Performance of one query in two index of different size


(Yong Wang) #1

Hi there,
Is there any different of query performance in index with different size? I
mean, if there are two index, one is very small while the other is a pretty
big one, and both of these two share the same map. The query is to search
some word in docs indexed in last 10 minutes. If the numbers of hits
of two query are
same, in such situation, the performance of query is same or not?

Thanks!

Alan

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(Adrien Grand) #2

There are too many moving parts to give an accurate answer: smaller indexes
tend to play better with the filesystem cache, etc. The only way to know is
to test it on your own hardware. However, on average, I would expect the
query on the bigger index to be only slightly slower than on the smaller
one.

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Adrien Grand

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(system) #3