scripts/bloat-o-meter: print percent change
This adds an additional line of output (to reduce the chances of
breaking any existing output parsers) which prints the total size before
and after and the relative difference.
add/remove: 39/0 grow/shrink: 12408/55 up/down: 362227/-1430 (360797)
function old new delta
ext4_fill_super 10556 12590 +2034
_fpadd_parts - 1186 +1186
ntfs_fill_super 5340 6164 +824
...
...
__divdf3 752 386 -366
unlzma 3682 3274 -408
Total: Before=5023101, After=5383898, chg 7.000000%
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Link: http://lkml.kernel.org/r/1463124110-30314-1-git-send-email-vgupta@synopsys.com
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 38b64f4..0254f3b 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -32,18 +32,21 @@
new = getsizes(sys.argv[2])
grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
delta, common = [], {}
+otot, ntot = 0, 0
for a in old:
if a in new:
common[a] = 1
for name in old:
+ otot += old[name]
if name not in common:
remove += 1
down += old[name]
delta.append((-old[name], name))
for name in new:
+ ntot += new[name]
if name not in common:
add += 1
up += new[name]
@@ -63,3 +66,6 @@
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))
+
+print("Total: Before=%d, After=%d, chg %f%%" % \
+ (otot, ntot, (ntot - otot)*100/otot))