我看SG 時, 有點不明以下的句子, 請幫幫我.
When the PMPN process attempts to clean up an abnormally terminated process, it finds that the latch required to access the structure is not available. PMON continues with subsequent instructions rather than waiting for the latch to be freed.
係以上句子中, LATCH係用了IMMEDIATE的方法, 我想問, 當PMON找不到空閒的LATCH時, 為何可以繼續進行其他事情, 而所為subsequent instructions 是指什麼?
是否每一個在SGA內的進行的動作, 都而要一個LATCH呢?
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