lat_unix man page on DragonFly

lat_unix man page on DragonFly

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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
       between 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 Larry $Date$			   LAT_UNIX(8)

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