| 1 | #!/usr/bin/env bash |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Test qcow2 preallocation |
| 5 | # |
| 6 | # Copyright (C) 2019 Red Hat, Inc. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | # |
| 21 | |
| 22 | # creator |
| 23 | owner=kwolf@redhat.com |
| 24 | |
| 25 | seq=$(basename $0) |
| 26 | echo "QA output created by $seq" |
| 27 | |
| 28 | status=1 # failure is the default! |
| 29 | |
| 30 | _cleanup() |
| 31 | { |
| 32 | _cleanup_test_img |
| 33 | _rm_test_img "$TEST_IMG.data" |
| 34 | } |
| 35 | trap "_cleanup; exit \$status" 0 1 2 3 15 |
| 36 | |
| 37 | # get standard environment, filters and checks |
| 38 | . ./common.rc |
| 39 | . ./common.filter |
| 40 | |
| 41 | _supported_fmt qcow2 |
| 42 | _supported_proto file |
| 43 | _supported_os Linux |
| 44 | # External data files do not work with compat=0.10, and because there |
| 45 | # is an explicit case for external data files here, we cannot allow |
| 46 | # the user to specify whether to use one |
| 47 | _unsupported_imgopts 'compat=0.10' data_file |
| 48 | |
| 49 | for mode in off metadata falloc full; do |
| 50 | |
| 51 | echo |
| 52 | echo "=== preallocation=$mode ===" |
| 53 | echo |
| 54 | |
| 55 | _make_test_img -o "preallocation=$mode,extent_size_hint=0" 64M |
| 56 | |
| 57 | printf "File size: " |
| 58 | du -b $TEST_IMG | cut -f1 |
| 59 | |
| 60 | # Can't use precise numbers here because they differ between filesystems |
| 61 | printf "Disk usage: " |
| 62 | [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" |
| 63 | |
| 64 | done |
| 65 | |
| 66 | for mode in off metadata falloc full; do |
| 67 | |
| 68 | echo |
| 69 | echo "=== External data file: preallocation=$mode ===" |
| 70 | echo |
| 71 | |
| 72 | _make_test_img \ |
| 73 | -o "data_file=$TEST_IMG.data,preallocation=$mode,extent_size_hint=0" 64M |
| 74 | |
| 75 | echo -n "qcow2 file size: " |
| 76 | du -b $TEST_IMG | cut -f1 |
| 77 | echo -n "data file size: " |
| 78 | du -b $TEST_IMG.data | cut -f1 |
| 79 | |
| 80 | # Can't use precise numbers here because they differ between filesystems |
| 81 | echo -n "qcow2 disk usage: " |
| 82 | [ $(du -B1 $TEST_IMG | cut -f1) -lt 1048576 ] && echo "low" || echo "high" |
| 83 | echo -n "data disk usage: " |
| 84 | [ $(du -B1 $TEST_IMG.data | cut -f1) -lt 2097152 ] && echo "low" || echo "high" |
| 85 | |
| 86 | done |
| 87 | |
| 88 | # success, all done |
| 89 | echo "*** done" |
| 90 | rm -f $seq.full |
| 91 | status=0 |