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show databases;
Database
information_schema
mtr
mysql
performance_schema
test
select count(*) from performance_schema.performance_timers;
count(*)
5
select count(*) from performance_schema.setup_consumers;
count(*)
12
select count(*) > 3 from performance_schema.setup_instruments;
count(*) > 3
1
select count(*) from performance_schema.setup_timers;
count(*)
4
show engine PERFORMANCE_SCHEMA status;
show status like "performance_schema%";
select * from performance_schema.setup_instruments
where name like "statement/%" and enabled='YES';
NAME ENABLED TIMED
select * from performance_schema.events_statements_summary_global_by_event_name
where count_star > 0;
EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT SUM_LOCK_TIME SUM_ERRORS SUM_WARNINGS SUM_ROWS_AFFECTED SUM_ROWS_SENT SUM_ROWS_EXAMINED SUM_CREATED_TMP_DISK_TABLES SUM_CREATED_TMP_TABLES SUM_SELECT_FULL_JOIN SUM_SELECT_FULL_RANGE_JOIN SUM_SELECT_RANGE SUM_SELECT_RANGE_CHECK SUM_SELECT_SCAN SUM_SORT_MERGE_PASSES SUM_SORT_RANGE SUM_SORT_ROWS SUM_SORT_SCAN SUM_NO_INDEX_USED SUM_NO_GOOD_INDEX_USED
select * from performance_schema.events_statements_summary_by_thread_by_event_name
where count_star > 0;
THREAD_ID EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT SUM_LOCK_TIME SUM_ERRORS SUM_WARNINGS SUM_ROWS_AFFECTED SUM_ROWS_SENT SUM_ROWS_EXAMINED SUM_CREATED_TMP_DISK_TABLES SUM_CREATED_TMP_TABLES SUM_SELECT_FULL_JOIN SUM_SELECT_FULL_RANGE_JOIN SUM_SELECT_RANGE SUM_SELECT_RANGE_CHECK SUM_SELECT_SCAN SUM_SORT_MERGE_PASSES SUM_SORT_RANGE SUM_SORT_ROWS SUM_SORT_SCAN SUM_NO_INDEX_USED SUM_NO_GOOD_INDEX_USED
select * from performance_schema.events_statements_summary_by_user_by_event_name
where count_star > 0;
USER EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT SUM_LOCK_TIME SUM_ERRORS SUM_WARNINGS SUM_ROWS_AFFECTED SUM_ROWS_SENT SUM_ROWS_EXAMINED SUM_CREATED_TMP_DISK_TABLES SUM_CREATED_TMP_TABLES SUM_SELECT_FULL_JOIN SUM_SELECT_FULL_RANGE_JOIN SUM_SELECT_RANGE SUM_SELECT_RANGE_CHECK SUM_SELECT_SCAN SUM_SORT_MERGE_PASSES SUM_SORT_RANGE SUM_SORT_ROWS SUM_SORT_SCAN SUM_NO_INDEX_USED SUM_NO_GOOD_INDEX_USED
select * from performance_schema.events_statements_summary_by_host_by_event_name
where count_star > 0;
HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT SUM_LOCK_TIME SUM_ERRORS SUM_WARNINGS SUM_ROWS_AFFECTED SUM_ROWS_SENT SUM_ROWS_EXAMINED SUM_CREATED_TMP_DISK_TABLES SUM_CREATED_TMP_TABLES SUM_SELECT_FULL_JOIN SUM_SELECT_FULL_RANGE_JOIN SUM_SELECT_RANGE SUM_SELECT_RANGE_CHECK SUM_SELECT_SCAN SUM_SORT_MERGE_PASSES SUM_SORT_RANGE SUM_SORT_ROWS SUM_SORT_SCAN SUM_NO_INDEX_USED SUM_NO_GOOD_INDEX_USED
select * from performance_schema.events_statements_summary_by_account_by_event_name
where count_star > 0;
USER HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT SUM_LOCK_TIME SUM_ERRORS SUM_WARNINGS SUM_ROWS_AFFECTED SUM_ROWS_SENT SUM_ROWS_EXAMINED SUM_CREATED_TMP_DISK_TABLES SUM_CREATED_TMP_TABLES SUM_SELECT_FULL_JOIN SUM_SELECT_FULL_RANGE_JOIN SUM_SELECT_RANGE SUM_SELECT_RANGE_CHECK SUM_SELECT_SCAN SUM_SORT_MERGE_PASSES SUM_SORT_RANGE SUM_SORT_ROWS SUM_SORT_SCAN SUM_NO_INDEX_USED SUM_NO_GOOD_INDEX_USED
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