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authorAlan D. Brunelle <alan.brunelle@hp.com>2008-02-05 13:46:51 -0500
committerAlan D. Brunelle <alan.brunelle@hp.com>2008-02-05 13:46:51 -0500
commit1306385d0dca139437b447785edf2e19d0f5c960 (patch)
treeac3426d5c2c5b706998c547066871c6988ebe370 /btt
parent00a47cd169f2cc87b5f63fe93226b7231dee678c (diff)
downloadblktrace-1306385d0dca139437b447785edf2e19d0f5c960.tar.gz
blktrace-1306385d0dca139437b447785edf2e19d0f5c960.tar.bz2
Added bno_plot.py - generate interactive 3D plot of IO blocks and sizes
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.
Diffstat (limited to 'btt')
-rw-r--r--btt/bno_plot.py127
1 files changed, 127 insertions, 0 deletions
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)