I did a 10046 trace and verified that I can get up to 128 blocks/IO with db_file_multiblock_read_count.
How do I metric this? I look at my total physical IOs when I did a tkprof report and my total number of physical IOs remained the same when I had the value set to 8 as when I had it set to 128?
Before I did this test, my assumption was:
'Oracle would do less total Physical IOs since I am retrieving more blocks per IO.'
That assumption proved false. Can someone explain why?
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Received on Wed Aug 18 2004 - 09:33:01 CDT
