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MDEV-5864 - Reduce usage of LOCK_open: TABLE_SHARE::tdc.free_tables

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Let TABLE_SHARE::tdc.free_tables, TABLE_SHARE::tdc.all_tables,
TABLE_SHARE::tdc.flushed and corresponding invariants be protected by
per-share TABLE_SHARE::tdc.LOCK_table_share instead of global LOCK_open.
This commit is contained in:
Sergey Vojtovich
2014-03-20 11:11:13 +04:00
parent 8250824a12
commit e4fde57712
16 changed files with 122 additions and 134 deletions
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12
mysql-test/suite/perfschema/t/func_mutex.test
View File

@ -18,7 +18,7 @@ flush status;
# Make sure objects are instrumented
select NAME from performance_schema.mutex_instances
where NAME = 'wait/synch/mutex/sql/LOCK_open';
where NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share' GROUP BY NAME;
select NAME from performance_schema.rwlock_instances
where NAME = 'wait/synch/rwlock/sql/LOCK_grant';
@ -48,18 +48,18 @@ SELECT * FROM t1 WHERE id = 1;
SET @before_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/LOCK_open'));
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share'));
SELECT * FROM t1;
SET @after_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/LOCK_open'));
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share'));
SELECT IF((@after_count - @before_count) > 0, 'Success', 'Failure') test_fm1_timed;
UPDATE performance_schema.setup_instruments SET enabled = 'NO'
WHERE NAME = 'wait/synch/mutex/sql/LOCK_open';
WHERE NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share';
TRUNCATE TABLE performance_schema.events_waits_history_long;
TRUNCATE TABLE performance_schema.events_waits_history;
@ -69,13 +69,13 @@ SELECT * FROM t1 WHERE id = 1;
SET @before_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/LOCK_open'));
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share'));
SELECT * FROM t1;
SET @after_count = (SELECT SUM(TIMER_WAIT)
FROM performance_schema.events_waits_history_long
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/LOCK_open'));
WHERE (EVENT_NAME = 'wait/synch/mutex/sql/TABLE_SHARE::tdc.LOCK_table_share'));
SELECT IF((COALESCE(@after_count, 0) - COALESCE(@before_count, 0)) = 0, 'Success', 'Failure') test_fm2_timed;

3
mysql-test/suite/perfschema/t/server_init.test
View File

@ -43,9 +43,6 @@ select count(name) from cond_instances
# Verify that these global mutexes have been properly initilized in sql
select count(name) from mutex_instances
where name like "wait/synch/mutex/sql/LOCK_open";
select count(name) from mutex_instances
where name like "wait/synch/mutex/sql/LOCK_thread_count";