| 2018-01-24 18:24:44 |
Paul F. Dietz |
description |
The current algorithm for /= does O(N^2) comparisons on N arguments. For large N, it would be more efficient to use an EQUALP hash table (or a hash table specialized for numbers). The crossover is somewhere around N=60, by experiment using a standard EQUALP hash table created with :size N. |
The current algorithm for /= does O(N^2) comparisons on N arguments. For large N, it would be more efficient to use an EQUALP hash table (or a hash table specialized for numbers). The crossover is somewhere around N=60, by experiment using a standard EQUALP hash table created with :size N.
(Use of SXHASH and a Bloom filter might be even faster.) |
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