE
ALGORITHM = MERGE
DEFINER = 'root'@'localhost'
SQL SECURITY INVOKER
VIEW x$waits_global_by_latency (
events,
total,
total_latency,
avg_latency,
max_latency
) AS
SELECT event_name AS event,
count_star AS total,
sum_timer_wait AS total_latency,
avg_timer_wait AS avg_latency,
max_timer_wait AS max_latency
FROM performance_schema.events_waits_summary_global_by_event_name
WHERE event_name != 'idle'
AND sum_timer_wait > 0
ORDER BY sum_timer_wait DESC;
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