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From karl wettin <karl.wet...@gmail.com>
Subject Re: IndexSearcher on multi-core CPU machine
Date Mon, 19 Feb 2007 15:38:52 GMT
I don't know. But I'm curious about the results.

19 feb 2007 kl. 16.33 skrev dmitri:

>
> I haven't tried using several IndexSearchers over a single  
> IndexReader.
> Do you think it can help?
> -------------------
> dmitri
>
>
> karl wettin-3 wrote:
>>
>>
>> What are the effects if you supply the same reader to  
>> IndexSearcher:s?
>>
>> 19 feb 2007 kl. 16.03 skrev dmitri:
>>
>>>
>>> I use
>>> -------------
>>> searcher = new IndexSearcher(indexLocation);
>>> -------------
>>>
>>> So readers are created under the hood.
>>>
>>> ----
>>> dmitri
>>>
>>>
>>> karl wettin-3 wrote:
>>>>
>>>>
>>>> 18 feb 2007 kl. 22.52 skrev dmitri:
>>>>
>>>>> With org.apache.lucene.store.MMapDirectory throughput is better  
>>>>> but
>>>>> I still
>>>>> have to create multiple IndexSearcher instances to have 100% CPU
>>>>> utilization.
>>>>>
>>>>> With multiple IndexSearchers search times are better under
>>>>> multithreaded
>>>>> load.
>>>>>
>>>>> concurrent      1 searcher           5 searchers       10  
>>>>> searchers
>>>>> threads
>>>>> 1               180                  177               167
>>>>> 100             4887                 4056              3775
>>>>
>>>> Are you using a single or multiple IndexReaders?
>>>>
>>>> --  
>>>> karl
>>>>
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>>>>
>>>>
>>>
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>>> on-multi-core-CPU-machine-tf3249889.html#a9043584
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>>> Nabble.com.
>>>
>>>
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>>
>>
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>>
>>
>
> -- 
> View this message in context: http://www.nabble.com/IndexSearcher- 
> on-multi-core-CPU-machine-tf3249889.html#a9044066
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
>
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