Robert, I also wonder why it always request to collect doclist in-order https://github.com/apache/lucene-solr/blob/trunk/solr/core/src/java/org/apache/solr/search/SolrIndexSearcher.java#L1469 Do you think it make sense to raise a JIRA to allow out of order collecting?
On Tue, Nov 13, 2012 at 6:34 AM, Robert Muir <rcm...@gmail.com> wrote: > Whenever I look at solr users' stacktraces for disjunctions, I always > notice they get BooleanScorer2. > > Is there some reason for this or is it not intentional (e.g. maybe a > in-order collector is always being used when its possible at least in > simple cases to allow for out-of-order hits?) > > When I examine test contributions from clover reports (e.g. > https://builds.apache.org/job/Lucene-Solr-Clover-4.x/49/clover-report/), > I notice that only lucene tests, and solr spellchecking tests actually > hit BooleanScorer's collect. All other solr tests hit BooleanScorer2. > > If its possible to allow for an out of order collector in some common > cases (e.g. large disjunctions w/ minShouldMatch generated by solr > queryparsers), it could be a nice performance improvement. > > On Mon, Nov 12, 2012 at 3:48 PM, jchen2000 <jchen...@yahoo.com> wrote: > > The following was generated from jvisualvm. Seems like the perf is > related to > > scoring a lot. Any idea/pointer on how to customize that part? > > > > <http://lucene.472066.n3.nabble.com/file/n4019850/profilingResult.png> > > > > > > > > -- > > View this message in context: > http://lucene.472066.n3.nabble.com/customize-solr-search-scoring-for-performance-tp4019444p4019850.html > > Sent from the Solr - User mailing list archive at Nabble.com. > -- Sincerely yours Mikhail Khludnev Principal Engineer, Grid Dynamics <http://www.griddynamics.com> <mkhlud...@griddynamics.com>
