Re: Porting FreeBSD to Raspberry Pi


Hi,

2011/11/4 Lev Serebryakov <lev@freebsd.org>:
> Hello, Arnaud.
> You wrote 4 =D0=BD=D0=BE=D1=8F=D0=B1=D1=80=D1=8F 2011 =D0=B3., 6:30:18:
>
>> $89, 700MHz Cortex A8, 256MB DRR2, micro-SD. However, do not expect
>> being able to run FreeBSD on it before a few years :)
> =C2=A0What is so special about A8? We have some ARM code in tree, is Cort=
ex
> SO different from previous architectures? As far as I understand, main
> problem in such platforms is different perefireal devices on each next
> chop and board, which doesn't have "common denominator" like PCI bus
> or other standard pieces, which helps a lot on PC (x86, amd64) architectu=
re.
>
> =C2=A0BTW, we have infrastructure for crypto accelerators ;-)
>
Yes, my bad.

> =C2=A0And what about NUMA... I know only one (almost-general-purpose) OS,
> which has full support for NUMA. It is Sun^WOracle Solaris. Ant it
> does it very well (not to forget about boxes like SunFire 25K with 72
> 2-core sockets at, as fa as I remember, 18 processor-memory boards).
>
> =C2=A0 =C2=A0I participated in project, which added NUMA support to Sun J=
VM
> HotSpot, and Solaris was only one which gives us all needed
> information -- nor Linux nor =C2=A0Windows either had not needed API two
> years ago, and as far as I know, there is no big changes in this area
> for them (but I could be wrong).
>
FWIW, referring to the technology two years ago in computer science is
just like referring to the Prehistory to make a point about mankind
today :/

 - Arnaud
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