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tools: compare-failures script

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This is a simple script to compare failures across runs.

Given files containing stdout from several runs, each of which contains
a Failures: line, it will print a table of all failures for each run.
Test subdir names are abbreviated for compactness, i.e. generic->g.
For 7 results files named test 1 through test 7:

Failures:
g/075 g/082 g/209 g/233 g/270 g/388 x/004 x/073 x/076
-----------------------------------------------------
      g/082       g/233             x/004 x/073       test1
      g/082       g/233             x/004 x/073 x/076 test2
      g/082                         x/004 x/073 x/076 test3
      g/082                   g/388 x/004 x/073       test4
      g/082             g/270       x/004 x/073       test5
      g/082                         x/004 x/073       test6
g/075 g/082 g/209 g/233             x/004 x/073       test7

This lets us easily spot unique failures and outliers.

This could be enhanced to output CSV etc, but for now I think it's
helpful to visualize changes in failures across multiple runs.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Eric Sandeen
2017-01-13 08:56:15 -06:00
committed by Eryu Guan
parent acb8acd236
commit 2ad5167475
2 changed files with 70 additions and 0 deletions
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README
+3
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@@ -272,6 +272,9 @@ Pass/failure:
The elapsed time for the most recent pass for each test is kept
in "check.time".
The compare-failures script in tools/ may be used to compare failures
across multiple runs, given files containing stdout from those runs.
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SUBMITTING PATCHES
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tools/compare-failures
Executable
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@@ -0,0 +1,67 @@
#!/bin/bash
# Compare test failures across runs
#
# Takes multiple "results" files as arguments, comprised of the
# stdout from a ./check run, each containing a Failures: line.
#
# Outputs a table of failures for comparison across runs
#
#-----------------------------------------------------------------------
# Copyright (c) 2017 Red Hat, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#-----------------------------------------------------------------------
#
filter_names() {
sed -e s/btrfs/b/ \
-e s/cifs/c/g \
-e s/f2fs/f/g \
-e s/generic/g/g \
-e s/overlay/o/g \
-e s/shared/s/g \
-e s/udf/u/g \
-e s/xfs/x/g
}
# ALLFAILURES: A B C D E F G
# THESEFAILURES: A C D G
# We want to print the header (ALLFAILURES) and then
# if a run didn't fail a particular test, print spaces instead
# All tests that failed in any run, all on one line, unique
ALLFAILURES=`grep -h ^Failures: $* \
| tr " " "\n" \
| sort | uniq \
| filter_names \
| tr "\n" " " \
| sed -e "s/^Failures: //g"`
# Header
echo "Failures:"
echo $ALLFAILURES
echo $ALLFAILURES | sed -e "s/./-/g"
# Per-file failures
for FILE in $*; do
THESEFAILURES=`grep ^Failures: $FILE | filter_names`
for FAILURE in $ALLFAILURES; do
CELL=`echo $THESEFAILURES \
| grep -wo "$FAILURE" || echo $FAILURE | sed -e "s/./ /g"`
echo -n "$CELL "
done
echo $FILE
done