-- 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: statements_with_runtimes_in_95th_percentile -- -- List all statements who's average runtime, in microseconds, is in the top 95th percentile. -- -- mysql> select * from statements_with_runtimes_in_95th_percentile limit 5; -- +-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+ -- | query | db | full_scan | exec_count | err_count | warn_count | total_latency | max_latency | avg_latency | rows_sent | rows_sent_avg | rows_examined | rows_examined_avg | FIRST_SEEN | LAST_SEEN | digest | -- +-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+ -- | SELECT `e` . `round_robin_bin` ... `timestamp` = `maxes` . `ts` | mem | * | 14 | 0 | 0 | 43.96 s | 6.69 s | 3.14 s | 11 | 1 | 253170 | 18084 | 2013-12-04 20:05:01 | 2013-12-04 20:06:34 | 29ba002bf039bb6439357a10134407de | -- | SELECT `e` . `round_robin_bin` ... `timestamp` = `maxes` . `ts` | mem | * | 8 | 0 | 0 | 17.89 s | 4.12 s | 2.24 s | 7 | 1 | 169534 | 21192 | 2013-12-04 20:04:54 | 2013-12-04 20:05:05 | 0b1c1f91e7e9e0ff91aa49d15f540793 | -- | SELECT `e` . `round_robin_bin` ... `timestamp` = `maxes` . `ts` | mem | * | 1 | 0 | 0 | 2.22 s | 2.22 s | 2.22 s | 1 | 1 | 40322 | 40322 | 2013-12-04 20:05:39 | 2013-12-04 20:05:39 | 07b27145c8f8a3779737df5032374833 | -- | SELECT `e` . `round_robin_bin` ... `timestamp` = `maxes` . `ts` | mem | * | 1 | 0 | 0 | 1.97 s | 1.97 s | 1.97 s | 1 | 1 | 40322 | 40322 | 2013-12-04 20:05:39 | 2013-12-04 20:05:39 | a07488137ea5c1bccf3e291c50bfd21f | -- | SELECT `e` . `round_robin_bin` ... `timestamp` = `maxes` . `ts` | mem | * | 2 | 0 | 0 | 3.91 s | 3.91 s | 1.96 s | 1 | 1 | 13126 | 6563 | 2013-12-04 20:05:04 | 2013-12-04 20:06:34 | b8bddc6566366dafc7e474f67096a93b | -- +-------------------------------------------------------------------+------+-----------+------------+-----------+------------+---------------+-------------+-------------+-----------+---------------+---------------+-------------------+---------------------+---------------------+----------------------------------+ -- CREATE OR REPLACE ALGORITHM = MERGE DEFINER = 'root'@'localhost' SQL SECURITY INVOKER VIEW statements_with_runtimes_in_95th_percentile ( query, db, full_scan, exec_count, err_count, warn_count, total_latency, max_latency, avg_latency, rows_sent, rows_sent_avg, rows_examined, rows_examined_avg, first_seen, last_seen, digest ) AS SELECT sys.format_statement(DIGEST_TEXT) AS query, SCHEMA_NAME as db, IF(SUM_NO_GOOD_INDEX_USED > 0 OR SUM_NO_INDEX_USED > 0, '*', '') AS full_scan, COUNT_STAR AS exec_count, SUM_ERRORS AS err_count, SUM_WARNINGS AS warn_count, sys.format_time(SUM_TIMER_WAIT) AS total_latency, sys.format_time(MAX_TIMER_WAIT) AS max_latency, sys.format_time(AVG_TIMER_WAIT) AS avg_latency, SUM_ROWS_SENT AS rows_sent, ROUND(IFNULL(SUM_ROWS_SENT / NULLIF(COUNT_STAR, 0), 0)) AS rows_sent_avg, SUM_ROWS_EXAMINED AS rows_examined, ROUND(IFNULL(SUM_ROWS_EXAMINED / NULLIF(COUNT_STAR, 0), 0)) AS rows_examined_avg, FIRST_SEEN AS first_seen, LAST_SEEN AS last_seen, DIGEST AS digest FROM performance_schema.events_statements_summary_by_digest stmts JOIN sys.x$ps_digest_95th_percentile_by_avg_us AS top_percentile ON ROUND(stmts.avg_timer_wait/1000000) >= top_percentile.avg_us ORDER BY AVG_TIMER_WAIT DESC;