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author | Matt Mackall <mpm@selenic.com> | 2006-01-08 01:05:19 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-08 20:14:10 -0800 |
commit | d960600df3ce3588571e2c1adf1f5f6d8ca9eb5a (patch) | |
tree | 2d920b912b33f16b5cf8099331fcf421c83ae64b /scripts/bloat-o-meter | |
parent | e701e85b9f12af4dbe73b4299b541686ef6b1aa5 (diff) | |
download | kernel_samsung_espresso10-d960600df3ce3588571e2c1adf1f5f6d8ca9eb5a.zip kernel_samsung_espresso10-d960600df3ce3588571e2c1adf1f5f6d8ca9eb5a.tar.gz kernel_samsung_espresso10-d960600df3ce3588571e2c1adf1f5f6d8ca9eb5a.tar.bz2 |
[PATCH] tiny: Add bloat-o-meter to scripts
This is a rewrite of Andi Kleen's bloat-o-meter with sorting and reporting of
gainers/decliners. Sample output:
add/remove: 0/8 grow/shrink: 2/0 up/down: 88/-4424 (-4336)
function old new delta
__copy_to_user_ll 59 103 +44
__copy_from_user_ll 59 103 +44
fill_note 32 - -32
maydump 58 - -58
dump_seek 67 - -67
writenote 180 - -180
elf_dump_thread_status 274 - -274
fill_psinfo 308 - -308
fill_prstatus 466 - -466
elf_core_dump 3039 - -3039
The summary line says:
no functions added, 8 removed
two functions grew, none shrunk
we gained 88 bytes and lost 4424 (or -4336 net)
This work was sponsored in part by CE Linux Forum
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'scripts/bloat-o-meter')
-rw-r--r-- | scripts/bloat-o-meter | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter new file mode 100644 index 0000000..75f21d8 --- /dev/null +++ b/scripts/bloat-o-meter @@ -0,0 +1,58 @@ +#!/usr/bin/python +# +# Copyright 2004 Matt Mackall <mpm@selenic.com> +# +# inspired by perl Bloat-O-Meter (c) 1997 by Andi Kleen +# +# This software may be used and distributed according to the terms +# of the GNU General Public License, incorporated herein by reference. + +import sys, os, re + +if len(sys.argv) != 3: + sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0]) + sys.exit(-1) + +def getsizes(file): + sym = {} + for l in os.popen("nm --size-sort " + file).readlines(): + size, type, name = l[:-1].split() + if type in "tTdDbB": + sym[name] = int(size, 16) + return sym + +old = getsizes(sys.argv[1]) +new = getsizes(sys.argv[2]) +grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0 +delta, common = [], {} + +for a in old: + if a in new: + common[a] = 1 + +for name in old: + if name not in common: + remove += 1 + down += old[name] + delta.append((-old[name], name)) + +for name in new: + if name not in common: + add += 1 + up += new[name] + delta.append((new[name], name)) + +for name in common: + d = new.get(name, 0) - old.get(name, 0) + if d>0: grow, up = grow+1, up+d + if d<0: shrink, down = shrink+1, down-d + delta.append((d, name)) + +delta.sort() +delta.reverse() + +print "add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \ + (add, remove, grow, shrink, up, -down, up-down) +print "%-40s %7s %7s %+7s" % ("function", "old", "new", "delta") +for d, n in delta: + if d: print "%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d) |