BTW, Have you changed the MergePolicy & MergeScheduler settings also? Since Lucene 3.x/3.5 onwards, there have been new MergePolicy & MergeScheduler implementations available, like TieredMergePolicy & ConcurrentMergeScheduler.
Regards Pravesh -- View this message in context: http://lucene.472066.n3.nabble.com/IndexWrite-in-Lucene-Solr-3-5-is-slower-tp3989764p3989768.html Sent from the Solr - User mailing list archive at Nabble.com.