Eneperf is installed in the MDEX Engine bin directory. It has the following usage.

usage: eneperf [-v] 
  [--header <header file path>] 
  [--help] [--gzip] 
  [--list] [--nreq <n>]
  [--nodnscache>] [--msec-between-updates]
  [--progress] [--pidcheck <pid>]
  [--prelude <log file path>]  [--postlude <log file path>]
  [--quitonerror] [--rcvbuf <size bytes>]
  [--record <recording file prefix>] [--record_hdr]
  [--record_ord] [--record_roll <max KB per recording file>]
  [--reqstats] [--reqtimeout <secs>] 
  [--runtime <max runtime (minutes)>]
  [--seek <n>] [--seekrepeat] [--sleeponerror <secs>]
  [--stats <num reqs>] [--throttle <max req/sec>] 
  [--updates-log]  [--version]
  [--warn <max req time warning threshold (msecs)>]
  <host> <port> <log> <num connections> <num iterations>

Eneperf has both required and optional settings.