Loading...
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
10import sys, os, re
11
12if len(sys.argv) != 3:
13 sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
14 sys.exit(-1)
15
16def 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[:6] == "__mod_": continue
23 # function names begin with '.' on 64-bit powerpc
24 if "." in name[1:]: name = "static." + name.split(".")[0]
25 sym[name] = sym.get(name, 0) + int(size, 16)
26 return sym
27
28old = getsizes(sys.argv[1])
29new = getsizes(sys.argv[2])
30grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
31delta, common = [], {}
32
33for a in old:
34 if a in new:
35 common[a] = 1
36
37for name in old:
38 if name not in common:
39 remove += 1
40 down += old[name]
41 delta.append((-old[name], name))
42
43for name in new:
44 if name not in common:
45 add += 1
46 up += new[name]
47 delta.append((new[name], name))
48
49for name in common:
50 d = new.get(name, 0) - old.get(name, 0)
51 if d>0: grow, up = grow+1, up+d
52 if d<0: shrink, down = shrink+1, down-d
53 delta.append((d, name))
54
55delta.sort()
56delta.reverse()
57
58print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
59 (add, remove, grow, shrink, up, -down, up-down)
60print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta")
61for d, n in delta:
62 if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d)
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
10import sys, os, re
11from signal import signal, SIGPIPE, SIG_DFL
12
13signal(SIGPIPE, SIG_DFL)
14
15if len(sys.argv) < 3:
16 sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
17 sys.stderr.write("The options are:\n")
18 sys.stderr.write("-c categorize output based on symbol type\n")
19 sys.stderr.write("-d Show delta of Data Section\n")
20 sys.stderr.write("-t Show delta of text Section\n")
21 sys.exit(-1)
22
23re_NUMBER = re.compile(r'\.[0-9]+')
24
25def getsizes(file, format):
26 sym = {}
27 with os.popen("nm --size-sort " + file) as f:
28 for line in f:
29 size, type, name = line.split()
30 if type in format:
31 # strip generated symbols
32 if name.startswith("__mod_"): continue
33 if name.startswith("__se_sys"): continue
34 if name.startswith("__se_compat_sys"): continue
35 if name.startswith("__addressable_"): continue
36 if name == "linux_banner": continue
37 # statics and some other optimizations adds random .NUMBER
38 name = re_NUMBER.sub('', name)
39 sym[name] = sym.get(name, 0) + int(size, 16)
40 return sym
41
42def calc(oldfile, newfile, format):
43 old = getsizes(oldfile, format)
44 new = getsizes(newfile, format)
45 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
46 delta, common = [], {}
47 otot, ntot = 0, 0
48
49 for a in old:
50 if a in new:
51 common[a] = 1
52
53 for name in old:
54 otot += old[name]
55 if name not in common:
56 remove += 1
57 down += old[name]
58 delta.append((-old[name], name))
59
60 for name in new:
61 ntot += new[name]
62 if name not in common:
63 add += 1
64 up += new[name]
65 delta.append((new[name], name))
66
67 for name in common:
68 d = new.get(name, 0) - old.get(name, 0)
69 if d>0: grow, up = grow+1, up+d
70 if d<0: shrink, down = shrink+1, down-d
71 delta.append((d, name))
72
73 delta.sort()
74 delta.reverse()
75 return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot
76
77def print_result(symboltype, symbolformat, argc):
78 grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
79 calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)
80
81 print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
82 (add, remove, grow, shrink, up, -down, up-down))
83 print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))
84 for d, n in delta:
85 if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
86
87 if otot:
88 percent = (ntot - otot) * 100.0 / otot
89 else:
90 percent = 0
91 print("Total: Before=%d, After=%d, chg %+.2f%%" % (otot, ntot, percent))
92
93if sys.argv[1] == "-c":
94 print_result("Function", "tT", 3)
95 print_result("Data", "dDbB", 3)
96 print_result("RO Data", "rR", 3)
97elif sys.argv[1] == "-d":
98 print_result("Data", "dDbBrR", 3)
99elif sys.argv[1] == "-t":
100 print_result("Function", "tT", 3)
101else:
102 print_result("Function", "tTdDbBrR", 2)