blob: 508f528b8125823bd49a15d9a29c61d5003f0ed5 [file] [log] [blame] [edit]
#!/usr/bin/python3
# Copyright Martin J. Bligh (mbligh@google.com)
# Released under the GPL, v2
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import os
import re
import sys
results_per_sign = 10
def parse_lines(filename):
results = []
start_key = 1
for line in open(filename).readlines():
try:
a = line.split()
key = ' '.join(a[start_key:])
count = int(a[0])
results.append((key, count))
except: # presumably a header line
if re.match(r'samples\s*%\s*app name\s*symbol name', line):
start_key = 2
elif re.match(r'samples\s*%\s*image name\s*app name\s*symbol name', line):
start_key = 3
return results
# Firstly, suck in both files.
orig = {}
new = {}
diff = {}
for (key, count) in parse_lines(sys.argv[1]):
# Oprofile seems to be ... erm ... broken. Keys can appear > once ;-(
if key in orig:
orig[key] += count
else:
orig[key] = count
if key in diff:
diff[key] -= count
else:
diff[key] = -count
for (key, count) in parse_lines(sys.argv[2]):
if key in new:
new[key] += count
else:
new[key] = count
if key in diff:
diff[key] += count
else:
diff[key] = count
if len(orig) < 2* results_per_sign or len(new) < 2 * results_per_sign:
sys.exit(1) # one of the files was blank?
# Now sort and print the diffs.
def print_key(key):
if key in orig and orig[key] > 0:
pct = (100 * diff[key]) / orig[key]
else:
pct = 0
print("%10d %6.1f%% %s" % (diff[key], pct, key))
keys = sorted(list(diff.keys()), key=lambda x: diff[x], reverse=True)
for key in keys[:results_per_sign]:
print_key(key)
print("\n...\n")
for key in keys[len(keys)-results_per_sign:]:
print_key(key)