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List:       lucene-dev
Subject:    Re: [jira] Created: (LUCENE-1195) Performance improvement for TermInfosReader
From:       robert engels <rengels () ix ! netcom ! com>
Date:       2008-02-27 0:34:39
Message-ID: EDF873DC-62EE-4B53-BBDA-9F3179BD9AC3 () ix ! netcom ! com
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That's what I was pointing out. The test is VERY broken....

On Feb 26, 2008, at 5:53 PM, Mike Klaas wrote:

>
> On 26-Feb-08, at 3:00 PM, Michael Busch (JIRA) wrote:
>>
>> 50,000 AND queries with 3 terms each:
>> old:                  152 secs
>> new (with LRU cache): 112 secs (26% faster)
>>
>> 50,000 OR queries with 3 terms each:
>> old:                  175 secs
>> new (with LRU cache): 133 secs (24% faster)
>>
>> For bigger indexes this patch will probably have less impact, for  
>> smaller once more.
>
> Wow -- term lookup occupied 50% of the query execution time?!  How  
> many documents matched these queries?
>
> -Mike
>
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