client/tools/oprofile_diff

   1 #!/usr/bin/python
   2 import re, sys
   3
   4 def parse_file(filename):
   5     data = {}
   6     for line in open(filename):
   7         if re.match('\d', line):
   8             (samples, percent, symbol) = line.split()
   9             data[symbol] = float(percent)
  10     return data
  11
  12
  13 data1 = parse_file(sys.argv[1])
  14 data2 = parse_file(sys.argv[2])
  15
  16 delta = {}
  17 for symbol in data1.keys() + data2.keys():
  18     delta[symbol] = data1.get(symbol, 0) - data2.get(symbol, 0)
  19
  20 def lookup_delta(symbol):
  21     return delta[symbol]
  22
  23 sorted_deltas = sorted(delta.keys(), key=lookup_delta, reverse=True)
  24
  25 if len(sorted_deltas) > 40:
  26     sorted_deltas = sorted_deltas[0:20] + sorted_deltas[-20:]
  27
  28 for symbol in sorted_deltas:
  29     print '%2.3f %s' % (delta[symbol], symbol)