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0244
2007 May 10
0
Large index performance = 8x decrease
hi,
i''m indexing a really large db table (~4.2 million rows). i''ve noticed
that after ~2M records, index performance decreases by almost an order
of magnitude. full dataset graph here:
http://i122.photobucket.com/albums/o244/spokeo/indexer-data.jpg
here''s a couple best-fit lines that represent the data points:
0-2M : y = 78.65655x + 144237.5
2.5M+ : y = 10.79832x + 1980630
the part that strikes me as most odd is the bend between 2M and 2.5M. i
haven''t read the ferret algorithm, but i would expect...