Hi Sachin, can you try also Solr 8.7 and Solr 8.8? In 8.8 has been introduced new functionality in LTR which is Interleaving. It shouldn't affect performance though, so we need to understand when the regression happened, to fix it. Your help is much appreciated, Cheers
-------------------------- *Alessandro Benedetti* CEO @ Sease Ltd. *Apache Lucene/Solr Committer* *Apache Solr PMC Member* e-mail: [email protected] *Sease* - Information Retrieval Applied Consulting | Training | Open Source Website: Sease.io <http://sease.io/> LinkedIn <https://linkedin.com/company/sease-ltd> | Twitter <https://twitter.com/seaseltd> | Youtube <https://www.youtube.com/channel/UCDx86ZKLYNpI3gzMercM7BQ> | Github <https://github.com/seaseltd> On Tue, 24 May 2022 at 13:26, sachin gk <[email protected]> wrote: > Hi All, > > We have recently upgraded the solr from 8.2.0 to 8.8.2. During the > performance testing it was observed that Response time for the LTR is > degraded by 35%. > > LTR Implementation details: > Model class : MultipleAdditiveTreesModel > > Out of the box classes are used for the implementation, we are unable to > pin point what is causing the degradation as it is internal to solr. > > Is there a configuration that needs to be taken care ? any ponter regarding > this wil be. of great help > > -- > Regards, > Sachin >
