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From Mark Miller <markrmil...@gmail.com>
Subject Re: lucene 2.9.0RC4 slower than 2.4.1?
Date Tue, 15 Sep 2009 14:52:49 GMT
Thomas Becker wrote:
> Here's the results of profiling 10 different search requests:
>
> http://ankeschwarzer.de/tmp/lucene_24_oldapi.png
> http://ankeschwarzer.de/tmp/lucene_29_oldapi.png
> http://ankeschwarzer.de/tmp/lucene_29_newapi.png
>
> But you already gave me a good hint. The index being used is an old one build
> with lucene 2.4. I will now try a freshly build 2.9 index and see if performance
> improves. Maybe that already solves the issue...stupid me...
>   
That shouldn't be an issue unless there is some odd bug.

> We're updating the index every 30 min. at the moment and it gets optimized after
> each update.
>   
So this profiling is on an optimized index (eg a single segment) ?
That would be odd indeed, and possibly point to some of the scoring changes.

>
> Mark Miller wrote:
>   
>> Thomas Becker wrote:
>>     
>>> Hey Mark,
>>>
>>> thanks for your reply. Will do. Results will follow in a couple of minutes.
>>>
>>>
>>>   
>>>       
>> Thanks, awesome.
>>
>> Also, how many segments (approx) are in your index? If there are a lot,
>> have you/can you try the same tests on an optimized index? Don't want to
>> get ahead of the profiling results, but just to continue the info loop.
>>
>>     
>
>   


-- 
- Mark

http://www.lucidimagination.com




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