bno_plot(1) [debian man page]

BNO_PLOT(1)															       BNO_PLOT(1)

NAME

       bno_plot - generate interactive 3D plot of IO blocks and sizes

SYNOPSIS

       bno_plot [ -h | --help ]
		[ -v | --verbose ]
		[ -K | --keys-below ]
		[ <file...> ]

DESCRIPTION

       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.

AUTHORS

       bno_plot was written by Alan D. Brunelle.  This man page was created from the blktrace documentation by Bas Zoetekouw.

REPORTING BUGS

       Report bugs to <linux-btrace@vger.kernel.org>

COPYRIGHT

       Copyright (C) 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.

SEE ALSO

       btt (1), gnuplot (1), blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1)

blktrace git-20080213182518					 February 22, 2007						       BNO_PLOT(1)

BLKIOMON(8)															       BLKIOMON(8)

NAME

       blkiomon - monitor block device I/O based o blktrace data

SYNOPSIS

       blkiomon -I interval [ -h file ] [ -b file ] [ -D file ] [ -Q path_name -q msg_queue_id -m msg_id ] [ -V ]

DESCRIPTION

       blkiomon  is  a	block  device  I/O monitor. It periodically generates per-device request size and request latency statistics from blktrace
       data. It provides histograms as well as data that can be used to calculate min, max, average and variance. For this purpose, it consumes  D
       and C traces read from stdin.

       There are options for binary output and human-readable output to files and stdout. Output to a message queue is supported as well.

       There is no need to use blkparse with blkiomon. blkiomon is capable of consuming binary output written to stdout by blktrace.

OPTIONS

       -I interval
       --interval=interval
	      Set sample interval

       -h file
       --human-readable=file
	      Human-readable output file. Use '-' for stdout.

       -b file
       --binary=file
	      Binary output file. Use '-' for stdout.

       -D file
       --debug=file
	      Output file for debugging data. Use '-' for stdout.

       -Q path_name
       --msg-queue=path_name
	      Sets path_name as path name for existing message queue to be used for binary output.

       -q msg_queue_id
       --msg-queue-id=msg_queue_id
	      Sets msg_queue_id as ID for an existing message queue to be used for binary output.

       -m msg_id
       --msg-id=msg_id
	      Sets msg_id as message identifier to be used for binary output messages written to an existing message queue.

       -V
       --version
	      Print program version.

EXAMPLES

       To get I/O statistics for /dev/sdw every 10 seconds for a period of one hour, use the following command:

	   % blktrace /dev/sdw -a issue -a complete -w 3600 -o - | blkiomon -I 10 -h -

AUTHORS

       blkiomon and this man page were written by Martin Peschke.

REPORTING BUGS

       Report bugs to <linux-btrace@vger.kernel.org>

COPYRIGHT

       Copyright (C) 2008 IBM Corp.
       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.

SEE ALSO

       btrace (8), blktrace (8), blkparse (1), verify_blkparse (1), blkrawverify (1), btt (1)

								   July 17, 2008						       BLKIOMON(8)