Re: More dynamic KVA_SPACE

2002-09-02 Thread Terry Lambert
David O'Brien wrote: > > On Sun, Sep 01, 2002 at 09:51:32PM -0700, Terry Lambert wrote: > > The original claims for the tape-out on the x86-64 from AMD so > > that this could happen were September 2001, with sample units > > 1Q2002. The AMD schedule slipped. > > LOL! This slippage is *NOTHING*

Re: More dynamic KVA_SPACE

2002-09-02 Thread David O'Brien
On Sun, Sep 01, 2002 at 09:51:32PM -0700, Terry Lambert wrote: > The original claims for the tape-out on the x86-64 from AMD so > that this could happen were September 2001, with sample units > 1Q2002. The AMD schedule slipped. LOL! This slippage is *NOTHING* compared to Merced/IA-64. When I w

Re: More dynamic KVA_SPACE

2002-09-01 Thread Terry Lambert
"Brandon D. Valentine" wrote: [ ... AMD ... ] > In all seriousness I'm not sure where he got the idea that "these things > were supposed to be out a while ago" but I don't recall any claims from > AMD to confirm that. If anything AMD's development cycle for these > things makes Intel's developmen

Re: More dynamic KVA_SPACE

2002-09-01 Thread David O'Brien
On Fri, Aug 30, 2002 at 08:03:29AM -0700, Terry Lambert wrote: > For all we know, AMD has gotten out of the new Silicon business all > together, and will simply be shipping upgraded simulators of things > which would be cool if they were ever taped out, plactic'ed, and > slotted in a ZIF in non-ex

Re: More dynamic KVA_SPACE

2002-08-30 Thread Peter Wemm
mark tinguely wrote: > > Another interesting processor family is the AMD x86-64 ClawHammer. > I do not know the progress the FreeBSD/x86-64 project. I would imagine > the major difficulty will be getting a running compiler. Nope, the compiler is already pretty robust. > I just wish AMD added an

Re: More dynamic KVA_SPACE

2002-08-30 Thread Terry Lambert
Ut-oh. Time for a rant... mark tinguely wrote: > Another interesting processor family is the AMD x86-64 ClawHammer. > I do not know the progress the FreeBSD/x86-64 project. I would imagine > the major difficulty will be getting a running compiler. Actually, the major difficulty is getting a box

Re: More dynamic KVA_SPACE

2002-08-30 Thread mark tinguely
Another interesting processor family is the AMD x86-64 ClawHammer. I do not know the progress the FreeBSD/x86-64 project. I would imagine the major difficulty will be getting a running compiler. I just wish AMD added an 8K page size so the Page Table Maps did not eat so much memory. --mark ting

Re: More dynamic KVA_SPACE

2002-08-30 Thread Andrew Gallatin
Terry Lambert writes: > Wilko Bulte wrote: > > > I knew not to recommend the Alpha because it is limited to 2G > > > of physical memory. > > > > ? > > > > FreeBSD is limited to using 2G of whatever you have in the Alpha. > > Which is a deficiency that has been debated a number of times,

Re: More dynamic KVA_SPACE

2002-08-29 Thread Terry Lambert
Aaro J Koskinen wrote: > > > Am I completely off the track? What are the main reasons behind the > > > current KVM layout? > > > > Kernel code is not position independent. > > Yes, I understand this. It seems I failed to explain what I meant. :-( > > The reason for moving the kernel text, data a

Re: More dynamic KVA_SPACE

2002-08-29 Thread Terry Lambert
Wilko Bulte wrote: > > I knew not to recommend the Alpha because it is limited to 2G > > of physical memory. > > ? > > FreeBSD is limited to using 2G of whatever you have in the Alpha. > Which is a deficiency that has been debated a number of times, > IIRC it needs bus space work etc. See the ar

Re: More dynamic KVA_SPACE

2002-08-29 Thread Aaro J Koskinen
Hello Terry, On Thu, 29 Aug 2002, Terry Lambert wrote: > Aaro J Koskinen wrote: > > I've been thinking what kind of modifications would it need to decide > > the KVA space size at the kernel boot time (maybe an argument to > > btext), instead of compile time. In theory I can't see any obstacles.

Re: More dynamic KVA_SPACE

2002-08-29 Thread Wilko Bulte
On Thu, Aug 29, 2002 at 01:48:11PM -0700, Terry Lambert wrote: > Jake Burkholder wrote: > > > If you need a larger amount of UVA space, you might want to consider > > > buying an IA64 machine, instead, since the bigger your iron, the > > > bigger your KVA space requirements will be. > > > > What,

Re: More dynamic KVA_SPACE

2002-08-29 Thread Terry Lambert
Jake Burkholder wrote: > > If you need a larger amount of UVA space, you might want to consider > > buying an IA64 machine, instead, since the bigger your iron, the > > bigger your KVA space requirements will be. > > What, no UltraSPARC? :) :) :) Unfortunately, my SPARC machine is not an UltraS

Re: More dynamic KVA_SPACE

2002-08-29 Thread Jake Burkholder
Apparently, On Thu, Aug 29, 2002 at 12:41:14PM -0700, Terry Lambert said words to the effect of; > Aaro J Koskinen wrote: > > I've been thinking what kind of modifications would it need to decide > > the KVA space size at the kernel boot time (maybe an argument to > > btext), instead of c

Re: More dynamic KVA_SPACE

2002-08-29 Thread Terry Lambert
Aaro J Koskinen wrote: > I've been thinking what kind of modifications would it need to decide > the KVA space size at the kernel boot time (maybe an argument to > btext), instead of compile time. In theory I can't see any obstacles. > > Basically the approach would be simply the following: [ ..