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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject Re: RAM or File?
Date Tue, 26 May 2009 21:31:44 GMT

Yes.  I remember having a very hard time showing that RAMDirectory is faster than FSDirectory
back in 2004 while writing Lucene in Action No. 1.  If you run the unit test that's supposed
to show it, I think you'll see this.

Otis
--
Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch



----- Original Message ----
> From: Ted Dunning <ted.dunning@gmail.com>
> To: general@lucene.apache.org
> Sent: Tuesday, May 26, 2009 5:01:47 PM
> Subject: RAM or File?
> 
> What is the current received wisdom regarding the use of a ram-based or
> file-based retrieval?
> 
> Will file-based retrieval match ram based speed after sufficient warmup and
> assuming that the java memory footprint is kept small to allow maximal OS
> caching?
> 
> -- 
> Ted Dunning, CTO
> DeepDyve


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