Subject: Re: -RS/6000
To: None <>
From: Kamal R Prasad <>
List: port-powerpc
Date: 03/28/2003 05:08:44
can some one tell me what is the effort reqd to port netbsd  onto POWER=

based systems?
are there end-users who would like to see that happen?

----- Forwarded by Kamal R Prasad/India/IBM on 03/28/2003 10:36 AM ----=
                      Jochen Kunz                                      =
                      <jkunz@unixag-kl.        To:       Kamal R Prasad=
/India/IBM@IBMIN                =20
            >                cc:                     =
                                               Subject:  Re: -RS/6000  =
                      03/27/2003 06:13                                 =
                      PM                                               =

On 2003.03.27 14:10 Kamal R Prasad wrote:

> I have access to 43P-100
NetBSD should run on this. (The installer does not work correct, but
once the system is installed it is very stable.)

> as well as POWER based systems.
> what is the effort reqd to port it to POWER based systems?
I don't know enough about POWER and its relation to PowerPC. This can b=
everything from fast and simple to complex and very time consuming. Ask=

on There are the gurus who have the knowledge
to give you a better answer.

> will it find any end-users?
I am sure it will. There are many RS6k machines out there and many
people who like NetBSD.

> how mnay processors does netbsd scale to?
I think it has the same limits as every SMP implementation with a big
kernel lock. So, depending on the task you have to do, the practical
limit is from 4 to 8. It may run on more CPUs, but this would be
inefficient. This is no limit in NetBSD, it is a systematic limit in SM=
systems. You need a different architecture for more CPUs. Somthing like=

a cluster (RS/6000 SP, VAX/Alpha with OpenVMS or Tru64-Unix,
Linux-MOSIX) or NUMA (Sequent Dynix, SGI IRIX).