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scripts/bloat-o-meter: fix percent on <1% changes

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Python divisions are integer divisions unless at least one parameter is
a float.  The current bloat-o-meter fails to print sub-percentage
changes:

  Total: Before=10515408, After=10604060, chg 0.000000%

Force float division by using one float and pretty the print to two
significant decimals:

  Total: Before=10515408, After=10604060, chg +0.84%

Link: http://lkml.kernel.org/r/1465980311-23814-1-git-send-email-riku.voipio@linaro.org
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Riku Voipio 2016-07-26 15:21:20 -07:00 committed by Linus Torvalds
parent c965b105bf
commit 8cde0daf6c
1 changed files with 2 additions and 2 deletions
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scripts/bloat-o-meter
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@ -67,5 +67,5 @@ 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))
print("Total: Before=%d, After=%d, chg %+.2f%%" % \
(otot, ntot, (ntot - otot)*100.0/otot))