1 #!/usr/bin/python 2 # Copyright Martin J. Bligh (mbligh (at] google.com) 3 # Released under the GPL, v2 4 5 import os, sys, re 6 7 results_per_sign = 10 8 9 def parse_lines(filename): 10 results = [] 11 start_key = 1 12 for line in open(filename).readlines(): 13 try: 14 a = line.split() 15 key = ' '.join(a[start_key:]) 16 count = int(a[0]) 17 results.append((key, count)) 18 except: # presumably a header line 19 if re.match(r'samples\s*%\s*app name\s*symbol name', line): 20 start_key = 2 21 elif re.match(r'samples\s*%\s*image name\s*app name\s*symbol name', line): 22 start_key = 3 23 return results 24 25 26 # Firstly, suck in both files. 27 orig = {} 28 new = {} 29 diff = {} 30 31 for (key, count) in parse_lines(sys.argv[1]): 32 # Oprofile seems to be ... erm ... broken. Keys can appear > once ;-( 33 if orig.has_key(key): 34 orig[key] += count 35 else: 36 orig[key] = count 37 if diff.has_key(key): 38 diff[key] -= count 39 else: 40 diff[key] = -count 41 42 for (key, count) in parse_lines(sys.argv[2]): 43 if new.has_key(key): 44 new[key] += count 45 else: 46 new[key] = count 47 if diff.has_key(key): 48 diff[key] += count 49 else: 50 diff[key] = count 51 52 if len(orig) < 2* results_per_sign or len(new) < 2 * results_per_sign: 53 sys.exit(1) # one of the files was blank? 54 55 # Now sort and print the diffs. 56 def print_key(key): 57 if orig.has_key(key) and orig[key] > 0: 58 pct = (100 * diff[key]) / orig[key] 59 else: 60 pct = 0 61 print "%10d %6.1f%% %s" % (diff[key], pct, key) 62 63 keys = sorted(diff.keys(), key=lambda x : diff[x], reverse = True) 64 65 for key in keys[:results_per_sign]: 66 print_key(key) 67 68 print "\n...\n" 69 70 for key in keys[len(keys)-results_per_sign:]: 71 print_key(key) 72
