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On Thursday 30 September 2004 16:13, John Scott wrote:
InfoWorld's September 20 issue has a test/comparison of the em64t vs. Opteron.
http://www.infoworld.com/article/04/09/17/38FE64shootout2_1.html
The problem with this test, and anands test too, is that in the mysql benchmark they use mysql's own benchmark. That benchmark does a shitload of inserts and selects, but not the kind you would use in a webpage for instance. I'm going to run them too, and probably get a whole lot different results with my own benchmark based on our website. Last time I ran my own benchmark I tested a 32bits vs a 64bits mysql binary. MySQL's own benchmark gave the 64 bits version quite a lead, but in my testing the 32 bits was roughly 20% faster than the 64bits. I've tested it a couple of times and every time the 32 bits was in the lead up to 20%. Since than I lost my belief in mysql's benchmarks a bit ;).
John
-kees