x86_64 in FC4?

Roland McGrath roland at redhat.com
Fri Feb 4 23:38:14 UTC 2005

Unlike other architectures with 32-bit and 64-bit flavors, where the
biggest change in 64-bit binaries is using twice as much space for a lot of
things, the x86-64 architecture also has twice as many registers as the
32-bit x86 and so 64-bit compiled code tends to perform noticeably better.

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