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

Johnny Billquist bqt at softjar.se
Sun May 7 18:15:09 EDT 2023


On 2023-05-04 22:57, Stephen Hoffman 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.

Hey! Be careful. You are basically describing RSX now... :-D
(RMS and ACPs are in user mode there, and you have zero-copy buffers 
both for read and write - with some limitations, of course...)

   Johnny




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