On 18-Sep-08, at 2:37 AM, Kris Kennaway wrote:
Andrew Berry wrote:
Can I simply rebuild the world (or use freebsd-update), and
portupgrade everything to rebuild for amd64? Or, will things break
as libraries are upgraded which still have 32-bit dependancies on
the system?
This is a pretty common question, did you try searching the archives
or google for the answer?
Yes, I did, and was quite surprised when I didn't find a clear answer :)
Also, AFAIK upgrading to a 64 bit system allows access to
additional registers on the CPU, leading to a performance increase.
The system will only have 1.5 gigs of RAM, so that's not an issue,
but are there any benchmarks out there comparing performance on <
4GB hardware with 32 bit and 64 bit Freebsd?
Performance is not a single number. Sometimes 64-bit systems can be
slower, sometimes faster. Run it on your own workload or look for a
narrowly tailored benchmark and see what happens for you.
The main workload on this machine is SpamAssassin and gcc (for
updating ports). So I guess I'll have to look into Perl specifically
then.
Thanks,
--Andrew
