Porting FreeBSD to Raspberry Pi
Lev Serebryakov
lev at FreeBSD.org
Fri Nov 4 10:13:53 UTC 2011
Hello, Arnaud.
You wrote 4 ноября 2011 г., 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 :)
What is so special about A8? We have some ARM code in tree, is Cortex
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) architecture.
BTW, we have infrastructure for crypto accelerators ;-)
And 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).
I participated in project, which added NUMA support to Sun JVM
HotSpot, and Solaris was only one which gives us all needed
information -- nor Linux nor Windows 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).
So, I cannot say, that FreeBSD is seriously behind the pack in NUMA support.
--
// Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>
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