# Performance test Problem **URL:** \ **Category:** Elasticsearch\ **Created:** [March 27, 2013, 2:37am UTC](https://discuss.elastic.co/t/performance-test-problem/11327 "2013-03-27T02:37:36Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![xiaoliang\_tian](https://avatars.discourse-cdn.com/v4/letter/x/a9a28c/32.png) [@xiaoliang\_tian](https://discuss.elastic.co/u/xiaoliang_tian)\ **Post date:** [March 27, 2013, 2:37am UTC](https://discuss.elastic.co/t/performance-test-problem/11327/1 "2013-03-27T02:37:36Z")
Test1 2 server Server1 node.mater:true node.data:false Server2 node.mater:false node.data:true I try to increase shard number to 15 and 20.But The Shards crashed during benchmark wvery time. Lots of message Lost So the best result: Index rate achieve 6k TPS Test2 After I add a new server3 node.mater:false node.data:true Index rate just achieve 4k TPS Why After I add a new server the Tps became low? Could u plz help me about this -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:44am UTC](https://discuss.elastic.co/t/performance-test-problem/11327/2 "2017-07-06T02:44:18Z")
Closed on July 6, 2017, 2:44am UTC