We are using 2 VMs having t3.xlarge( 4 vCPU core, 16 Gib RAM, 2.5 GHZ processor) configuration.
We are sending asset from admin node to other peer node for a constant span with "sendfromaddress" API.
Please let us know whether we need to vary default blockchain parameters and what will be the number of users per node to attain 1000Tx/second.