of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / scripts / bloat-o-meter
blob23e78dcd12bf721a88316a007ede27d3454c906a
1 #!/usr/bin/python
3 # Copyright 2004 Matt Mackall <mpm@selenic.com>
5 # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
7 # This software may be used and distributed according to the terms
8 # of the GNU General Public License, incorporated herein by reference.
10 import sys, os, re
12 if len(sys.argv) != 3:
13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
14 sys.exit(-1)
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 "tTdDbBrR":
21 # strip generated symbols
22 if name.startswith("__mod_"): continue
23 if name.startswith("SyS_"): continue
24 if name.startswith("compat_SyS_"): continue
25 if name == "linux_banner": continue
26 # statics and some other optimizations adds random .NUMBER
27 name = re.sub(r'\.[0-9]+', '', name)
28 sym[name] = sym.get(name, 0) + int(size, 16)
29 return sym
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 = [], {}
36 for a in old:
37 if a in new:
38 common[a] = 1
40 for name in old:
41 if name not in common:
42 remove += 1
43 down += old[name]
44 delta.append((-old[name], name))
46 for name in new:
47 if name not in common:
48 add += 1
49 up += new[name]
50 delta.append((new[name], name))
52 for name in common:
53 d = new.get(name, 0) - old.get(name, 0)
54 if d>0: grow, up = grow+1, up+d
55 if d<0: shrink, down = shrink+1, down-d
56 delta.append((d, name))
58 delta.sort()
59 delta.reverse()
61 print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
62 (add, remove, grow, shrink, up, -down, up-down)
63 print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
64 for d, n in delta:
65 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)