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From "Karl Wettin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-675) Lucene benchmark: objective performance test for Lucene
Date Thu, 21 Sep 2006 11:08:23 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-675?page=comments#action_12436502 ] 
            
Karl Wettin commented on LUCENE-675:
------------------------------------

It is also interesting to know how much time is consumed to assemble an instance of Document
from the storage. According to my own tests this is the major reason to why InstantiatedIndex
is so much faster than a FS/RAMDirectory. I also presume it to be the bottleneck of any RDBMS-,
RMI- or any other "proxy"-based storage. 

> Lucene benchmark: objective performance test for Lucene
> -------------------------------------------------------
>
>                 Key: LUCENE-675
>                 URL: http://issues.apache.org/jira/browse/LUCENE-675
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Andrzej Bialecki 
>         Attachments: LuceneBenchmark.java
>
>
> We need an objective way to measure the performance of Lucene, both indexing and querying,
on a known corpus. This issue is intended to collect comments and patches implementing a suite
of such benchmarking tests.
> Regarding the corpus: one of the widely used and freely available corpora is the original
Reuters collection, available from http://www-2.cs.cmu.edu/afs/cs.cmu.edu/project/theo-20/www/data/news20.tar.gz
or http://people.csail.mit.edu/u/j/jrennie/public_html/20Newsgroups/20news-18828.tar.gz. I
propose to use this corpus as a base for benchmarks. The benchmarking suite could automatically
retrieve it from known locations, and cache it locally.

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