Just wanted others to be aware. The recent changes made to Lucene made some queries incredibly fast (yay):
http://people.apache.org/~mikemccand/lucenebench/AndHighHigh.html while others seem to suffer: http://people.apache.org/~mikemccand/lucenebench/AndMedOrHighHigh.html I actually hit the latter case when doing some benchmarking around ram directory and was puzzled for a while about why the software dropped 2x in performance between commits that didn't do anything. The queries I use are fairly unusual (complex Booleans); I also pinged Adrien in private to verify my and my computer's sanity. :) The commit introducing the change is: 99dbe9368 LUCENE-8060: IndexSearcher's search and searchAfter methods now only compute total hit counts accurately up to 1,000. Again: I don't think it's the usual "human user" query case, but may be worth investigating (and I'm not throwing it on your shoulders, Adrien! ;) Dawid --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
