Author: Yen Art Tham
Date: 11:02:26 06/18/04
Go up one level in this thread
On June 18, 2004 at 08:51:34, Aaron Gordon wrote: >On June 18, 2004 at 06:39:17, Vincent Diepeveen wrote: > >>On June 17, 2004 at 21:39:26, Aaron Gordon wrote: >> >>You asked for example : >> >>Why filling all banks of a P4C/P4EE cas2 is helping a lot for DIEP you can read >>at www.aceshardware.com, hardware reviews from the different processors and >>comparing them against each other. >> >>The speedups reported by Johan thanks to SMT/HT only could get reproduced by >>testers with all memory banks filled. If you fill 1 bank only, you don't get >>like 21% speedup out of HT at all. >> >>See www.aceshardware.com > >Looks like he agrees with me: > >His quote: "No surprises here, as DIEP is more or less immune to faster memory >subsystems." > >Link to page: >http://www.aceshardware.com/read.jsp?id=65000313 > >If you notice in the benchmarks, DIEP speeds up 1kn/s (148 to 149) going to >lower latency non-registered / non-ecc memory on the same CPU. Now double memory >bandwidth, you'll notice no difference. Only difference I've seen is from >decreasing memory/bus latency. Even then it is EXTREMELY small and one could say >it is within margin of error. In other words, there is no significant difference in the performance of a chess program when using either generic memory or expensive memory like Corsair. Correct?
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