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d960600d MM |
1 | #!/usr/bin/python |
2 | # | |
3 | # Copyright 2004 Matt Mackall <mpm@selenic.com> | |
4 | # | |
5 | # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen | |
6 | # | |
7 | # This software may be used and distributed according to the terms | |
8 | # of the GNU General Public License, incorporated herein by reference. | |
9 | ||
10 | import sys, os, re | |
11 | ||
12 | if len(sys.argv) != 3: | |
13 | sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) | |
14 | sys.exit(-1) | |
15 | ||
16 | def getsizes(file): | |
17 | sym = {} | |
18 | for l in os.popen("nm --size-sort " + file).readlines(): | |
19 | size, type, name = l[:-1].split() | |
20 | if type in "tTdDbB": | |
21 | sym[name] = int(size, 16) | |
22 | return sym | |
23 | ||
24 | old = getsizes(sys.argv[1]) | |
25 | new = getsizes(sys.argv[2]) | |
26 | grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 | |
27 | delta, common = [], {} | |
28 | ||
29 | for a in old: | |
30 | if a in new: | |
31 | common[a] = 1 | |
32 | ||
33 | for name in old: | |
34 | if name not in common: | |
35 | remove += 1 | |
36 | down += old[name] | |
37 | delta.append((-old[name], name)) | |
38 | ||
39 | for name in new: | |
40 | if name not in common: | |
41 | add += 1 | |
42 | up += new[name] | |
43 | delta.append((new[name], name)) | |
44 | ||
45 | for name in common: | |
46 | d = new.get(name, 0) - old.get(name, 0) | |
47 | if d>0: grow, up = grow+1, up+d | |
48 | if d<0: shrink, down = shrink+1, down-d | |
49 | delta.append((d, name)) | |
50 | ||
51 | delta.sort() | |
52 | delta.reverse() | |
53 | ||
54 | print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ | |
55 | (add, remove, grow, shrink, up, -down, up-down) | |
56 | print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") | |
57 | for d, n in delta: | |
58 | if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) |