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Michael McCandless commented on LUCENE-1476: -------------------------------------------- {quote} > Under the current system, I'm not certain that the deletions checks are that > excessive. {quote} I made a simple test that up-front converted the deleted docs BitVector into an int[] containing the deleted docsIDs, and then did the same nextDeletedDoc change to SegmentTermDocs. This was only faster if < 10% of docs were deleted, though I didn't do very thorough testing. I think the problem is with this change the CPU must predict a new branch (docNum >= nextDeletion) vs doing a no-branching lookup of the bit. > BitVector implement DocIdSet > ---------------------------- > > Key: LUCENE-1476 > URL: https://issues.apache.org/jira/browse/LUCENE-1476 > Project: Lucene - Java > Issue Type: Improvement > Components: Index > Affects Versions: 2.4 > Reporter: Jason Rutherglen > Priority: Trivial > Attachments: LUCENE-1476.patch, quasi_iterator_deletions.diff > > Original Estimate: 12h > Remaining Estimate: 12h > > BitVector can implement DocIdSet. This is for making > SegmentReader.deletedDocs pluggable. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org