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yaml
---
r: 17042
b: refs/heads/master
c: d960600
h: refs/heads/master
v: v3
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Matt Mackall authored and Linus Torvalds committed Jan 9, 2006
1 parent f23aeba commit 13ca000
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: e701e85b9f12af4dbe73b4299b541686ef6b1aa5
refs/heads/master: d960600df3ce3588571e2c1adf1f5f6d8ca9eb5a
58 changes: 58 additions & 0 deletions trunk/scripts/bloat-o-meter
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#!/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)

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