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Home -> Community -> Mailing Lists -> Oracle-L -> Can Someone shed some light on this Pls
Pre 8.0 there was the LRU list, LRUW list and the Check point queue list.
Whenever a block is dirtied (and according to a algorithm) ultimately the
block was shifted to the LRUW list so that the DBWR can write the buffer
out and the Checkpoint queue was populated when a check point is happening
and the list of blocks that are to written out is made up in the check point
queue. I was told that in 8.0 onwards even though the LRUW list exists its
no longer used and the Check point queue list is used instead by te DBWR to
write the blocks. This helps DBWR writes the blocks in the sequence they
were dirtied.
Can someone shed some light on how a dirty block reaches the DB file in 8.0 version and above or Am I missing something?
Thanks in advance Received on Wed Jan 10 2001 - 05:22:17 CST
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