pipemeter man page on DragonFly
[printable version]
PIPEMETER(1) PIPEMETER(1)
NAME
pipemeter - measure speed of data going through a pipe/redirection
SYNOPSIS
pipemeter [ -alV ] [ -s size ] [ -b block_size ] [ -m max_block_size ]
[ -i interval ] [ -f infile -f infile2 ] infile infile2 ...
DESCRIPTION
pipemeter simply takes input on stdin, and redirects it to its stdout.
While doing this, it measures how fast the data is moving through it.
Alternatively, with the -s parameter, shows a progress bar as data is
piped through it. All output generated by pipemeter is written to
stderr.
While running in progress mode, pipemeter will display the ETA (Esti‐
mated Time of Arrival). When exiting, it will change this field to show
the elapsed time for the program. In rate-only mode, it will just show
elapsed time.
Note that as of pipemeter 0.8, Adaptive Block Sizing is used to speed
up the movement of data through it. It will increase, or sometimes
decrease, the block size in an attempt to find the one that works best
for the combination of input and output. This also helps it deal better
with, for instance, a temporarily busy disk. You can use -a to turn it
off.
-s, --size size
Sets the size of the input, and turns on the progress bar.
-b, --blocksize block_size
Sets the size of blocks, in bytes, to move through the program
at once. Default is 8192. A suffix of K means Kilobytes(x*1024)
means Megabytes(x*1024*1024), and G means Giga‐
bytes(x*1024*1024*1024).
-m, --maxblock max_block_size
Sets the maxium block size for adaptive block sizing. Default is
8M.
-i, --interval interval
Specify the number of seconds between updates on the speed
and/or progress bar.
-f, --file infile
infile specifies a file to be read instead of stdin. It will
also automatically turn on the progress bar if a size can be
determined. Multiple occurances of -f will read the files in the
order they are specified on the cmdline, and sizes will be added
to eachother. Note that this option remains for backward compat‐
ibility, it is far simpler to just specify the input files with‐
out options.
-F, --list listfile
specifies a file to read in the list of input files from. Each
line is a path to a file, terminated by a newline.
-r, --report
report only mode. This causes the program to suppress out‐
putting/calculating while running. It will print out only one
line.
-a, --autooff
turn off adaptive block sizing. Sometimes ABS can use insane
amounts of RAM, such as when reading and writing to RAM disks.
-V, --version
Prints a version number and exits.
-l, --log
Turns on logging mode. Uses only newlines, no returns.
AUTHOR
Written by Clint Byrum <cbyrum@spamaps.org>
COPYRIGHT
Copyright © 2006 Clint Byrum
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
PIPEMETER(1)
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