[Info-vax] OS implementation languages

Robert A. Brooks FIRST.LAST at vmssoftware.com
Thu Aug 31 16:58:10 EDT 2023


On 8/31/2023 3:32 PM, Dave Froble wrote:

> Making your database files contiguous seems to be a winner.  Larger clustersize 
> for database files also helps, a lot.

Cluster size is not used for I/O; it's only used for storage allocation, where
a single bit in the storage allocation bitmap covers the number of blocks
in that volume's clustersize.

I/O is not done in clustersize chunks.

-- 

                    --- Rob




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