Michael McCandless <luc...@mikemccandless.com> wrote: > It's curious that you see this as a hot spot. > > Are you collecting a very large top N docs, relative to how many hits > the queries match, maybe?
I did some testing on that some time ago. Microbenchmarks, so usual caveats apply. https://sbdevel.wordpress.com/2015/10/05/speeding-up-core-search/ For non-tiny top-N I generally have a hard time seeing the justification of sentinel objects: If the hitcount is small, the allocation is wasted (your scenario). On the other hand, if the hitcount is high, the supposed win from pre-allocating the sentinels gets shadowed by overall processing. It only works well when hitcount is near top-N, where "near" is one of those things that are really hard to measure properly. - Toke Eskildsen --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
