Author: Vincent Diepeveen
Date: 04:41:25 08/11/00
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On August 10, 2000 at 13:45:11, J. Wesley Cleveland wrote: >On August 09, 2000 at 09:48:21, Robert Hyatt wrote: > >[snip] >> >>Two things have helped to offset the non-improving memory speed: cache and >>wider bus transfers. Some memory technologies (IE SDRAM) is no faster on >>random access than its predecessor, but if you read a big chunk of memory, >>all of the 8-byte reads (except for the first) are faster. As there is some >>internal buffering going on that helps for large transfers. But that raw >>latency is still there. > >I wonder if it would make crafty faster to reorganize the hash table into 48 >byte chunks, and read all three entries at once. I'm doing just a few cache line reads for my draughtsprogram and it speeds it up considerable. If you're above 200k a second reads at a PII450 or so, then SDRAM is really helpful here compared to the old edoram in my Pro200. SDRAM speeds my draughtsprogram up by 2 times at least.
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