Re: forceMerge(1) leads to ~10% perf gains

Hi, Yes, a force-merged index can be faster, as less work is spent on looking up terms in different index segments. If you are looking for higher speed, non-merged indexes can actually perform better, IF you parallelize. You can do this by adding an Executor instance to IndexSearcher (

Re: forceMerge(1) leads to ~10% perf gains

> Was wondering - are there any other techniques which can be used to speed up that work well when forceMerge works like this? Lucene 9.8 (to be released in a few days hopefully) will add support to recursive graph bisection, which is another thing that can be used to speed up querying on read-onl