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From Robert Muir <rcm...@gmail.com>
Subject Re: A lucene performance test
Date Tue, 14 Aug 2012 10:46:22 GMT
I think this benchmark is not really benchmarking writes at all, but
instead the time it takes to wait for merges to complete.

don't indexwriter.close() in your benchmark like this.

On Tue, Aug 14, 2012 at 6:44 AM, Stefan Trcek <wzzelfzzel@abas.de> wrote:
> Results for lucene-4.0.0-alpha:
>
> * Write performance decreased by a factor of about 2.
>
> * Index size increased by a factor 1.3
>
> * Search speed increased by a factor 1.6 (1m requests, 10m entries)
>   or even more
>
> * The ultra high performance for small indexes decreased.
>   But this doesn't matter.
>
> * The cache slowdowns are at 100.000 and 500.000 entries.
>   This is a great improvement compared to 1.000 and 200.000 in
>   lucene 3.5.
>
> * lucene searcher warmup is dramatically better, see the 1000-query
>   batch at the end.
>
> Stefan
>
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