libtorrent/parse_buffer_log.py

   1 #!/bin/python
   2 # Copyright Arvid Norberg 2008. Use, modification and distribution is
   3 # subject to the Boost Software License, Version 1.0. (See accompanying
   4 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 import os, sys, time
   7
   8 lines = open(sys.argv[1], 'rb').readlines()
   9
  10 #keys = ['send_buffer_utilization']
  11 keys = ['send_buffer_size', 'used_send_buffer', 'protocol_buffer']
  12 #keys = ['send_buffer_alloc', 'send_buffer', 'allocate_buffer_alloc', 'allocate_buffer', 'protocol_buffer']
  13 #keys = ['send_buffer_alloc', 'send_buffer', 'allocate_buffer_alloc', 'allocate_buffer', 'protocol_buffer', 'append_send_buffer']
  14
  15 average = ['send_buffer_utilization', 'send_buffer_size', 'used_send_buffer']
  16 average_interval = 120000
  17 render = 'lines'
  18
  19 time_limit = -1
  20 if len(sys.argv) > 2:
  21    time_limit = long(sys.argv[2])
  22
  23
  24 # logfile format:
  25 # <time(ms)> <key> <value>
  26 # example:
  27 # 16434 allocate_buffer: 17
  28 for k in keys:
  29
  30    last_sample = 0
  31    average_accumulator = 0
  32    average_samples = 0
  33    peak = 0
  34
  35    out = open(k + '.dat', 'wb')
  36    eval_average = False
  37    if k in average:
  38       eval_average = True
  39       peak_out = open(k + '_peak.dat', 'wb')
  40
  41    for l in lines:
  42       l = l.split(' ')
  43       if len(l) != 3:
  44          print l
  45          continue
  46       try:
  47          if l[1] == k + ':':
  48             if time_limit != -1 and long(l[0]) > time_limit: break
  49             time = l[0]
  50             value = l[2]
  51             if eval_average:
  52                while long(time) > last_sample + average_interval:
  53                   last_sample = last_sample + average_interval
  54                   if average_samples < 1: average_samples = 1
  55                   print >>out, '%d %f' % (last_sample, average_accumulator / average_samples)
  56                   print >>peak_out, '%d %f' % (last_sample, peak)
  57                   average_accumulator = 0
  58                   average_samples = 0
  59                   peak = 0
  60                average_accumulator = average_accumulator + float(value)
  61                average_samples = average_samples + 1
  62                if float(value) > peak: peak = float(value)
  63             else:
  64                print >>out, time + ' ' + value,
  65       except:
  66          print l
  67
  68    out.close()
  69    peak_out.close()
  70
  71 out = open('send_buffer.gnuplot', 'wb')
  72 print >>out, "set term png size 1200,700"
  73 print >>out, 'set output "send_buffer.png"'
  74 print >>out, 'set xrange [0:*]'
  75 print >>out, 'set xlabel "time (ms)"'
  76 print >>out, 'set ylabel "bytes (B)"'
  77 print >>out, "set style data lines"
  78 print >>out, "set key box"
  79 print >>out, 'plot',
  80 for k in keys:
  81    if k in average:
  82       print >>out, ' "%s.dat" using 1:2 title "%s %d seconds average" with %s,' % (k, k, average_interval / 1000., render),
  83       print >>out, ' "%s_peak.dat" using 1:2 title "%s %d seconds peak" with %s,' % (k, k, average_interval / 1000., render),
  84    else:
  85       print >>out, ' "%s.dat" using 1:2 title "%s" with %s,' % (k, k, render),
  86 print >>out, 'x=0'
  87 out.close()
  88
  89 os.system('gnuplot send_buffer.gnuplot')
  90