bno_plot - generate interactive 3D plot of IO blocks and sizes
bno_plot [ -h | --help ]
[ -v | --verbose ]
[ -K | --keys-below ]
[ <file...> ]
bno_plot is a visualization tool for the block layer IO tracing tool
called blktrace(8). As noted in its documentation, blktrace is a block
layer IO tracing mechanism which provides detailed information about
request queue operations up to user space.
bno_plot utilizes gnuplot to generate a 3D plot of the block number
output from btt. If no <files> are specified, it will utilize all
files generated after btt was run with -B blknos (meaning: all files of
the form blknos*[rw].dat).
The -K option forces bno_plot to put the keys below the graph. If it
is not specified, all keys for input files are put in the upper right
corner of the graph. If the number of devices exceed 10, then bno_plot
will automatically push the keys under the graph.
To use this utility, the gnuplot package needs to be installed.
To exit the plotter, enter ’quit’ or ^D at the ’gnuplot> ’ prompt.
bno_plot was written by Alan D. Brunelle. This man page was created
from the blktrace documentation by Bas Zoetekouw.
Report bugs to <email@example.com>
Copyright © 2008 Hewlett-Packard Development Company, L.P.
This is free software. You may redistribute copies of it under the
terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the
extent permitted by law.
This manual page was created for Debian by Bas Zoetekouw. It was
derived from the documentation provided by the authors and it may be
used, distributed and modified under the terms of the GNU General
Public License, version 2.
On Debian systems, the text of the GNU General Public License can be
found in /usr/share/common-licenses/GPL-2.
btt (1), gnuplot (1), blktrace (8), blkparse (1), verify_blkparse (1),