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#!/usr/bin/env python
import ConfigParser
import re
import subprocess
import sys
ops = ['backup', 'restore', 'forget']
def parse_size(spec):
m = re.search('\d+', spec)
return int(m.group())
def dat_filename(op, node_size):
return '%s-%s-%d.dat' % (sys.argv[1], op, node_size)
def plotfile(op, node_size):
return ('"%s" with lines title "node size %d KiB"' %
(dat_filename(op, node_size), node_size))
for op in ops:
data = {}
for filename in sys.argv[2:]:
cp = ConfigParser.ConfigParser()
cp.read(filename)
desc = cp.get('meta', 'description')
words = desc.split()
node_size = parse_size(words[0])
chunk_size = parse_size(words[1])
secs = cp.getfloat('0', '%s.real' % op)
data[node_size] = data.get(node_size, []) + [(chunk_size, secs)]
for node_size in data:
points = sorted(data[node_size])
name = dat_filename(op, node_size)
with open(name, 'w') as f:
for chunk_size, secs in points:
f.write('%d %f\n' % (chunk_size, secs))
gnuplot = '''\
set terminal svg dynamic
set title "%s %s"
set xlabel "chunk size (KiB)"
set ylabel "time (s)"
''' % (sys.argv[1], op)
gnuplot += ('plot' +
', '.join(plotfile(op, x) for x in sorted(data.keys())) +
'\n')
script_name = '%s-%s.gnuplot' % (sys.argv[1], op)
with open(script_name, 'w') as f:
f.write(gnuplot)
with open('%s-%s.svg' % (sys.argv[1], op), 'wb') as outp:
subprocess.check_call(['gnuplot', script_name], stdout=outp)
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