On Wed, 2012-07-18 at 17:50 +0200, Dragon Fly wrote: > If I want to improve performance, which of the following is better and why? > > 1. Buy a machine with a lot of RAM and use a RAMDirectory for the index.
As others has pointed out, MMapDirectory should work better than RAMDirectory. I am sure it will work fine with a relative small index such as yours. However, it does not scale that well with index size. > 2. Put the index on a solid state drive. Why anyone buys computers without SSD's is a mystery to me. Use SSDs for the small low-latency stuff and a secondary spinning drive for the large slow stuff. Nowadays, a 30GB index (or 100GB for that matter) falls into the small low-latency bucket. SSDs speeds up almost everything, saves RAM and spares a lot of work hours optimizing I/O-speed. Regards, Toke Eskildsen --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
