Re: Upgrading to 64 bit from a 32 bit installation on FBSD 7
Andrew Berry wrote: 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 :) Perhaps because it's not a simple operation ;) Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Upgrading to 64 bit from a 32 bit installation on FBSD 7
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
Re: Upgrading to 64 bit from a 32 bit installation on FBSD 7
Andrew Berry wrote: Hi, I've got a server which will be upgraded to my "castoff" parts which support amd64. This machine has been running Freebsd since the 5.0 RC's, starting on a P2 233Mhz, upgraded incrementally for a few years - a real testament to the stability of a FreeBSD install! What I've done in the past while upgrading is simply move the drive, and rebuild everything with an updated make.conf optimized for the new processor. 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? 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. Kris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
