Multi-Threading in IndexSearcher (after removal of MultiSearcher and
ParallelMultiSearcher)
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Key: LUCENE-2840
URL: https://issues.apache.org/jira/browse/LUCENE-2840
Project: Lucene - Java
Issue Type: Sub-task
Components: Search
Reporter: Uwe Schindler
Priority: Minor
Fix For: 4.0
Spin-off from parent issue:
{quote}
We should discuss about how many threads should be spawned. If you have an
index with many segments, even small ones, I think only the larger segments
should be separate threads, all others should be handled sequentially. So maybe
add a maxThreads cound, then sort the IndexReaders by maxDoc and then only
spawn maxThreads-1 threads for the bigger readers and then one additional
thread for the rest?
{quote}
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