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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() | |
c50e3f51 JD |
20 | if type in "tTdDbBrR": |
21 | # strip generated symbols | |
c2e182fa | 22 | if name.startswith("__mod_"): continue |
b25c2ff5 JT |
23 | if name.startswith("SyS_"): continue |
24 | if name.startswith("compat_SyS_"): continue | |
5a7b2d27 | 25 | if name == "linux_banner": continue |
21cf6e58 AK |
26 | # statics and some other optimizations adds random .NUMBER |
27 | name = re.sub(r'\.[0-9]+', '', name) | |
51849738 | 28 | sym[name] = sym.get(name, 0) + int(size, 16) |
d960600d MM |
29 | return sym |
30 | ||
31 | old = getsizes(sys.argv[1]) | |
32 | new = getsizes(sys.argv[2]) | |
33 | grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 | |
34 | delta, common = [], {} | |
b21e91c3 | 35 | otot, ntot = 0, 0 |
d960600d MM |
36 | |
37 | for a in old: | |
38 | if a in new: | |
39 | common[a] = 1 | |
40 | ||
41 | for name in old: | |
b21e91c3 | 42 | otot += old[name] |
d960600d MM |
43 | if name not in common: |
44 | remove += 1 | |
45 | down += old[name] | |
46 | delta.append((-old[name], name)) | |
47 | ||
48 | for name in new: | |
b21e91c3 | 49 | ntot += new[name] |
d960600d MM |
50 | if name not in common: |
51 | add += 1 | |
52 | up += new[name] | |
53 | delta.append((new[name], name)) | |
54 | ||
55 | for name in common: | |
56 | d = new.get(name, 0) - old.get(name, 0) | |
57 | if d>0: grow, up = grow+1, up+d | |
58 | if d<0: shrink, down = shrink+1, down-d | |
59 | delta.append((d, name)) | |
60 | ||
61 | delta.sort() | |
62 | delta.reverse() | |
63 | ||
72214a24 SS |
64 | print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ |
65 | (add, remove, grow, shrink, up, -down, up-down)) | |
66 | print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")) | |
d960600d | 67 | for d, n in delta: |
72214a24 | 68 | if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)) |
b21e91c3 | 69 | |
8cde0daf RV |
70 | print("Total: Before=%d, After=%d, chg %+.2f%%" % \ |
71 | (otot, ntot, (ntot - otot)*100.0/otot)) |