[Info-vax] What would be involved in moving RMS into kernel mode ?

[Arne Vajhøj]

On 5/4/2023 8:15 AM, Simon Clubley wrote:
> I also note that VSI have not responded to Mark's question after the
> better part of a week. That's not a good look.

VSI has to prioritize.

They have ISV's and customers waiting for tools and middleware
to kick off migration projects.

Getting those migration projects underway is important
for VSI.

Based on what has been posted so far then the current
performance on x86-64 is more than fine for the migration
project.

It seems even likely that the current performance on x86-64
will be good enough for production with current applications - if
performance was OK on Alpha and Itanium, then it will be OK
on x86-64.

The day VMS starts competing with Linux and the comparison is
no longer XYZ running on VMS x84-64 vs XYZ running on VMS Alpha
or Itanium but XYZ running on VMS x86-64 vs XYZ running on
Linux x86-64, then the efficiency becomes important for VSI.

So it is an important issue but it is not an urgent issue.

If VSI is lucky then the problem goes away with the native
build of VMS x86-64.

If not then they will need to measure where the time
is actually spent and fix what that is.

Guesses on where that time could be spent make for
great discussions on usenet, but for actually doing
something measuring will be needed.

Arne