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[lit] Print slowest test first when timing tests
author
Julian Lettner
<julian.lettner@apple.com>
Wed, 8 Apr 2020 01:18:33 +0000
(18:18 -0700)
committer
Julian Lettner
<julian.lettner@apple.com>
Wed, 8 Apr 2020 01:18:33 +0000
(18:18 -0700)
lit supports `--time-tests` which will report the 20 slowest tests and
print a nice histogram for test times. This change prints this list and
the histogram rows by decreasing test times. After all, we are most
interested in the slowest tests.
llvm/utils/lit/lit/util.py
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diff --git
a/llvm/utils/lit/lit/util.py
b/llvm/utils/lit/lit/util.py
index
ab51988
..
ac75f24
100644
(file)
--- a/
llvm/utils/lit/lit/util.py
+++ b/
llvm/utils/lit/lit/util.py
@@
-291,7
+291,7
@@
def printHistogram(items, title='Items'):
hr = '-' * (barW + 34)
print('\nSlowest %s:' % title)
print(hr)
- for name, value in
items[-20:]
:
+ for name, value in
reversed(items[-20:])
:
print('%.2fs: %s' % (value, name))
print('\n%s Times:' % title)
print(hr)
@@
-304,7
+304,7
@@
def printHistogram(items, title='Items'):
'Percentage'.center(barW),
'Count'.center(cDigits * 2 + 1)))
print(hr)
- for i, row in
enumerate(histo
):
+ for i, row in
reversed(list(enumerate(histo))
):
pct = float(len(row)) / len(items)
w = int(barW * pct)
print('[%*.*fs,%*.*fs) :: [%s%s] :: [%*d/%*d]' % (