How do I calculate Client Response Time

I have loaded a file consisting of 100,000 NFS v.3 LOOKUP calls. If I go to Statistics | Service Response Time | ONC-RPC , select NFS v.3 and click on Apply, I get a table of Min, Max, Avg and Sum SRT. This I presume tells me those statistics for how quickly the NFS server is responding to the calls from the client. What I would like to know, however, is how quickly the client responds with the next call once the server responds to the previous one. Is that information available and how can I get it? Thanks!