Yonatan Komornik 33e39094e7 Reduce RowHash's tag space size by x2 (#3543) ...

Allocate half the memory for tag space, which means that we get one less slot for an actual tag (needs to be used for next position index).
The results is a slight loss in compression ratio (up to 0.2%) and some regressions/improvements to speed depending on level and sample. In turn, we get to save 16% of the hash table's space (5 bytes per entry instead of 6 bytes per entry).

2023-03-10 14:15:04 -08:00

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