MySQL 5.6中备份及还原performance_schema配置
一、setup.txt文件，用于备份performance_schema的配置。该脚本生成还原performance_schema中的setup表的SQL语句。

-- 备份setup_instruments
select concat('update performance_schema.setup_instruments set enabled=''',enabled,''' where name=''',name,''';')
from performance_schema.setup_instruments where enabled='NO';

-- 备份setup_consumers
select concat('update performance_schema.setup_consumers set enabled=''',enabled,''' where name=''',name,''';')
from performance_schema.setup_consumers where enabled='NO';

-- commit
select 'commit;';

二、执行setup.txt文件，备份performance_schema的配置。

mysql -h localhost -P 3306 -u root -pmysql -D test -s < d:\atmp\backup_perf_setup.sql > d:\ATMP\restore_perf_setup.sql

三、开启所有的setup配置进行监控。

update performance_schema.setup_instruments set enabled='YES' where enabled='NO';
update performance_schema.setup_consumers set enabled='YES' where enabled='NO';
commit;

四、监控完成后，还原performance_schema的配置。

D:\software\mysql\mysql-5.6.14-win32\bin>mysql -h localhost -P 3306 -u root -pmysql -D test -s < d:\ATMP\restore_perf_setup.sql

五、清空performance_schema的监控表的记录。

SELECT CONCAT('truncate table performance_schema.',table_name,';')
FROM information_schema.TABLES
WHERE table_schema='performance_schema'
AND table_name NOT LIKE 'setup%'
AND table_name NOT LIKE '%instances'
AND table_name NOT LIKE '%attrs'
AND table_name NOT IN ('performance_timers', 'threads');