> From: [EMAIL PROTECTED]> Subject: Re: Phrase Query Performance Question>
> Date: Wed, 31 Oct 2007 15:25:42 -0700> To: solr-user@lucene.apache.org> > On
> 31-Oct-07, at 2:40 PM, Haishan Chen wrote:> > >> >
> http://mail-archives.apache.org/mod_mbox/lucene-java-user/ > >
> 200512.mbox/[EMAIL PROTECTED]> > It mentioned that
> http://websearch.archive.org/katrina/ (in nutch) > > had 10M documents and a
> search of "hurricane katrina" was able to > > return in 1.35 seconds with
> 600,867 hits. Althought the computer > > it was using might be more powerful
> than mine. I feel 937ms for a > > phrase query on a single field is kind of
> slower. Nutch actually > > expand a search to more complex queries. My index
> and the number of > > hits on my query ("auto repair") is about one fifth of
> > > websearch.archive.org and its testing query. So I feel a reasonable > >
> performance for my query should be less than 300 ms. I am not sure > > if I
> am right on that logic.> > I'm not sure that it is reasonable, but I'm not
> sure that it isn't. > However, have you tried other queries? 937ms seems a
> little high, > even for phrase queries.> > > Anyway I will collect the
> statistic on linux first and try out > > other options.> > Have you tried
> using the performance enhancements present in solr-trunk?> > -Mike
Here are some query statistic. The phrase queries look slow to me.
These are queries have more than 100000 hits. For those return a couple
thousand hits the responds time is quite fast.
But this is query on one field only.
("auto repair") 100384 hits 946 ms(auto repair) 100384 hits 31ms("car
repair"~1000000) 112183 hits 766 ms(car repair) 112183 hits 63
ms("business service"~1000000) 1209751 hits 1500 ms(business service) 1209751
hits 234 ms("shopping center"~1000000) 119481 hits 359 ms(shopping
center~1000000) 119481 hits 63 ms
I don't know what is solr-trunk yet but I will find out
Thank you
Haishan
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