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c9f612dbde
This was done to get more information about where time is spent. Now we can get proper timing for time spent in commit, rollback, binlog write etc. Following stages was added: - Commit - Commit_implicit - Rollback - Rollback implicit - Binlog write - Init for update - This is used instead of "Init" for insert, update and delete. - Staring cleanup Following stages where changed: - "Unlocking tables" stage reset stage to previous stage at end - "binlog write" stage resets stage to previous stage at end - "end" -> "end of update loop" - "cleaning up" -> "Reset for next command" - Added stage_searching_rows_for_update when searching for rows to be deleted. Other things: - Renamed all stages to start with big letter (before there was no consitency) - Increased performance_schema_max_stage_classes from 150 to 160. - Most of the test changes in performance schema comes from renaming of stages. - Removed duplicate output of variables and inital state in a lot of performance schema tests. This was done to make it easier to change a default value for a performance variable without affecting all tests. - Added start_server_variables.test to check configuration - Removed some duplicate "closing tables" stages - Updated position for "stage_init_update" and "stage_updating" for delete, insert and update to be just before update loop (for more exact timing). - Don't set "Checking permissions" twice in a row. - Remove stage_end stage from creating views (not done for create table either). - Updated default performance history size from 10 to 20 because of new stages - Ensure that ps_enabled is correct (to be used in a later patch)
40 lines
3.2 KiB
Plaintext
40 lines
3.2 KiB
Plaintext
show databases;
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Database
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information_schema
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mtr
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mysql
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performance_schema
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test
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select count(*) from performance_schema.performance_timers;
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count(*)
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5
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select count(*) from performance_schema.setup_consumers;
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count(*)
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12
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select count(*) > 3 from performance_schema.setup_instruments;
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count(*) > 3
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1
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select count(*) from performance_schema.setup_timers;
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count(*)
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4
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show engine PERFORMANCE_SCHEMA status;
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show status like "performance_schema%";
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select * from performance_schema.setup_instruments
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where name like "statement/%" and enabled='YES';
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NAME ENABLED TIMED
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select * from performance_schema.events_statements_summary_global_by_event_name
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where count_star > 0;
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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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select * from performance_schema.events_statements_summary_by_thread_by_event_name
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where count_star > 0;
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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
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select * from performance_schema.events_statements_summary_by_user_by_event_name
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where count_star > 0;
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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
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select * from performance_schema.events_statements_summary_by_host_by_event_name
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where count_star > 0;
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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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select * from performance_schema.events_statements_summary_by_account_by_event_name
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where count_star > 0;
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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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