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From Roberto Ragusa <m...@robertoragusa.it>
Subject Re: Strange performance of Lucene 4.4.0
Date Sun, 08 Sep 2013 10:21:04 GMT
On 09/07/2013 04:59 PM, Mirko Sertic wrote:
> Hi@all
>  
> I am getting strange performance measures on Lucene 4.4.0, maybe someone can explain
this:
>  
> The following syntax leads to pretty slow queries on my machine(16ms for every execution):
>  
> theSearcher.search(theQuery, null, theSearcher.getIndexReader().maxDoc());
>  
> but the following syntax leads to an average execution time of 2ms:
>  
> theSearcher.search(theQuery, null, theSearcher.getIndexReader().maxDoc(), new Sort());
>  
> Just by providing an empty Sort() instance, which does not sort at all! The executed
query is a simple TermQuery, the index contains about 2'000'000 documents. This is quite strange..
>  

Are the results sorted in the first case? (maybe by ranking)

-- 
   Roberto Ragusa    mail at robertoragusa.it

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