等待事件
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编辑 删除
LOCK: TX "Transaction Enqueue"
1. Reducing Waits / Wait times:The action to take depends on the lock type which is causing the most problems. It is beyond the scope of this reference note to look at the reasons for waits on each lock type - the most common lock waits are generally for: TX &n...
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编辑 删除
理解和调整BUFFER CACHE 以及 DBWR(database writer)
Understanding and Tuning Buffer Cache and DBWR (Doc ID 62172.1)理解和调整BUFFER CACHE 以及 DBWR(database writer)当我们的数据库出现一下等待事件的时候，说明数据库性能已经受到了影响：--1）Latch contention for the 'cache buffers lru chain' or the "cache buffer chain" latch--2）Large "Aver...
