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LAT_CONNECT(8)                      LMBENCH                     LAT_CONNECT(8)


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                 $Date$                      LAT_CONNECT(8)

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