037 (3986B)
1 #!/usr/bin/env bash 2 # group: rw auto backing quick 3 # 4 # Test COW from backing files 5 # 6 # Copyright (C) 2012 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 $seq" 27 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 } 34 trap "_cleanup; exit \$status" 0 1 2 3 15 35 36 # get standard environment, filters and checks 37 . ./common.rc 38 . ./common.filter 39 40 _supported_fmt qcow qcow2 vmdk qed 41 _supported_proto file fuse 42 _unsupported_imgopts "subformat=monolithicFlat" \ 43 "subformat=twoGbMaxExtentFlat" \ 44 "subformat=twoGbMaxExtentSparse" \ 45 "subformat=streamOptimized" 46 47 CLUSTER_SIZE=4k 48 size=128M 49 50 echo 51 echo "== creating backing file for COW tests ==" 52 53 TEST_IMG_SAVE="$TEST_IMG" 54 TEST_IMG="$TEST_IMG.base" 55 56 _make_test_img $size 57 58 backing_io() 59 { 60 local offset=$1 61 local sectors=$2 62 local op=$3 63 local pattern=0 64 local cur_sec=0 65 66 for ((i=0;i<=$((sectors - 1));i++)); do 67 cur_sec=$((offset / 512 + i)) 68 pattern=$(( ( (cur_sec % 256) + (cur_sec / 256)) % 256 )) 69 70 echo "$op -P $pattern $((cur_sec * 512)) 512" 71 done 72 } 73 74 backing_io 0 256 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 75 76 TEST_IMG="$TEST_IMG_SAVE" 77 78 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G 79 80 echo 81 echo "== COW in a single cluster ==" 82 $QEMU_IO -c "write -P 0x77 0 2k" "$TEST_IMG" | _filter_qemu_io 83 $QEMU_IO -c "write -P 0x88 6k 2k" "$TEST_IMG" | _filter_qemu_io 84 $QEMU_IO -c "write -P 0x99 9k 2k" "$TEST_IMG" | _filter_qemu_io 85 86 $QEMU_IO -c "read -P 0x77 0 2k" "$TEST_IMG" | _filter_qemu_io 87 backing_io $((2 * 1024)) 8 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 88 $QEMU_IO -c "read -P 0x88 6k 2k" "$TEST_IMG" | _filter_qemu_io 89 backing_io $((8 * 1024)) 2 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 90 $QEMU_IO -c "read -P 0x99 9k 2k" "$TEST_IMG" | _filter_qemu_io 91 backing_io $((11 * 1024)) 2 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 92 93 echo 94 echo "== COW in two-cluster allocations ==" 95 $QEMU_IO -c "write -P 0x77 16k 6k" "$TEST_IMG" | _filter_qemu_io 96 $QEMU_IO -c "write -P 0x88 26k 6k" "$TEST_IMG" | _filter_qemu_io 97 $QEMU_IO -c "write -P 0x99 33k 5k" "$TEST_IMG" | _filter_qemu_io 98 99 $QEMU_IO -c "read -P 0x77 16k 6k" "$TEST_IMG" | _filter_qemu_io 100 backing_io $((22 * 1024)) 8 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 101 $QEMU_IO -c "read -P 0x88 26k 6k" "$TEST_IMG" | _filter_qemu_io 102 backing_io $((32 * 1024)) 2 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 103 $QEMU_IO -c "read -P 0x99 33k 5k" "$TEST_IMG" | _filter_qemu_io 104 backing_io $((38 * 1024)) 4 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 105 106 echo 107 echo "== COW in multi-cluster allocations ==" 108 $QEMU_IO -c "write -P 0x77 48k 15k" "$TEST_IMG" | _filter_qemu_io 109 $QEMU_IO -c "write -P 0x88 66k 14k" "$TEST_IMG" | _filter_qemu_io 110 $QEMU_IO -c "write -P 0x99 83k 15k" "$TEST_IMG" | _filter_qemu_io 111 112 $QEMU_IO -c "read -P 0x77 48k 15k" "$TEST_IMG" | _filter_qemu_io 113 backing_io $((63 * 1024)) 6 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 114 $QEMU_IO -c "read -P 0x88 66k 14k" "$TEST_IMG" | _filter_qemu_io 115 backing_io $((80 * 1024)) 6 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 116 $QEMU_IO -c "read -P 0x99 83k 15k" "$TEST_IMG" | _filter_qemu_io 117 backing_io $((98 * 1024)) 4 read | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 118 119 _check_test_img 120 121 # success, all done 122 echo "*** done" 123 rm -f $seq.full 124 status=0