Open Source Search Engine Benchmarks
Sean Fargo writes "This article has benchmarks for the latest versions of Lucene, Xapian, zettair, sqlite, and sphinx. It tests them by indexing Twitter and Medical Journals, providing comparative system stats and relevancy scores. All the benchmark code is open source."
Java is slow. If you took the same algorithm and coded it in an efficient compiled language, it would be faster. Much faster.