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Nice jab at Emacs ;)Nice jab at Emacs ;)Posted Apr 24, 2003 2:33 UTC (Thu) by dlang (✭ supporter ✭, #313)In reply to: Nice jab at Emacs ;) by coriordan Parent article: Opteron launches yes there are people who have looked at things like 'cat' in 32 bit and 64 bit mode. there have been discussions on this topic on the kernel mailing list a few times, this is in part why you can run the PPC with a 64 bit kernel and 32 bit userspace (and why people want to) it turns out that if you have 64 bit kernel support simple tasks like cat really don't get any faster if you make cat 64 bit as well, and in some conditions actually make it slower due to the cache effects of the larger code the Opteron is even better in that it appears to allow you to run a mixed 32/64 bit userspace so programs that don't benifit from the 64 bit mode can remain small while those that do can be compiled in 64 bit mode to gain the advantages
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Opteron in 32 vs. 64 bit Posted Apr 24, 2003 20:27 UTC (Thu) by josh_stern (guest, #4868) [Link] When I looked at the specification of Opteron (some time ago), itseemed that one had to use 64 bit code in order to get the advantage of extra working registers (a significant shortage on 32 bit X86). Is this still true, or has it been revised?
Opteron in 32 vs. 64 bit Posted Apr 30, 2003 4:17 UTC (Wed) by emkey (guest, #144) [Link] Its my understanding that you can only use the extra registers in 64 bit mode on the released opteron.
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