To really benchmark performance, and measure the difference between CLucene and Java Lucene, you'll have to use the same indexing / searching algorithm, which is not the case in the code you have posted.
It also seems you are using the latest version of Java Lucene. CLucene latest code (in the git repository) only conforms with Java Lucene 2.3.2. The real performance gain could be noticed when comparing this code to Java Lucene 2.3.2. Itamar. -----Original Message----- From: Šplíchal Jiří [mailto:splic...@tovek.cz] Sent: Tuesday, April 06, 2010 10:24 AM To: clucene-developers@lists.sourceforge.net Subject: Re: [CLucene-dev] Performance of CLucene Hello, there is one difference, that influences the size of the index: The Java version does not store the content of the document where the C++ version does. Jiri -----Original Message----- From: Huy Phan [mailto:dac...@gmail.com] Sent: Tuesday, April 06, 2010 8:28 AM To: clucene-developers@lists.sourceforge.net Subject: [CLucene-dev] Performance of CLucene Hi all, I've just ran a comparison between Apache Lucene and CLucene. My machine is Intel Pentium Dual Core, 1Gb ram, OS is Slackware 13.0. My dataset was only one text file with 200,000 lines, each line has format of "[id] <Tab> [content]" content is a string which has about 250-300 unicode words. The result is quite strange, since CLucene is much slower than Apache Lucene: CLucene took 617s, and index size is 566mb while Apache Lucene took only 122s and generate 125mb of index data. Anybody did the same comparison as I did and have a similar result ? I expected CLucene to be much faster than Apache Lucene anyway. PS: I paste here the indexing code, it's quite simple and straight forward: Apache Lucene: http://paste.pocoo.org/show/198146/ CLucene: http://paste.pocoo.org/show/198147/ ---------------------------------------------------------------------------- -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ CLucene-developers mailing list CLucene-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clucene-developers ---------------------------------------------------------------------------- -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ CLucene-developers mailing list CLucene-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clucene-developers ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ CLucene-developers mailing list CLucene-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/clucene-developers
