Author: Jay Urbanski
Date: 22:51:53 04/03/03
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On April 03, 2003 at 23:13:14, Robert Hyatt wrote: >But only the duals. My quad xeon gets nearly 2.0 speedup with 2 threads. > >Something is fishy. I'm looking at the new longer cache line stuff to see >if I have some things I can move around to prevent contention. Yes, but your quad is a Pentium III Xeon. The new "Xeons" are all based on the Pentium 4 core; those are the only ones so far that seem to exhibit this problem. (has anyone tried AMD?) I would hazard a guess that a 4-way P4 Xeon would exhibit the same problem; unless a larger cache masks the problem.
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