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159 lines
5.4 KiB
Text
159 lines
5.4 KiB
Text
drop table if exists test.no_index_tab;
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drop table if exists test.index_tab;
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drop table if exists test.marker;
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create table test.marker(a int);
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update performance_schema.setup_consumers set enabled='NO';
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update performance_schema.setup_instruments set enabled='NO';
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update performance_schema.setup_instruments set enabled='YES'
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where name like "wait/io/table/%";
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truncate table performance_schema.events_waits_history_long;
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flush status;
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flush tables;
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create table test.no_index_tab
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( a int, b char(30) default 'Default') engine = MyISAM;
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create table test.index_tab
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( a int, b char(30) default 'Default', unique key uidx(a)) engine = MyISAM;
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show create table test.no_index_tab;
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Table Create Table
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no_index_tab CREATE TABLE `no_index_tab` (
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`a` int(11) DEFAULT NULL,
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`b` char(30) DEFAULT 'Default'
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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show create table test.index_tab;
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Table Create Table
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index_tab CREATE TABLE `index_tab` (
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`a` int(11) DEFAULT NULL,
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`b` char(30) DEFAULT 'Default',
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UNIQUE KEY `uidx` (`a`)
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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# Printing of 100 inserts per table is suppressed
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'no_index_tab';
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COUNT(*)
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100
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'index_tab';
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COUNT(*)
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100
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select count(*) from test.no_index_tab;
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count(*)
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100
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select count(*) from test.index_tab;
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count(*)
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100
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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select avg(a) from test.no_index_tab;
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avg(a)
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50.5000
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'no_index_tab';
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COUNT(*)
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101
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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select avg(a) from test.index_tab;
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avg(a)
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50.5000
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'index_tab';
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COUNT(*)
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101
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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select 1 as my_column from test.no_index_tab where a = 50;
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my_column
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1
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'no_index_tab';
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COUNT(*)
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101
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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select 1 as my_column from test.index_tab where a = 50;
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my_column
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1
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'index_tab';
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COUNT(*)
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1
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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delete from test.no_index_tab where a = 51;
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'no_index_tab';
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COUNT(*)
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102
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truncate table performance_schema.events_waits_history_long;
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update performance_schema.setup_consumers set enabled='YES';
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delete from test.index_tab where a = 51;
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update performance_schema.setup_consumers set enabled='NO';
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select COUNT(*)
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema = 'test'
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and object_name = 'index_tab';
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COUNT(*)
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2
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show status like 'performance_schema_%';
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Variable_name Value
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Performance_schema_accounts_lost 0
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Performance_schema_cond_classes_lost 0
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Performance_schema_cond_instances_lost 0
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Performance_schema_digest_lost 0
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Performance_schema_file_classes_lost 0
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Performance_schema_file_handles_lost 0
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Performance_schema_file_instances_lost 0
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Performance_schema_hosts_lost 0
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Performance_schema_locker_lost 0
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Performance_schema_mutex_classes_lost 0
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Performance_schema_mutex_instances_lost 0
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Performance_schema_rwlock_classes_lost 0
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Performance_schema_rwlock_instances_lost 0
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Performance_schema_session_connect_attrs_lost 0
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Performance_schema_socket_classes_lost 0
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Performance_schema_socket_instances_lost 0
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Performance_schema_stage_classes_lost 0
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Performance_schema_statement_classes_lost 0
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Performance_schema_table_handles_lost 0
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Performance_schema_table_instances_lost 0
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Performance_schema_thread_classes_lost 0
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Performance_schema_thread_instances_lost 0
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Performance_schema_users_lost 0
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drop table test.no_index_tab;
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drop table test.index_tab;
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update performance_schema.setup_consumers set enabled='NO';
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truncate performance_schema.events_waits_history_long;
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drop table test.marker;
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flush status;
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update performance_schema.setup_instruments set enabled='YES';
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update performance_schema.setup_consumers set enabled='YES';
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