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LAT_UNIX(8)			    LMBENCH			   LAT_UNIX(8)

NAME
       lat_unix	- measure interprocess communication latency via UNIX sockets

SYNOPSIS
       lat_unix	 [ -m <message size> ] [ -P <parallelism> ] [ -W <warmups> ] [
       -N <repetitions>	]

DESCRIPTION
       lat_unix	is a client/server program that	measures interprocess communi-
       cation latencies.  The benchmark	passes a message back  and  forth  be-
       tween  the two processes	(this sort of benchmark	is frequently referred
       to as a ``hot potato'' benchmark).   No	other  work  is	 done  in  the
       processes.

OUTPUT
       The  reported  time  is in microseconds per round trip and includes the
       total time, i.e., the context switching overhead	is includeded.	Output
       format is like so

       AF_UNIX sock stream latency: 700	microseconds

ACKNOWLEDGEMENT
       Funding for the development of this tool	was provided by	Sun  Microsys-
       tems Computer Corporation.

SEE ALSO
       lmbench(8), lat_fcntl(8), lat_fifo(8), lat_tcp(8), lat_udp(8).

AUTHOR
       Carl Staelin and	Larry McVoy

       Comments, suggestions, and bug reports are always welcome.

(c)1994-2000 Carl Staelin and La... $Date$			   LAT_UNIX(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=lat_unix&sektion=8&manpath=FreeBSD+Ports+15.0>

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