The Grumpy Editor goes 64-bit
Posted Apr 15, 2004 14:41 UTC (Thu) by evgeny
Parent article: The Grumpy Editor goes 64-bit
One more thing. Regarding the 64- vs 32-bit performance. Of course, one shouldn't expect big difference for 32-bit apps (I mean those manipulating 32-bit integers and floats) - not without some genuine magic inside processor and/or compiler at least. But with long longs and doubles, the difference should be impressive in most cases. My own numbercrunching codes (using doubles) jump exactly twice in productivity when going to 64 bits. Or, compare user time of md5sum ran over a large (e.g. an ISO image) file.
As far as the amd64 arch is considered, one should realize that its direct competitor (before Intel announced its "own" x86_64), P4/Xeon4 is nothing but braindamaged multimedia-oriented castrated PIII. The only runner-up is Centrino but finding a SMP Centrino box is not a trivial task ;-). Plus, GHz of AMD are higher. So, even compiled for x86_32 (if e.g. one is bound to a commercial 32bit-only compiler) computational-intensive sci apps should significantly outperform when run on amd64.
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