023

   1 #!/bin/sh
   2 #
   3 # qcow2 pattern test with various cluster sizes
   4 #
   5 # Copyright (C) 2009 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 tmp=/tmp/$$
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  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 . ./common.pattern
  41
  42 # much of this could be generic for any format supporting compression.
  43 _supported_fmt qcow qcow2
  44 _supported_os Linux
  45
  46 TEST_OFFSETS="0 4294967296"
  47 TEST_OPS="writev read write readv"
  48
  49 # Can't use 512 byte clusters, the tests use cluster halves
  50 CLUSTER_SIZES="1024 4096 16384 65536"
  51
  52 for CLUSTER_SIZE in $CLUSTER_SIZES; do
  53
  54     echo "Creating new image; cluster size: $CLUSTER_SIZE"
  55     echo
  56
  57     _make_test_img 8G
  58
  59     echo "Testing empty image"
  60     echo
  61
  62     for offset in $TEST_OFFSETS; do
  63         echo "At offset $offset:"
  64         for op in $TEST_OPS; do
  65             io_test $op $offset $CLUSTER_SIZE 3
  66         done
  67         _check_test_img
  68     done
  69
  70     echo "Compressing image"
  71     echo
  72
  73     mv $TEST_IMG $TEST_IMG.orig
  74     $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
  75
  76     echo "Testing compressed image"
  77     echo
  78
  79     for offset in $TEST_OFFSETS; do
  80         echo "With offset $offset:"
  81         for op in read readv; do
  82             io_test $op $offset $CLUSTER_SIZE 3
  83         done
  84         _check_test_img
  85     done
  86
  87     echo "Testing compressed image with odd offsets"
  88     echo
  89     for offset in $TEST_OFFSETS; do
  90         # Some odd offset (1 sector), so tests will write to areas occupied partly
  91         # by old (compressed) data and empty clusters
  92         offset=$((offset + 512))
  93         echo "With offset $offset:"
  94         for op in $TEST_OPS; do
  95             io_test $op $offset $CLUSTER_SIZE 3
  96         done
  97         _check_test_img
  98     done
  99
 100     echo "Creating another new image"
 101     echo
 102
 103     _make_test_img 8G
 104
 105     echo "More complex patterns"
 106     echo
 107
 108     for offset in $TEST_OFFSETS; do
 109         echo test2: With offset $offset
 110         io_test2 $offset $CLUSTER_SIZE 4
 111         _check_test_img
 112     done
 113
 114 done
 115
 116 # success, all done
 117 echo "*** done"
 118 rm -f $seq.full
 119 status=0