NAME
lat_connect - measure interprocess connection latency via TCP/IP
SYNOPSIS
lat_connect -s
lat_connect [ -P <parallelism> ] [ -W <warmups> ] [ -N <repetitions> ]
hostname
lat_connect -S hostname
DESCRIPTION
lat_connect is a client/server program that measures interprocess
connection latencies. The benchmark times the creation and connection
of an AF_INET (aka TCP/IP) socket to a remote server. Care is take
that the connection time does not include any other overhead, such as
the gethostbyname() or remote port lookups since these add more
overhead than the connection establishment itself.
lat_connect has three forms of usage: as a server (-s), as a client
(lat_connect localhost), and as a shutdown (lat_connect -S localhost).
OUTPUT
The reported time is in microseconds per connection. Output format is
like so
TCP/IP connection cost to localhost: 1006 microseconds
SEE ALSO
lmbench(8).
AUTHOR
Carl Staelin and Larry McVoy
Comments, suggestions, and bug reports are always welcome.
(c)1994 Larry McVoy $Date$