34 lines
1.0 KiB
Plaintext
34 lines
1.0 KiB
Plaintext
select count(*) from performance_schema.setup_instruments
|
|
where enabled='YES'
|
|
and name like "wait/%";
|
|
count(*)
|
|
0
|
|
select count(*) > 0 from performance_schema.mutex_instances;
|
|
count(*) > 0
|
|
1
|
|
select count(*) > 0 from performance_schema.rwlock_instances;
|
|
count(*) > 0
|
|
1
|
|
select count(*) > 0 from performance_schema.cond_instances;
|
|
count(*) > 0
|
|
1
|
|
select count(*) > 0 from performance_schema.socket_instances;
|
|
count(*) > 0
|
|
1
|
|
select NAME from performance_schema.mutex_instances
|
|
where NAME = "wait/synch/mutex/sql/tz_LOCK";
|
|
NAME
|
|
wait/synch/mutex/sql/tz_LOCK
|
|
select NAME from performance_schema.rwlock_instances
|
|
where NAME = "wait/synch/rwlock/sql/LOCK_system_variables_hash";
|
|
NAME
|
|
wait/synch/rwlock/sql/LOCK_system_variables_hash
|
|
select NAME from performance_schema.cond_instances
|
|
where NAME = "wait/synch/cond/sql/COND_server_started";
|
|
NAME
|
|
wait/synch/cond/sql/COND_server_started
|
|
select EVENT_NAME from performance_schema.socket_instances
|
|
where EVENT_NAME = "wait/io/socket/sql/client_connection";
|
|
EVENT_NAME
|
|
wait/io/socket/sql/client_connection
|