#!/usr/bin/python
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# Copyright Martin J. Bligh (mbligh@google.com)
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# Released under the GPL, v2
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import os, sys, re
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results_per_sign = 10
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def parse_lines(filename):
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results = []
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start_key = 1
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for line in open(filename).readlines():
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try:
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a = line.split()
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key = ' '.join(a[start_key:])
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count = int(a[0])
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results.append((key, count))
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except: # presumably a header line
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if re.match(r'samples\s*%\s*app name\s*symbol name', line):
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start_key = 2
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elif re.match(r'samples\s*%\s*image name\s*app name\s*symbol name', line):
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start_key = 3
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return results
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# Firstly, suck in both files.
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orig = {}
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new = {}
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diff = {}
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for (key, count) in parse_lines(sys.argv[1]):
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# Oprofile seems to be ... erm ... broken. Keys can appear > once ;-(
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if orig.has_key(key):
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orig[key] += count
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else:
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orig[key] = count
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if diff.has_key(key):
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diff[key] -= count
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else:
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diff[key] = -count
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for (key, count) in parse_lines(sys.argv[2]):
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if new.has_key(key):
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new[key] += count
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else:
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new[key] = count
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if diff.has_key(key):
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diff[key] += count
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else:
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diff[key] = count
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if len(orig) < 2* results_per_sign or len(new) < 2 * results_per_sign:
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sys.exit(1) # one of the files was blank?
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# Now sort and print the diffs.
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def print_key(key):
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if orig.has_key(key) and orig[key] > 0:
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pct = (100 * diff[key]) / orig[key]
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else:
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pct = 0
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print "%10d %6.1f%% %s" % (diff[key], pct, key)
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keys = sorted(diff.keys(), key=lambda x : diff[x], reverse = True)
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for key in keys[:results_per_sign]:
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print_key(key)
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print "\n...\n"
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for key in keys[len(keys)-results_per_sign:]:
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print_key(key)
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