paycheck: fix errors around percentage / formatting of zero sizes
This fixes two problems, both having to do with histogram generation:
* When the total number of elements is zero, paycheck would crash due to
a division by zero; further, even if the crash is fixed (returning,
say, None) the histogram will contain a meaningless value in
parenthesis, which we might as well drop. Both are fixed here.
* When some size (say, bytes) is zero, its formatter
(bytes-to-human-readable) returns None, which shows up as is in the
final report. This should be checked and avoided.
BUG=None
TEST=Crash fixed; None percentage/formatted value omitted.
Change-Id: I8bb5fbc47e1cde9dcbee7f7b96bcb63ef3a0935e
Reviewed-on: https://chromium-review.googlesource.com/172046
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>
Tested-by: Gilad Arnold <garnold@chromium.org>
3 files changed
tree: a969f9169908b5ea4c73c1608238f3d5244575eb
- scripts/