[Info-vax] OS implementation languages

[Dave Froble]

On 8/31/2023 4:58 PM, Robert A. Brooks wrote:
> 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.
>

That is correct, but, it helps with contiguous chunks, if the entire file isn't 
contiguous.

-- 
David Froble                       Tel: 724-529-0450
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