077 (5591B)
1 #!/usr/bin/env bash 2 # group: rw quick 3 # 4 # Test concurrent pread/pwrite 5 # 6 # Copyright (C) 2014 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 raw 41 _supported_proto generic 42 _supported_os Linux 43 44 CLUSTER_SIZE=4k 45 size=128M 46 47 _make_test_img $size 48 49 echo 50 echo "== Some concurrent requests involving RMW ==" 51 52 test_io() 53 { 54 echo "open -o driver=$IMGFMT,file.align=4k blkdebug::$TEST_IMG" 55 # A simple RMW request 56 cat <<EOF 57 aio_write -P 10 0x200 0x200 58 aio_flush 59 EOF 60 61 # Sequential RMW requests on the same physical sector 62 off=0x1000 63 for ev in "head" "after_head"; do 64 cat <<EOF 65 break pwritev_rmw_$ev A 66 aio_write -P 10 $((off + 0x200)) 0x200 67 wait_break A 68 aio_write -P 11 $((off + 0x400)) 0x200 69 sleep 100 70 resume A 71 aio_flush 72 EOF 73 off=$((off + 0x1000)) 74 done 75 76 # Chained dependencies 77 cat <<EOF 78 break pwritev_rmw_after_tail A 79 aio_write -P 10 0x5000 0x200 80 wait_break A 81 aio_write -P 11 0x5200 0x200 82 aio_write -P 12 0x5400 0x200 83 aio_write -P 13 0x5600 0x200 84 aio_write -P 14 0x5800 0x200 85 aio_write -P 15 0x5a00 0x200 86 aio_write -P 16 0x5c00 0x200 87 aio_write -P 17 0x5e00 0x200 88 sleep 100 89 resume A 90 aio_flush 91 EOF 92 93 # Overlapping multiple requests 94 cat <<EOF 95 break pwritev_rmw_after_tail A 96 aio_write -P 10 0x6000 0x200 97 wait_break A 98 break pwritev_rmw_after_head B 99 aio_write -P 10 0x7e00 0x200 100 wait_break B 101 aio_write -P 11 0x6800 0x1000 102 resume A 103 sleep 100 104 resume B 105 aio_flush 106 EOF 107 108 cat <<EOF 109 break pwritev_rmw_after_tail A 110 aio_write -P 10 0x8000 0x200 111 wait_break A 112 break pwritev_rmw_after_head B 113 aio_write -P 10 0x9e00 0x200 114 wait_break B 115 aio_write -P 11 0x8800 0x1000 116 resume B 117 sleep 100 118 resume A 119 aio_flush 120 EOF 121 122 cat <<EOF 123 break pwritev_rmw_after_tail A 124 aio_write -P 10 0xa000 0x200 125 wait_break A 126 aio_write -P 11 0xa800 0x1000 127 break pwritev_rmw_after_head B 128 aio_write -P 10 0xbe00 0x200 129 wait_break B 130 resume A 131 sleep 100 132 resume B 133 aio_flush 134 EOF 135 136 cat <<EOF 137 break pwritev_rmw_after_tail A 138 aio_write -P 10 0xc000 0x200 139 wait_break A 140 aio_write -P 11 0xc800 0x1000 141 break pwritev_rmw_after_head B 142 aio_write -P 10 0xde00 0x200 143 wait_break B 144 resume B 145 sleep 100 146 resume A 147 aio_flush 148 EOF 149 150 # Only RMW for the tail part 151 cat <<EOF 152 break pwritev_rmw_after_tail A 153 aio_write -P 10 0xe000 0x1800 154 wait_break A 155 aio_write -P 11 0xf000 0xc00 156 sleep 100 157 resume A 158 aio_flush 159 EOF 160 161 cat <<EOF 162 break pwritev A 163 aio_write -P 10 0x10000 0x800 164 wait_break A 165 break pwritev_rmw_after_tail B 166 aio_write -P 11 0x10000 0x400 167 break pwritev_done C 168 resume A 169 wait_break C 170 resume C 171 sleep 100 172 wait_break B 173 resume B 174 aio_flush 175 EOF 176 177 cat <<EOF 178 break pwritev A 179 aio_write -P 10 0x11000 0x800 180 wait_break A 181 aio_write -P 11 0x11000 0x1000 182 sleep 100 183 resume A 184 aio_flush 185 EOF 186 } 187 188 test_io | $QEMU_IO | _filter_qemu_io | \ 189 sed -e 's,[0-9/]* bytes at offset [0-9]*,XXX/XXX bytes at offset XXX,g' \ 190 -e 's/^[0-9]* \(bytes\|KiB\)/XXX bytes/' \ 191 -e '/Suspended/d' \ 192 -e '/blkdebug: Resuming request/d' 193 194 echo 195 echo "== Verify image content ==" 196 197 verify_io() 198 { 199 # A simple RMW request 200 echo read -P 0 0 0x200 201 echo read -P 10 0x200 0x200 202 echo read -P 0 0x400 0xc00 203 204 # Sequential RMW requests on the same physical sector 205 echo read -P 0 0x1000 0x200 206 echo read -P 10 0x1200 0x200 207 echo read -P 11 0x1400 0x200 208 echo read -P 0 0x1600 0xa00 209 210 echo read -P 0 0x2000 0x200 211 echo read -P 10 0x2200 0x200 212 echo read -P 11 0x2400 0x200 213 echo read -P 0 0x2600 0xa00 214 215 # Chained dependencies 216 echo read -P 10 0x5000 0x200 217 echo read -P 11 0x5200 0x200 218 echo read -P 12 0x5400 0x200 219 echo read -P 13 0x5600 0x200 220 echo read -P 14 0x5800 0x200 221 echo read -P 15 0x5a00 0x200 222 echo read -P 16 0x5c00 0x200 223 echo read -P 17 0x5e00 0x200 224 225 # Overlapping multiple requests 226 echo read -P 10 0x6000 0x200 227 echo read -P 0 0x6200 0x600 228 echo read -P 11 0x6800 0x1000 229 echo read -P 0 0x7800 0x600 230 echo read -P 10 0x7e00 0x200 231 232 echo read -P 10 0x8000 0x200 233 echo read -P 0 0x8200 0x600 234 echo read -P 11 0x8800 0x1000 235 echo read -P 0 0x9800 0x600 236 echo read -P 10 0x9e00 0x200 237 238 echo read -P 10 0xa000 0x200 239 echo read -P 0 0xa200 0x600 240 echo read -P 11 0xa800 0x1000 241 echo read -P 0 0xb800 0x600 242 echo read -P 10 0xbe00 0x200 243 244 echo read -P 10 0xc000 0x200 245 echo read -P 0 0xc200 0x600 246 echo read -P 11 0xc800 0x1000 247 echo read -P 0 0xd800 0x600 248 echo read -P 10 0xde00 0x200 249 250 # Only RMW for the tail part 251 echo read -P 10 0xe000 0x1000 252 echo read -P 11 0xf800 0x400 253 echo read -P 0 0xfc00 0x400 254 255 echo read -P 11 0x10000 0x400 256 echo read -P 10 0x10400 0x400 257 258 echo read -P 11 0x11800 0x800 259 } 260 261 verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io 262 263 _check_test_img 264 265 # success, all done 266 echo "*** done" 267 rm -f $seq.full 268 status=0