spray —
send many packets to host
  
    | spray | [ -ccount]
      [-ddelay]
      [-llength]
      host ... | 
spray sends multiple RPC packets to
  host and records how many of them were correctly
  received and how long it took.
The options are as follows:
  - -ccount
- Send count packets.
- -ddelay
- Pause delay microseconds between sending each
      packet.
- -llength
- Set the length of the packet that holds the RPC call message to
      length bytes. Not all values of
      length are possible because RPC data is encoded
      using XDR. sprayrounds up to the nearest possible
      value.
spray is intended for use in network
    testing, measurement, and management. This command
can be very hard on a network and should be used with
  caution.