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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 | # function names begin with '.' on 64-bit powerpc |
22 | if "." in name[1:]: name = "static." + name.split(".")[0] |
23 | sym[name] = sym.get(name, 0) + int(size, 16) |
24 | return sym |
25 | |
26 | old = getsizes(sys.argv[1]) |
27 | new = getsizes(sys.argv[2]) |
28 | grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 |
29 | delta, common = [], {} |
30 | |
31 | for a in old: |
32 | if a in new: |
33 | common[a] = 1 |
34 | |
35 | for name in old: |
36 | if name not in common: |
37 | remove += 1 |
38 | down += old[name] |
39 | delta.append((-old[name], name)) |
40 | |
41 | for name in new: |
42 | if name not in common: |
43 | add += 1 |
44 | up += new[name] |
45 | delta.append((new[name], name)) |
46 | |
47 | for name in common: |
48 | d = new.get(name, 0) - old.get(name, 0) |
49 | if d>0: grow, up = grow+1, up+d |
50 | if d<0: shrink, down = shrink+1, down-d |
51 | delta.append((d, name)) |
52 | |
53 | delta.sort() |
54 | delta.reverse() |
55 | |
56 | print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ |
57 | (add, remove, grow, shrink, up, -down, up-down) |
58 | print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") |
59 | for d, n in delta: |
60 | if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) |
61 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9