023

   1 #!/bin/bash
   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_proto generic
  45 _supported_os Linux
  46
  47 TEST_OFFSETS="0 4294967296"
  48 TEST_OPS="writev read write readv"
  49
  50 # Can't use 512 byte clusters, the tests use cluster halves
  51 CLUSTER_SIZES="1024 4096 16384 65536"
  52
  53 for CLUSTER_SIZE in $CLUSTER_SIZES; do
  54
  55     echo "Creating new image; cluster size: $CLUSTER_SIZE"
  56     echo
  57
  58     _make_test_img 8G
  59
  60     echo "Testing empty image"
  61     echo
  62
  63     for offset in $TEST_OFFSETS; do
  64         echo "At offset $offset:"
  65         for op in $TEST_OPS; do
  66             io_test $op $offset $CLUSTER_SIZE 3
  67         done
  68         _check_test_img
  69     done
  70
  71     echo "Compressing image"
  72     echo
  73
  74     mv $TEST_IMG $TEST_IMG.orig
  75     $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
  76
  77     echo "Testing compressed image"
  78     echo
  79
  80     for offset in $TEST_OFFSETS; do
  81         echo "With offset $offset:"
  82         for op in read readv; do
  83             io_test $op $offset $CLUSTER_SIZE 3
  84         done
  85         _check_test_img
  86     done
  87
  88     echo "Testing compressed image with odd offsets"
  89     echo
  90     for offset in $TEST_OFFSETS; do
  91         # Some odd offset (1 sector), so tests will write to areas occupied partly
  92         # by old (compressed) data and empty clusters
  93         offset=$((offset + 512))
  94         echo "With offset $offset:"
  95         for op in $TEST_OPS; do
  96             io_test $op $offset $CLUSTER_SIZE 3
  97         done
  98         _check_test_img
  99     done
 100
 101     echo "Creating another new image"
 102     echo
 103
 104     _make_test_img 8G
 105
 106     echo "More complex patterns"
 107     echo
 108
 109     for offset in $TEST_OFFSETS; do
 110         echo test2: With offset $offset
 111         io_test2 $offset $CLUSTER_SIZE 4
 112         _check_test_img
 113     done
 114
 115 done
 116
 117 # success, all done
 118 echo "*** done"
 119 rm -f $seq.full
 120 status=0