Performance of the cluster

Elastic Stack Elasticsearch
1

Hi,

Please what is the command to meseure the performance of the cluster and the nodes, to show that when we add an other node the performance is more interesting ?

By performance I mean : Time of response

2

I usually find this one pretty helpful.

GET _cat/nodes/?v&h=name,heapPercent,ramPercent,cpu,fielddataMemory,requestCacheMemory,queryCacheMemory,diskUsedPercent