]>
git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - scripts/bloat-o-meter
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.
11 from signal
import signal
, SIGPIPE
, SIG_DFL
13 signal(SIGPIPE
, SIG_DFL
)
15 if len(sys
.argv
) != 3:
16 sys
.stderr
.write("usage: %s file1 file2\n" % sys
.argv
[0])
19 re_NUMBER
= re
.compile(r
'\.[0-9]+')
23 with os
.popen("nm --size-sort " + file) as f
:
25 size
, type, name
= line
.split()
26 if type in "tTdDbBrR":
27 # strip generated symbols
28 if name
.startswith("__mod_"): continue
29 if name
.startswith("SyS_"): continue
30 if name
.startswith("compat_SyS_"): continue
31 if name
== "linux_banner": continue
32 # statics and some other optimizations adds random .NUMBER
33 name
= re_NUMBER
.sub('', name
)
34 sym
[name
] = sym
.get(name
, 0) + int(size
, 16)
37 old
= getsizes(sys
.argv
[1])
38 new
= getsizes(sys
.argv
[2])
39 grow
, shrink
, add
, remove
, up
, down
= 0, 0, 0, 0, 0, 0
40 delta
, common
= [], {}
49 if name
not in common
:
52 delta
.append((-old
[name
], name
))
56 if name
not in common
:
59 delta
.append((new
[name
], name
))
62 d
= new
.get(name
, 0) - old
.get(name
, 0)
63 if d
>0: grow
, up
= grow
+1, up
+d
64 if d
<0: shrink
, down
= shrink
+1, down
-d
65 delta
.append((d
, name
))
70 print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
71 (add
, remove
, grow
, shrink
, up
, -down
, up
-down
))
72 print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
74 if d
: print("%-40s %7s %7s %+7d" % (n
, old
.get(n
,"-"), new
.get(n
,"-"), d
))
76 print("Total: Before=%d, After=%d, chg %+.2f%%" % \
77 (otot
, ntot
, (ntot
- otot
)*100.0/otot
))