[Info-vax] Reading Sequentially through an Indexed File...

[Paul Sture]

On 2018-05-16, Bob Koehler <koehler at eisner.nospam.decuserve.org> wrote:
> In article <2981784c-ff78-47f4-8b0f-ce6f1c8bb99f at googlegroups.com>, "Doc Trins O'Grace" <doctrinsograce at gmail.com> writes:
>> Very generally speaking:
>> 
>> On a OpenVMS V8.4 Itanium: with SET/RMS/QUERY=DISABLE; only doing $GETs (with NLK+RRL bits set), on an indexed file... all other things being equal. Are there any performance benefits to be garnered by opening the file exclusively versus shared?
>> 
>> Thank you!
>
>    Yes, but they are tiny unless someone else also opens it.  Then they
>    tend to be almost tiny, but can get to be measurable.

The differences can be seen, but much larger gains are to be seen by
upping buffer sizes.

-- 
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The learned usually find themselves equipped to live in a world that no
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