I've been using 64 bit Linux on AMD and Core Duo machines for some time now. I started using 64 bit fc7t4 on my server in the hopes that would get around the ethernet reliability problems with newer kernels (it didn't).
None of my machines have more than 3GB memory.
Some programs run faster in 64 bits, but the only one I've compared (unrar) ran more slowly when compiled for 64 bits.
One program whose authors suggest 64 bits is the video editor Cinelerra. That said, the only Distro I've seen with a working Cinelerra is dyne:bolic, a 32 bit distro.
Some programs assume pointers and ints are the same size and/or that a long will hold a pointer as it has since the 8086. Digging out these bugs in unfamiliar source code is tedious at best.
So my inclination is to revert to 32 bits when fc7 comes out. I suppose this will all be sorted out by 2026.
On Fri, May 11, 2007 at 09:55:27AM -0700, Chuck Forsberg WA7KGX N2469R wrote:
So my inclination is to revert to 32 bits when fc7 comes out. I suppose this will all be sorted out by 2026.
Before which date the industry will be trying to foist 128 bit processors on us.
On Fri, 2007-05-11 at 09:55 -0700, Chuck Forsberg WA7KGX N2469R wrote:
I've been using 64 bit Linux on AMD and Core Duo machines for some time now. I started using 64 bit fc7t4 on my server in the hopes that would get around the ethernet reliability problems with newer kernels (it didn't).
None of my machines have more than 3GB memory.
Some programs run faster in 64 bits, but the only one I've compared (unrar) ran more slowly when compiled for 64 bits.
One program whose authors suggest 64 bits is the video editor Cinelerra. That said, the only Distro I've seen with a working Cinelerra is dyne:bolic, a 32 bit distro.
Some programs assume pointers and ints are the same size and/or that a long will hold a pointer as it has since the 8086. Digging out these bugs in unfamiliar source code is tedious at best.
So my inclination is to revert to 32 bits when fc7 comes out. I suppose this will all be sorted out by 2026.
You can get 64bit Cinelerra from Freshrpms. It was working fine last time I checked on FC6 x86_64.
On Fri, 11 May 2007 15:18:51 -0400, Dawid Zamirski wrote:
On Fri, 2007-05-11 at 09:55 -0700, Chuck Forsberg WA7KGX N2469R wrote:
One program whose authors suggest 64 bits is the video editor Cinelerra. That said, the only Distro I've seen with a working Cinelerra is dyne:bolic, a 32 bit distro.
You can get 64bit Cinelerra from Freshrpms. It was working fine last time I checked on FC6 x86_64.-- fedora-test-list mailing list fedora-test-list@redhat.com
Just to add to this line. cinelerra was freshly rebuilt for CentOS 5.0 64-bit by Dag yesterday (May 12, 2007).
http://dag.wieers.com/rpm/packages/cinelerra/
Akemi
Chuck Forsberg WA7KGX N2469R <caf <at> omen.com> writes:
Some programs assume [...] that a long will hold a pointer as it has since the 8086.
It will. A long is 64 bits on x86_64 (except with the broken M$ Win64 ABI, which luckily is not a concern on Fedora).
Of course, nowadays (ISO C99), those programs are supposed to use ptrint_t instead. But many programs are still stuck with C90, often also due to M$ which still doesn't support C99 in the latest Visual Studio C compiler!
Kevin Kofler
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Akemi Yagi -
Charles Curley -
Chuck Forsberg WA7KGX -
Dawid Zamirski -
Kevin Kofler