bno_plot.py provides a means to visualize IOs (time V sector-number V IO-transfer-size) using a 3D graph. A sample set of data & the script itself can be found @ http://free.linux.hp.com/~adb/jens/bno_plot.tar.bz2 - just extract into a new directoy, and run ./bno_plot.py... Jens: If you'd like, I can just commit this & push the tree, but I didn't know if you wanted the blktrace .git tree filled with tools like this... Signed-off-by: Alan D. Brunelle <alan.brunelle@xxxxxx> --- Makefile | 3 +- btt/bno_plot.py | 127 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+), 1 deletions(-) diff --git a/Makefile b/Makefile index edc6ca9..c78cf6b 100644 --- a/Makefile +++ b/Makefile @@ -5,7 +5,8 @@ PROGS = blkparse blktrace verify_blkparse blkrawverify LIBS = -lpthread SCRIPTS = btrace -ALL = $(PROGS) $(SCRIPTS) btt/btt btreplay/btrecord btreplay/btreplay +ALL = $(PROGS) $(SCRIPTS) btt/btt btreplay/btrecord btreplay/btreplay \ + btt/bno_plot.py all: $(ALL) diff --git a/btt/bno_plot.py b/btt/bno_plot.py new file mode 100644 index 0000000..4d5b6f7 --- /dev/null +++ b/btt/bno_plot.py @@ -0,0 +1,127 @@ +#! /usr/bin/env python +# +# btt blkno plotting interface +# +# (C) Copyright 2008 Hewlett-Packard Development Company, L.P. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +""" +bno_plot.py + [ -h | --help ] + [ -K | --keys-below ] + [ -v | --verbose ] + [ <file...> ] + +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.py to put the keys below the graph, +typicall 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.py will +automatically push the keys under the graph. + +To exit the plotter, enter 'quit' or ^D at the 'gnuplot> ' prompt. +""" + +import getopt, glob, os, sys, tempfile + +verbose = 0 +cmds = """ +set title 'btt Generated Block Accesses' +set xlabel 'Time (secs)' +set ylabel 'Block Number' +set zlabel '# Blocks per IO' +set grid +""" + + +#----------------------------------------------------------------------------- +def parse_args(in_args): + global verbose + + keys_below = False + s_opts = 'hKv' + l_opts = [ 'help', 'keys-below', 'verbose' ] + + try: + (opts, args) = getopt.getopt(in_args, s_opts, l_opts) + except getopt.error, msg: + print >>sys.stderr, msg + print >>sys.stderr, __doc__ + sys.exit(1) + + for (o, a) in opts: + if o in ('-h', '--help'): + print __doc__ + sys.exit(0) + elif o in ('-v', '--verbose'): + verbose += 1 + elif o in ('-K', '--keys-below'): + keys_below = True + + if len(args) > 0: bnos = args + else: bnos = glob.glob('blknos*[rw].dat') + + return (bnos, keys_below) + +#----------------------------------------------------------------------------- +if __name__ == '__main__': + (bnos, keys_below) = parse_args(sys.argv[1:]) + + if verbose: + print 'Using files:', + for bno in bnos: print bno, + if keys_below: print '\nKeys are to be placed below graph' + else: print '' + + tmpdir = tempfile.mktemp() + os.mkdir(tmpdir) + + plot_cmd = None + for f in bnos: + t = '%s/%s' % (tmpdir, f) + + fo = open(t, 'w') + for line in open(f, 'r'): + fld = line.split(None) + print >>fo, fld[0], fld[1], int(fld[2])-int(fld[1]) + fo.close() + + t = t[t.rfind('/')+1:] + if plot_cmd == None: plot_cmd = "splot '%s'" % t + else: plot_cmd = "%s,'%s'" % (plot_cmd, t) + + fo = open('%s/plot.cmds' % tmpdir, 'w') + print >>fo, cmds + if len(bnos) > 10 or keys_below: print >>fo, 'set key below' + print >>fo, plot_cmd + fo.close() + + pid = os.fork() + if pid == 0: + cmd = '/usr/bin/gnuplot %s/plot.cmds -' % tmpdir + + if verbose: print 'Executing %s' % cmd + + cmd = cmd.split(None) + os.chdir(tmpdir) + os.execvp(cmd[0], cmd) + sys.exit(1) + + os.waitpid(pid, 0) + os.system('/bin/rm -rf ' + tmpdir) -- 1.5.2.5 - To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
