I would suggest to keep the load same both for solr4 and solr6. And then test. Also please post exact concurrent hits
On 12 Feb 2018 12:48, "~$alpha`" <lavesh.ra...@gmail.com> wrote: When both solr4 and solr6 have concurrent hits: 1. 30 to 40 : Avg response time 470ms vs 380ms Load 6 vs 10 1. 80 to 90 : Avg response time 500ms vs 620ms (solr6 performing bad on peak hours) Load 11 vs 25 -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html