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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
0
select count(*) from performance_schema.setup_timers;
count(*)
4
select * from performance_schema.accounts;
select * from performance_schema.cond_instances;
select * from performance_schema.events_stages_current;
select * from performance_schema.events_stages_history;
select * from performance_schema.events_stages_history_long;
select * from performance_schema.events_stages_summary_by_account_by_event_name;
select * from performance_schema.events_stages_summary_by_host_by_event_name;
select * from performance_schema.events_stages_summary_by_thread_by_event_name;
select * from performance_schema.events_stages_summary_by_user_by_event_name;
select * from performance_schema.events_stages_summary_global_by_event_name;
select * from performance_schema.events_statements_current;
select * from performance_schema.events_statements_history;
select * from performance_schema.events_statements_history_long;
select * from performance_schema.events_statements_summary_by_account_by_event_name;
select * from performance_schema.events_statements_summary_by_digest;
select * from performance_schema.events_statements_summary_by_host_by_event_name;
select * from performance_schema.events_statements_summary_by_thread_by_event_name;
select * from performance_schema.events_statements_summary_by_user_by_event_name;
select * from performance_schema.events_statements_summary_global_by_event_name;
select * from performance_schema.events_waits_current;
select * from performance_schema.events_waits_history;
select * from performance_schema.events_waits_history_long;
select * from performance_schema.events_waits_summary_by_account_by_event_name;
select * from performance_schema.events_waits_summary_by_host_by_event_name;
select * from performance_schema.events_waits_summary_by_instance;
select * from performance_schema.events_waits_summary_by_thread_by_event_name;
select * from performance_schema.events_waits_summary_by_user_by_event_name;
select * from performance_schema.events_waits_summary_global_by_event_name;
select * from performance_schema.file_instances;
select * from performance_schema.file_summary_by_event_name;
select * from performance_schema.file_summary_by_instance;
select * from performance_schema.host_cache;
select * from performance_schema.hosts;
select * from performance_schema.mutex_instances;
select * from performance_schema.objects_summary_global_by_type;
select * from performance_schema.performance_timers;
select * from performance_schema.rwlock_instances;
select * from performance_schema.session_account_connect_attrs;
select * from performance_schema.session_connect_attrs;
select * from performance_schema.setup_actors;
select * from performance_schema.setup_consumers;
select * from performance_schema.setup_instruments;
select * from performance_schema.setup_objects;
select * from performance_schema.setup_timers;
select * from performance_schema.socket_instances;
select * from performance_schema.socket_summary_by_instance;
select * from performance_schema.socket_summary_by_event_name;
select * from performance_schema.table_io_waits_summary_by_index_usage;
select * from performance_schema.table_io_waits_summary_by_table;
select * from performance_schema.table_lock_waits_summary_by_table;
select * from performance_schema.threads;
select * from performance_schema.users;
show variables where
`Variable_name` != "performance_schema_max_statement_classes" and
`Variable_name` like "performance_schema%";
Variable_name Value
performance_schema ON
performance_schema_accounts_size 0
performance_schema_digests_size 200
performance_schema_events_stages_history_long_size 0
performance_schema_events_stages_history_size 0
performance_schema_events_statements_history_long_size 0
performance_schema_events_statements_history_size 0
performance_schema_events_waits_history_long_size 0
performance_schema_events_waits_history_size 0
performance_schema_hosts_size 0
performance_schema_max_cond_classes 0
performance_schema_max_cond_instances 0
performance_schema_max_digest_length 1024
performance_schema_max_file_classes 0
performance_schema_max_file_handles 0
performance_schema_max_file_instances 0
performance_schema_max_mutex_classes 0
performance_schema_max_mutex_instances 0
performance_schema_max_rwlock_classes 0
performance_schema_max_rwlock_instances 0
performance_schema_max_socket_classes 0
performance_schema_max_socket_instances 0
performance_schema_max_stage_classes 0
performance_schema_max_table_handles 0
performance_schema_max_table_instances 0
performance_schema_max_thread_classes 0
performance_schema_max_thread_instances 0
performance_schema_session_connect_attrs_size 0
performance_schema_setup_actors_size 0
performance_schema_setup_objects_size 0
performance_schema_users_size 0
show engine PERFORMANCE_SCHEMA status;
show status like "performance_schema%";
show variables like "performance_schema%";
Variable_name Value
performance_schema ON
performance_schema_accounts_size 0
performance_schema_digests_size 200
performance_schema_events_stages_history_long_size 0
performance_schema_events_stages_history_size 0
performance_schema_events_statements_history_long_size 0
performance_schema_events_statements_history_size 0
performance_schema_events_waits_history_long_size 0
performance_schema_events_waits_history_size 0
performance_schema_hosts_size 0
performance_schema_max_cond_classes 0
performance_schema_max_cond_instances 0
performance_schema_max_digest_length 1024
performance_schema_max_file_classes 0
performance_schema_max_file_handles 0
performance_schema_max_file_instances 0
performance_schema_max_mutex_classes 0
performance_schema_max_mutex_instances 0
performance_schema_max_rwlock_classes 0
performance_schema_max_rwlock_instances 0
performance_schema_max_socket_classes 0
performance_schema_max_socket_instances 0
performance_schema_max_stage_classes 0
performance_schema_max_statement_classes 0
performance_schema_max_table_handles 0
performance_schema_max_table_instances 0
performance_schema_max_thread_classes 0
performance_schema_max_thread_instances 0
performance_schema_session_connect_attrs_size 0
performance_schema_setup_actors_size 0
performance_schema_setup_objects_size 0
performance_schema_users_size 0
select * from performance_schema.setup_instruments;
NAME ENABLED TIMED
wait/io/table/sql/handler YES YES
wait/lock/table/sql/handler YES YES
idle YES YES
select TIMER_NAME from performance_schema.performance_timers;
TIMER_NAME
CYCLE
NANOSECOND
MICROSECOND
MILLISECOND
TICK
select * from performance_schema.setup_consumers;
NAME ENABLED
events_stages_current YES
events_stages_history YES
events_stages_history_long YES
events_statements_current YES
events_statements_history YES
events_statements_history_long YES
events_waits_current YES
events_waits_history YES
events_waits_history_long YES
global_instrumentation YES
thread_instrumentation YES
statements_digest YES
select NAME from performance_schema.setup_timers;
NAME
idle
wait
stage
statement
select * from performance_schema.accounts;
USER HOST CURRENT_CONNECTIONS TOTAL_CONNECTIONS
select * from performance_schema.cond_instances;
NAME OBJECT_INSTANCE_BEGIN
select * from performance_schema.events_stages_current;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_stages_history;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_stages_history_long;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_stages_summary_by_account_by_event_name;
USER HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_stages_summary_by_host_by_event_name;
HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_stages_summary_by_thread_by_event_name;
THREAD_ID EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_stages_summary_by_user_by_event_name;
USER EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_stages_summary_global_by_event_name;
EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_statements_current;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT LOCK_TIME SQL_TEXT DIGEST DIGEST_TEXT CURRENT_SCHEMA OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME OBJECT_INSTANCE_BEGIN MYSQL_ERRNO RETURNED_SQLSTATE MESSAGE_TEXT ERRORS WARNINGS ROWS_AFFECTED ROWS_SENT ROWS_EXAMINED CREATED_TMP_DISK_TABLES CREATED_TMP_TABLES SELECT_FULL_JOIN SELECT_FULL_RANGE_JOIN SELECT_RANGE SELECT_RANGE_CHECK SELECT_SCAN SORT_MERGE_PASSES SORT_RANGE SORT_ROWS SORT_SCAN NO_INDEX_USED NO_GOOD_INDEX_USED NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_statements_history;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT LOCK_TIME SQL_TEXT DIGEST DIGEST_TEXT CURRENT_SCHEMA OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME OBJECT_INSTANCE_BEGIN MYSQL_ERRNO RETURNED_SQLSTATE MESSAGE_TEXT ERRORS WARNINGS ROWS_AFFECTED ROWS_SENT ROWS_EXAMINED CREATED_TMP_DISK_TABLES CREATED_TMP_TABLES SELECT_FULL_JOIN SELECT_FULL_RANGE_JOIN SELECT_RANGE SELECT_RANGE_CHECK SELECT_SCAN SORT_MERGE_PASSES SORT_RANGE SORT_ROWS SORT_SCAN NO_INDEX_USED NO_GOOD_INDEX_USED NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_statements_history_long;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT LOCK_TIME SQL_TEXT DIGEST DIGEST_TEXT CURRENT_SCHEMA OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME OBJECT_INSTANCE_BEGIN MYSQL_ERRNO RETURNED_SQLSTATE MESSAGE_TEXT ERRORS WARNINGS ROWS_AFFECTED ROWS_SENT ROWS_EXAMINED CREATED_TMP_DISK_TABLES CREATED_TMP_TABLES SELECT_FULL_JOIN SELECT_FULL_RANGE_JOIN SELECT_RANGE SELECT_RANGE_CHECK SELECT_SCAN SORT_MERGE_PASSES SORT_RANGE SORT_ROWS SORT_SCAN NO_INDEX_USED NO_GOOD_INDEX_USED NESTING_EVENT_ID NESTING_EVENT_TYPE
select * from performance_schema.events_statements_summary_by_account_by_event_name;
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
select * from performance_schema.events_statements_summary_by_host_by_event_name;
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_thread_by_event_name;
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;
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_global_by_event_name;
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_waits_current;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT SPINS OBJECT_SCHEMA OBJECT_NAME INDEX_NAME OBJECT_TYPE OBJECT_INSTANCE_BEGIN NESTING_EVENT_ID NESTING_EVENT_TYPE OPERATION NUMBER_OF_BYTES FLAGS
select * from performance_schema.events_waits_history;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT SPINS OBJECT_SCHEMA OBJECT_NAME INDEX_NAME OBJECT_TYPE OBJECT_INSTANCE_BEGIN NESTING_EVENT_ID NESTING_EVENT_TYPE OPERATION NUMBER_OF_BYTES FLAGS
select * from performance_schema.events_waits_history_long;
THREAD_ID EVENT_ID END_EVENT_ID EVENT_NAME SOURCE TIMER_START TIMER_END TIMER_WAIT SPINS OBJECT_SCHEMA OBJECT_NAME INDEX_NAME OBJECT_TYPE OBJECT_INSTANCE_BEGIN NESTING_EVENT_ID NESTING_EVENT_TYPE OPERATION NUMBER_OF_BYTES FLAGS
select * from performance_schema.events_waits_summary_by_account_by_event_name;
USER HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_waits_summary_by_host_by_event_name;
HOST EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_waits_summary_by_instance;
EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_waits_summary_by_thread_by_event_name;
THREAD_ID EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_waits_summary_by_user_by_event_name;
USER EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.events_waits_summary_global_by_event_name;
EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
wait/io/table/sql/handler 0 0 0 0 0
wait/lock/table/sql/handler 0 0 0 0 0
idle 0 0 0 0 0
select * from performance_schema.file_instances;
FILE_NAME EVENT_NAME OPEN_COUNT
select * from performance_schema.file_summary_by_event_name;
EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
select * from performance_schema.file_summary_by_instance;
FILE_NAME EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
select * from performance_schema.session_account_connect_attrs;
PROCESSLIST_ID ATTR_NAME ATTR_VALUE ORDINAL_POSITION
select * from performance_schema.session_connect_attrs;
PROCESSLIST_ID ATTR_NAME ATTR_VALUE ORDINAL_POSITION
select * from performance_schema.socket_instances;
EVENT_NAME OBJECT_INSTANCE_BEGIN THREAD_ID SOCKET_ID IP PORT STATE
select * from performance_schema.socket_summary_by_instance;
EVENT_NAME OBJECT_INSTANCE_BEGIN COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
select * from performance_schema.socket_summary_by_event_name;
EVENT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT COUNT_READ SUM_TIMER_READ MIN_TIMER_READ AVG_TIMER_READ MAX_TIMER_READ SUM_NUMBER_OF_BYTES_READ COUNT_WRITE SUM_TIMER_WRITE MIN_TIMER_WRITE AVG_TIMER_WRITE MAX_TIMER_WRITE SUM_NUMBER_OF_BYTES_WRITE COUNT_MISC SUM_TIMER_MISC MIN_TIMER_MISC AVG_TIMER_MISC MAX_TIMER_MISC
select * from performance_schema.hosts;
HOST CURRENT_CONNECTIONS TOTAL_CONNECTIONS
select * from performance_schema.mutex_instances;
NAME OBJECT_INSTANCE_BEGIN LOCKED_BY_THREAD_ID
select * from performance_schema.objects_summary_global_by_type;
OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME COUNT_STAR SUM_TIMER_WAIT MIN_TIMER_WAIT AVG_TIMER_WAIT MAX_TIMER_WAIT
select * from performance_schema.rwlock_instances;
NAME OBJECT_INSTANCE_BEGIN WRITE_LOCKED_BY_THREAD_ID READ_LOCKED_BY_COUNT
select * from performance_schema.setup_actors;
HOST USER ROLE
select * from performance_schema.setup_objects;
OBJECT_TYPE OBJECT_SCHEMA OBJECT_NAME ENABLED TIMED
select * from performance_schema.threads;
THREAD_ID NAME TYPE PROCESSLIST_ID PROCESSLIST_USER PROCESSLIST_HOST PROCESSLIST_DB PROCESSLIST_COMMAND PROCESSLIST_TIME PROCESSLIST_STATE PROCESSLIST_INFO PARENT_THREAD_ID ROLE INSTRUMENTED
select * from performance_schema.users;
USER CURRENT_CONNECTIONS TOTAL_CONNECTIONS
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