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From buddhasystem <>
Subject How come key cache increases speed by x4?
Date Thu, 24 Feb 2011 00:04:42 GMT

Well I know the cache is there for a reason, I just can't explain the factor
of 4 when I run my queries on a hot vs cold cache. My queries are actually a
chain of one on an inverted index, which produces a tuple of keys to be used
in the "main" query. The inverted index query should be downright trivial.

I see the turnaround time per row go down to 1 ms from 4 ms. Am I missing
something? Why such a large factor?



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