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Linux/scripts/bloat-o-meter

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Diff markup

Differences between /scripts/bloat-o-meter (Version linux-6.11.5) and /scripts/bloat-o-meter (Version linux-4.4.302)


  1 #!/usr/bin/env python3                         !!   1 #!/usr/bin/python
  2 #                                                   2 #
  3 # Copyright 2004 Matt Mackall <mpm@selenic.com>      3 # Copyright 2004 Matt Mackall <mpm@selenic.com>
  4 #                                                   4 #
  5 # inspired by perl Bloat-O-Meter (c) 1997 by A      5 # inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen
  6 #                                                   6 #
  7 # This software may be used and distributed ac      7 # This software may be used and distributed according to the terms
  8 # of the GNU General Public License, incorpora      8 # of the GNU General Public License, incorporated herein by reference.
  9                                                     9 
 10 import sys, os, re, argparse                   !!  10 import sys, os, re
 11 from signal import signal, SIGPIPE, SIG_DFL    << 
 12                                                    11 
 13 signal(SIGPIPE, SIG_DFL)                       !!  12 if len(sys.argv) != 3:
                                                   >>  13     sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
                                                   >>  14     sys.exit(-1)
 14                                                    15 
 15 parser = argparse.ArgumentParser(description=" !!  16 def getsizes(file):
 16 group = parser.add_mutually_exclusive_group()  << 
 17 group.add_argument('-c', help='categorize outp << 
 18 group.add_argument('-d', help='Show delta of D << 
 19 group.add_argument('-t', help='Show delta of t << 
 20 parser.add_argument('-p', dest='prefix', help= << 
 21 parser.add_argument('file1', help='First file  << 
 22 parser.add_argument('file2', help='Second file << 
 23                                                << 
 24 args = parser.parse_args()                     << 
 25                                                << 
 26 re_NUMBER = re.compile(r'\.[0-9]+')            << 
 27                                                << 
 28 def getsizes(file, format):                    << 
 29     sym = {}                                       17     sym = {}
 30     nm = "nm"                                  !!  18     for l in os.popen("nm --size-sort " + file).readlines():
 31     if args.prefix:                            !!  19         size, type, name = l[:-1].split()
 32         nm = "{}nm".format(args.prefix)        !!  20         if type in "tTdDbBrR":
 33                                                !!  21             # strip generated symbols
 34     with os.popen("{} --size-sort {}".format(n !!  22             if name.startswith("__mod_"): continue
 35         for line in f:                         !!  23             if name.startswith("SyS_"): continue
 36             if line.startswith("\n") or ":" in !!  24             if name.startswith("compat_SyS_"): continue
 37                 continue                       !!  25             if name == "linux_banner": continue
 38             size, type, name = line.split()    !!  26             # statics and some other optimizations adds random .NUMBER
 39             if type in format:                 !!  27             name = re.sub(r'\.[0-9]+', '', name)
 40                 # strip generated symbols      !!  28             sym[name] = sym.get(name, 0) + int(size, 16)
 41                 if name.startswith("__mod_"):  << 
 42                 if name.startswith("__se_sys") << 
 43                 if name.startswith("__se_compa << 
 44                 if name.startswith("__addressa << 
 45                 if name == "linux_banner": con << 
 46                 if name == "vermagic": continu << 
 47                 # statics and some other optim << 
 48                 name = re_NUMBER.sub('', name) << 
 49                 sym[name] = sym.get(name, 0) + << 
 50     return sym                                     29     return sym
 51                                                    30 
 52 def calc(oldfile, newfile, format):            !!  31 old = getsizes(sys.argv[1])
 53     old = getsizes(oldfile, format)            !!  32 new = getsizes(sys.argv[2])
 54     new = getsizes(newfile, format)            !!  33 grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
 55     grow, shrink, add, remove, up, down = 0, 0 !!  34 delta, common = [], {}
 56     delta, common = [], {}                     !!  35 
 57     otot, ntot = 0, 0                          !!  36 for a in old:
 58                                                !!  37     if a in new:
 59     for a in old:                              !!  38         common[a] = 1
 60         if a in new:                           !!  39 
 61             common[a] = 1                      !!  40 for name in old:
 62                                                !!  41     if name not in common:
 63     for name in old:                           !!  42         remove += 1
 64         otot += old[name]                      !!  43         down += old[name]
 65         if name not in common:                 !!  44         delta.append((-old[name], name))
 66             remove += 1                        !!  45 
 67             down += old[name]                  !!  46 for name in new:
 68             delta.append((-old[name], name))   !!  47     if name not in common:
 69                                                !!  48         add += 1
 70     for name in new:                           !!  49         up += new[name]
 71         ntot += new[name]                      !!  50         delta.append((new[name], name))
 72         if name not in common:                 << 
 73             add += 1                           << 
 74             up += new[name]                    << 
 75             delta.append((new[name], name))    << 
 76                                                    51 
 77     for name in common:                        !!  52 for name in common:
 78         d = new.get(name, 0) - old.get(name, 0     53         d = new.get(name, 0) - old.get(name, 0)
 79         if d>0: grow, up = grow+1, up+d            54         if d>0: grow, up = grow+1, up+d
 80         if d<0: shrink, down = shrink+1, down-     55         if d<0: shrink, down = shrink+1, down-d
 81         delta.append((d, name))                    56         delta.append((d, name))
 82                                                    57 
 83     delta.sort(reverse=True)                   !!  58 delta.sort()
 84     return grow, shrink, add, remove, up, down !!  59 delta.reverse()
 85                                                    60 
 86 def print_result(symboltype, symbolformat):    !!  61 print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
 87     grow, shrink, add, remove, up, down, delta !!  62       (add, remove, grow, shrink, up, -down, up-down))
 88     calc(args.file1, args.file2, symbolformat) !!  63 print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
 89                                                !!  64 for d, n in delta:
 90     print("add/remove: %s/%s grow/shrink: %s/% !!  65     if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
 91           (add, remove, grow, shrink, up, -dow << 
 92     print("%-40s %7s %7s %+7s" % (symboltype,  << 
 93     for d, n in delta:                         << 
 94         if d: print("%-40s %7s %7s %+7d" % (n, << 
 95                                                << 
 96     if otot:                                   << 
 97         percent = (ntot - otot) * 100.0 / otot << 
 98     else:                                      << 
 99         percent = 0                            << 
100     print("Total: Before=%d, After=%d, chg %+. << 
101                                                << 
102 if args.c:                                     << 
103     print_result("Function", "tTwW")           << 
104     print_result("Data", "dDbBvV")             << 
105     print_result("RO Data", "rR")              << 
106 elif args.d:                                   << 
107     print_result("Data", "dDbBrRvV")           << 
108 elif args.t:                                   << 
109     print_result("Function", "tTwW")           << 
110 else:                                          << 
111     print_result("Function", "tTdDbBrRvVwW")   << 
                                                      

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