premiere-libtorrent/parse_dht_log.py

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import sys
import os
up_time_quanta = 60
f = open(sys.argv[1])
announce_histogram = {}
node_uptime_histogram = {}
for i in xrange(0, 50): announce_histogram[i] = 0
for i in xrange(0, 5000, up_time_quanta): node_uptime_histogram[i] = 0
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counter = 0;
for line in f:
counter += 1
if counter % 1000 == 0:
print '\r%d' % counter,
try:
if 'distance:' in line:
l = line.split(' ')
d = int(l[4])
announce_histogram[d] += 1
if 'NODE FAILED' in line:
l = line.split(' ')
if int(l[9]) != 1: continue;
d = int(l[11])
node_uptime_histogram[d - (d % up_time_quanta)] += 1
except:
print line.split(' ')
out = open('dht_announce_distribution.dat', 'w+')
for k,v in announce_histogram.items():
print >>out, '%d %d' % (k, v)
out.close()
out = open('dht_node_uptime_distribution.dat', 'w+')
for k,v in node_uptime_histogram.items():
print >>out, '%d %d' % (k + up_time_quanta/2, v)
out.close()
out = open('dht.gnuplot', 'w+')
out.write('''
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set term png size 1200,700 small
set output "dht_announce_distribution.png"
set title "bucket # announces are made against relative to target node-id"
set ylabel "# of announces"
set style fill solid border -1 pattern 2
plot "dht_announce_distribution.dat" using 1:2 title "announces" with boxes
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set terminal postscript
set output "dht_announce_distribution.ps"
replot
set term png size 1200,700 small
set output "dht_node_uptime_distribution.png"
set title "node up time"
set ylabel "# of nodes"
set xlabel "uptime (seconds)"
set boxwidth %f
set style fill solid border -1 pattern 2
plot "dht_node_uptime_distribution.dat" using 1:2 title "nodes" with boxes
''' % up_time_quanta)
out.close()
os.system('gnuplot dht.gnuplot');