Author: Robert Hyatt
Date: 09:05:01 08/16/99
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On August 16, 1999 at 10:24:20, Bas Hamstra wrote: >Hello, > >What is 8probe exactly? It has to do with hashtables, I believe. But what is it? it is one method of handling collisions (collision here means two different entries want to be stored in the same table location.) 8 probe means you try 8 different table entries (this is sometimes called a 'bucket approach') and replace the least-useful one of those. It works well on machines with lots of memory bandwidth, but less well on a PC. It can be very effective if you have a table that is too small, for example... On large-memory machines, it loses its edge and can actually slow you down, since 8 probes into a hash table for every store/lookup call is not exactly free... > > > >Regards, >Bas Hamstra.
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