由于数据库上线过程中出现大量的RESMGR:cpu quantum等待事件,出现性能问题,关闭了resource manager功能,关闭过程如下:ALTER SYSTEM SET “_resource_manager_always_on”=FALSE SCOPE=SPFILE SID='*'; execute dbms_scheduler.set_attribute('SATURDAY_WINDOW','RESOURCE_PLAN',''); execute dbms_scheduler.set_attribute('SUNDAY_WINDOW','RESOURCE_PLAN',''); execute dbms_scheduler.set_attribute('MONDAY_WINDOW','RESOURCE_PLAN',''); execute dbms_scheduler.set_attribute('TUESDAY_WINDOW','RESOURCE_PLAN',''); execute dbms_scheduler.set_attribute('WEDNESDAY_WINDOW','RESOURCE_PLAN',''); execute dbms_scheduler.set_attribute('THURSDAY_WINDOW','RESOURC
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