Re: Does the KA630 have a TB?

[Anders Magnusson <ragge%tethuvudet.se@localhost>]

Den 2023-09-24 kl. 21:32, skrev Johnny Billquist:
> > > > > > I find it interesting that this NetBSD doesn't use TBIS at all.
> > > > > Agreed.  Seems like it would potentially be clever to just do TBIS
> > > > > when you update one page.
> > > > True.  It may be relevant that NetBSD/vax, 1.4T at least, uses 4K
> > > > pages in the getpagesize() sense; [...]
> > > The 4K page is a bit more recent.  Back when this was messed around
> > > with, NetBSD used a 1K page size on VAX.
> >
> > Well, the 1.4T kernel I'm working with definitely uses 4K pages.
> Change was back in 1998-08-21. Thanks for just reminding me how old 
> I'm getting. :-)
Wow.  It's just over 25 years ago.
I remember when testing with 4k logical pages it gave a huge performance 
gain, especially when starting binaries.
(most easy to time by doing "make build" on the 11/785 I used at that 
time.  It took several days to compile everything).

-- R