Provided by: lmbench-doc_3.0-a9-1_all bug

NAME

       lat_pipe - measure interprocess communication latency through pipes

SYNOPSIS

       lat_pipe [ -P <parallelism> ] [ -W <warmups> ] [ -N <repetitions> ]

DESCRIPTION

       lat_pipe  uses  two  processes  communicating  through  a  Unix pipe to
       measure interprocess communication latencies.  The benchmark  passes  a
       token  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

       Pipe latency: 491 microseconds

ACKNOWLEDGEMENT

       Funding   for  the  development  of  this  tool  was  provided  by  Sun
       Microsystems Computer Corporation.

SEE ALSO

       lmbench(8).

AUTHOR

       Carl Staelin and Larry McVoy

       Comments, suggestions, and bug reports are always welcome.

(c)1994 Larry McVoy                 $Date$                         LAT_PIPE(8)