Where are lucene RAMDirectory benchmarks and how to benchmark

Question

I am hoping someone can point to on how to benchmark my lucense RAMDirectory index?

I have about 300-500K documents indexed (less than 80 characters per document) and I want to benchmark how fast the in-memory RAMDirectory is.

At a very high level, should this be tens or hundreds of queries per second?

Answer 1

Too many variables to even guess. What kind of queries you're running, your hardware, the makeup of your index, etc. That can make orders of magnitude of difference, so even a high-level guess would be meaningless.

You can take a look at Lucene's nightly benchmarks though, which use the Wikipedia English export (a much larger dataset than yours, of course, but it's something).