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

[Simon Clubley]

On 2023-05-04, Stephen Hoffman <seaohveh at hoffmanlabs.invalid> wrote:
> On 2023-05-02 13:24:00 +0000, Simon Clubley said:
>
>> If the emulated executive mode is a major reason for the kernel 
>> overheads we are seeing on x86-64 VMS, what would be involved in moving 
>> RMS from executive mode directly into kernel mode ?
>
> If you're going to blue-sky this, move RMS and the XQP into a user-mode 
> process, preferably with zero-copy buffering.
>
> Whether a solitary process or replicated processes would depend on 
> complexity, aggregate system load, and available cores.
>
> Yeah, I know, I'm making a mach-ery of the existing two-by-two version 
> of the four-mode design.
>

Really ?

I thought you might have been making a mica-ery of the situation. :-)

(After posting, I remembered that the released Prism documents talk about
MICA running its version of RMS in user mode.)

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.