* [PATCH] scripts/bloat-o-meter: print percent change
@ 2016-05-13 7:21 Vineet Gupta
0 siblings, 0 replies; only message in thread
From: Vineet Gupta @ 2016-05-13 7:21 UTC (permalink / raw
To: linux-kernel; +Cc: Vineet Gupta, Andrew Morton, Josh Triplett, Michal Marek
This adds additional line of output (to end to reduce chances of breaking
any existing output parsers) which prints the tot 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%
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
scripts/bloat-o-meter | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 38b64f487315..0254f3ba0dba 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -32,18 +32,21 @@ old = getsizes(sys.argv[1])
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("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
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))
--
2.5.0
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2016-05-13 7:21 [PATCH] scripts/bloat-o-meter: print percent change Vineet Gupta
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