Paul,
We are working on delivering the next release by the end of the week so
I have to take care of 2 or 3 issues before I try the nightly build.
I promise to try it and report the results here.
Best,
Stanislav
Paul Elschot wrote:
Stanislav,
Could you also try a nightly build to test the later performance improvement
on BooleanScorer2? The nightly builds are here:
http://people.apache.org/builds/lucene/java/nightly/
The jar is called lucene-core-nightly.jar in the .tar.gz build.
It's not likely that this is faster than the 1.4 BooleanScorer,
but one never knows.
Regards,
Paul Elschot
On Tuesday 21 November 2006 17:59, Yonik Seeley wrote:
On 11/21/06, Stanislav Jordanov <[EMAIL PROTECTED]> wrote:
Switch to the old scorer (via BooleanQuery.setUseScorer14(true) )
solved the performance issue - now Lucene 1.9.1 & 2.0.0 perform on the
same load test just as 1.4.3 does
Thanks a lot Yonik!
Any chance there exists a non-professional explanation what's the
difference between old and new boolean scorers?
The original BooleanScorer was a bucket-based scorer that could
deliver docs out of order and thus restricted how it could be used.
It also had a limitation of 32 required or prohibited clauses (because
of an int bitmask).
BooleanScorer2 removes these limitations, and uses skipTo() where
applicable on sub-scorers.
-Yonik
http://incubator.apache.org/solr Solr, the open-source Lucene search server
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