config root man

drop table if exists test.no_index_tab;
drop table if exists test.index_tab;
drop table if exists test.marker;
create table test.marker(a int);
update performance_schema.setup_consumers set enabled='NO';
update performance_schema.setup_instruments set enabled='NO';
update performance_schema.setup_instruments set enabled='YES'
  where name like "wait/io/table/%";
truncate table performance_schema.events_waits_history_long;
flush status;
flush tables;
create table test.no_index_tab
( a int, b char(30) default 'Default') engine = MyISAM;
create table test.index_tab
( a int, b char(30) default 'Default', unique key uidx(a)) engine = MyISAM;
show create table test.no_index_tab;
Table	Create Table
no_index_tab	CREATE TABLE `no_index_tab` (
  `a` int(11) DEFAULT NULL,
  `b` char(30) DEFAULT 'Default'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create table test.index_tab;
Table	Create Table
index_tab	CREATE TABLE `index_tab` (
  `a` int(11) DEFAULT NULL,
  `b` char(30) DEFAULT 'Default',
  UNIQUE KEY `uidx` (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
# Printing of 100 inserts per table is suppressed
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'no_index_tab';
SUM(NUMBER_OF_BYTES)
100
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'index_tab';
SUM(NUMBER_OF_BYTES)
100
select count(*) from test.no_index_tab;
count(*)
100
select count(*) from test.index_tab;
count(*)
100
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
select avg(a) from test.no_index_tab;
avg(a)
50.5000
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'no_index_tab';
SUM(NUMBER_OF_BYTES)
100
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
select avg(a) from test.index_tab;
avg(a)
50.5000
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'index_tab';
SUM(NUMBER_OF_BYTES)
100
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
select 1 as my_column from test.no_index_tab where a = 50;
my_column
1
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'no_index_tab';
SUM(NUMBER_OF_BYTES)
100
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
select 1 as my_column from test.index_tab where a = 50;
my_column
1
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'index_tab';
SUM(NUMBER_OF_BYTES)
1
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
delete from test.no_index_tab where a = 51;
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'no_index_tab';
SUM(NUMBER_OF_BYTES)
102
truncate table performance_schema.events_waits_history_long;
update performance_schema.setup_consumers set enabled='YES';
delete from test.index_tab where a = 51;
update performance_schema.setup_consumers set enabled='NO';
select SUM(NUMBER_OF_BYTES)
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema = 'test'
and object_name =  'index_tab';
SUM(NUMBER_OF_BYTES)
2
show global status like 'performance_schema_%';
Variable_name	Value
Performance_schema_accounts_lost	0
Performance_schema_cond_classes_lost	0
Performance_schema_cond_instances_lost	0
Performance_schema_digest_lost	0
Performance_schema_file_classes_lost	0
Performance_schema_file_handles_lost	0
Performance_schema_file_instances_lost	0
Performance_schema_hosts_lost	0
Performance_schema_index_stat_lost	0
Performance_schema_locker_lost	0
Performance_schema_memory_classes_lost	0
Performance_schema_metadata_lock_lost	0
Performance_schema_mutex_classes_lost	0
Performance_schema_mutex_instances_lost	0
Performance_schema_nested_statement_lost	0
Performance_schema_prepared_statements_lost	0
Performance_schema_program_lost	0
Performance_schema_rwlock_classes_lost	0
Performance_schema_rwlock_instances_lost	0
Performance_schema_session_connect_attrs_lost	0
Performance_schema_socket_classes_lost	0
Performance_schema_socket_instances_lost	0
Performance_schema_stage_classes_lost	0
Performance_schema_statement_classes_lost	0
Performance_schema_table_handles_lost	0
Performance_schema_table_instances_lost	0
Performance_schema_table_lock_stat_lost	0
Performance_schema_thread_classes_lost	0
Performance_schema_thread_instances_lost	0
Performance_schema_users_lost	0
drop table test.no_index_tab;
drop table test.index_tab;
update performance_schema.setup_consumers set enabled='NO';
truncate performance_schema.events_waits_history_long;
drop table test.marker;
flush status;
update performance_schema.setup_instruments set enabled='YES';
update performance_schema.setup_consumers set enabled='YES';