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BW_UNIX(8) LMBENCH BW_UNIX(8) NAME bw_unix - UNIX pipe bandwidth SYNOPSIS bw_unix [ -P <parallelism> ] [ -W <warmups> ] [ -N <repetitions> ] size DESCRIPTION bw_unix creates a pipe and forks a child process which keeps writing data to the pipe as fast as it can. The benchmark measures how fast the parent process can read the data in size-byte chunks from the pipe. Nothing is done with the data in either the parent (reader) or child (writer) processes. The size specification may end with ``k'' or ``m'' to mean kilobytes (* 1024) or megabytes (* 1024 * 1024). OUTPUT Output format is "%0.2f %.2f\n", megabytes, megabytes_per_second, i.e., 8.00 25.33 MEMORY UTILIZATION This benchmark should move approximately the reported amount of memory. ACKNOWLEDGEMENT Funding for the development of this tool was provided by Sun Microsys- tems Computer Corporation. SEE ALSO lmbench(8). AUTHOR Carl Staelin and Larry McVoy Comments, suggestions, and bug reports are always welcome. (c)1994-2000 Larry McVoy and Car... $Date$ BW_UNIX(8)
NAME | SYNOPSIS | DESCRIPTION | OUTPUT | MEMORY UTILIZATION | ACKNOWLEDGEMENT | SEE ALSO | AUTHOR
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