[Info-vax] VSI OpenVMS V9.1 Field Test beginning.

[Tad Winters]

On 7/1/2021 2:30 AM, Jan-Erik Söderholm via Info-vax wrote:
> Den 2021-07-01 kl. 10:26, skrev John Dallman:
>> In article <sbig2b$m5$1 at dont-email.me>, johnhreinhardt at thereinhardts.org
>> (John H. Reinhardt) wrote:
>>
>>> V9.1 Field Test Release Notes:
>>> <https://vmssoftware.com/docs/VSI-X86V91-RN.pdf>
>>
>> I don't know very much about VMS at the system management level. Section
>> 1.24 of this document says that OpenVMS x86 does not support swap files,
>> but does say that page files should be used.
>>
>> What's the difference between swapping and paging, on VMS?
>>
>> John
>>
>
> "Swapping" is for writing out whole processes to the swap-file.
> "Paging" is for writing out individual memory pages to the page-file.

On nearly every customer system, I configured the system to not swap.  I
figured that the cost of memory should be far cheaper than the lost
productivity a customer would have is users were "waiting" for the
system, and spinning disk was always pretty slow.  Since most users were
doing the same thing (order entry and related) on the system, it made
sense to have shared installed images.  They it was a matter of setting
the working set defaults as small as reasonable and setting working set
extents as high as necessary to reduce paging, assuming there was
sufficient memory.