On Tue, May 30, 2006 at 02:47:06PM -0700, Mark Crispin wrote: > Thus you are correct; it is necessary to compile UW IMAP in 32-bit mode. > There is no particular advantage to having imapd run in 64-bit mode (other > than, perhaps, a cosmetic one).
I've heard that the x64 architecture doubled the number of CPU registers vs 32-bit x86, and that this can make a very big difference in performance. If running 32-bit code when booted in a 64-bit OS limits you to half the available registers, then that could make a real difference in CPU performance. So, there is potentially some benefit. I bet that mostly this doesn't matter with imapd, given that it's mostly i/o bound anyway. Still, I found it very interesting when i learned that there was more than just a bigger address space available with x64. danno -- dan pritts - systems administrator - internet2 734/352-4953 office 734/834-7224 mobile _______________________________________________ Imap-uw mailing list [email protected] https://mailman1.u.washington.edu/mailman/listinfo/imap-uw
