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38 lines
1.4 KiB
Text
38 lines
1.4 KiB
Text
update performance_schema.SETUP_INSTRUMENTS set enabled='YES'
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where name like "wait/synch/mutex/mysys/THR_LOCK_myisam";
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drop table if exists test.t1;
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drop table if exists test.t2;
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drop table if exists test.t3;
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truncate table performance_schema.EVENTS_WAITS_HISTORY_LONG;
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show variables like "thread_handling";
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Variable_name Value
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thread_handling one-thread-per-connection
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"----------------- Connection 1"
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create table test.t1(a int) engine=MYISAM;
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"----------------- Connection 2"
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create table test.t2(a int) engine=MYISAM;
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"----------------- Connection 3"
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create table test.t3(a int) engine=MYISAM;
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"----------------- Connection default"
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execute stmt_dump_events using @tid;
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event_name short_source operation number_of_bytes
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wait/synch/mutex/mysys/THR_LOCK_myisam mi_create.c: lock NULL
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execute stmt_dump_thread using @tid;
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name
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thread/sql/one_connection
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execute stmt_dump_events using @tid;
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event_name short_source operation number_of_bytes
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wait/synch/mutex/mysys/THR_LOCK_myisam mi_create.c: lock NULL
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execute stmt_dump_thread using @tid;
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name
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thread/sql/one_connection
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execute stmt_dump_events using @tid;
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event_name short_source operation number_of_bytes
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wait/synch/mutex/mysys/THR_LOCK_myisam mi_create.c: lock NULL
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execute stmt_dump_thread using @tid;
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name
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thread/sql/one_connection
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drop table test.t1;
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drop table test.t2;
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drop table test.t3;
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
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