/usr/sbin/spray [-c count] [-d delay] [-l length]
[-t nettype] host
spray sends a one-way stream of packets to host
using RPC, and reports how many were received, as well as the transfer rate.
The host argument can be either a name or an Internet address.
spray is not useful as a networking benchmark, as it uses
unreliable connectionless transports, UDP for example. spray can
report a large number of packets dropped when the drops were caused by
spray sending packets faster than they can be buffered locally, that
is, before the packets get to the network medium.
Specify how many packets to send. The default value of
count is the number of packets required to make the total stream size
Specify how many microseconds to pause between sending
each packet. The default is 0.
The length parameter is the numbers of bytes in
the Ethernet packet that holds the RPC call message. Since the data is encoded
using XDR, and XDR only deals with 32 bit quantities, not all values of
length are possible, and spray rounds up to the nearest possible
value. When length is greater than 1514, then the RPC call can no
longer be encapsulated in one Ethernet packet, so the length field no
longer has a simple correspondence to Ethernet packet size. The default value
of length is 86 bytes, the size of the RPC and UDP
Specify class of transports. Defaults to netpath
for a description of supported classes.