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MDEV-7109: Add support for INFORMATION_SCHEMA.INNODB_SEMAPHORE_WAITS

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MDEV-7399: Add support for INFORMATION_SCHEMA.INNODB_MUTEXES
    MDEV-7618: Improve semaphore instrumentation

    Introduced two new information schema tables to monitor mutex waits
    and semaphore waits. Added a new configuration variable
    innodb_intrument_semaphores to add thread_id, file name and
    line of current holder of mutex/rw_lock.
This commit is contained in:
Jan Lindström
2015-02-21 21:45:16 +02:00
parent 9152b83973
commit 1cc7befc14
39 changed files with 2173 additions and 293 deletions
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21
mysql-test/suite/innodb/r/innodb_mutexes.result Normal file
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create table t1(a int not null primary key, b int, c int,d CHAR(100)) engine=innodb;
create procedure innodb_insert_proc (repeat_count int)
begin
declare current_num int;
set current_num = 0;
while current_num < repeat_count do
insert into t1 values(current_num, RAND(), RAND(), substring(MD5(RAND()), -64));
set current_num = current_num + 1;
end while;
end//
commit;
set autocommit=0;
call innodb_insert_proc(20000);
commit;
set autocommit=1;
delete from t1 where a between 1000 and 1300;
update t1 set b=b+1 where a between 2000 and 2600;
insert into t1 select a+30000,b,c,d from t1 where a between 3000 and 4000;
delete from t1 where a between 6000 and 7000;
drop procedure innodb_insert_proc;
drop table t1;