LXR qemu/tests/qemu-iotests/190

   1#!/usr/bin/env bash
   2# group: rw auto quick
   3#
   4# qemu-img measure sub-command tests on huge qcow2 files
   5#
   6# Copyright (C) 2017-2020 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
  23owner=eblake@redhat.com
  24
  25seq=`basename $0`
  26echo "QA output created by $seq"
  27
  28status=1    # failure is the default!
  29
  30_cleanup()
  31{
  32    _cleanup_test_img
  33    _rm_test_img "$TEST_IMG.converted"
  34}
  35trap "_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# See 178 for more extensive tests across more formats
  43_supported_fmt qcow2
  44_supported_proto file
  45# compat=0.10 does not support bitmaps
  46_unsupported_imgopts 'compat=0.10'
  47
  48echo "== Huge file without bitmaps =="
  49echo
  50
  51_make_test_img -o 'cluster_size=2M' 2T
  52
  53$QEMU_IMG measure -O raw -f qcow2 "$TEST_IMG"
  54$QEMU_IMG measure -O qcow2 -o cluster_size=64k -f qcow2 "$TEST_IMG"
  55$QEMU_IMG measure -O qcow2 -o cluster_size=2M -f qcow2 "$TEST_IMG"
  56
  57echo
  58echo "== Huge file with bitmaps =="
  59echo
  60
  61$QEMU_IMG bitmap --add --granularity 512 -f qcow2 "$TEST_IMG" b1
  62$QEMU_IMG bitmap --add -g 2M -f qcow2 "$TEST_IMG" b2
  63
  64# No bitmap without a source
  65$QEMU_IMG measure -O qcow2 --size 10M
  66# No bitmap output, since raw does not support it
  67$QEMU_IMG measure -O raw -f qcow2 "$TEST_IMG"
  68# No bitmap output, since no bitmaps on raw source. Munge required size, as
  69# some filesystems store the qcow2 file with less sparseness than others
  70$QEMU_IMG measure -O qcow2 -f raw "$TEST_IMG" |
  71    sed '/^required size:/ s/[0-9][0-9]*/SIZE/'
  72# No bitmap output, since v2 does not support it
  73$QEMU_IMG measure -O qcow2 -o compat=0.10 -f qcow2 "$TEST_IMG"
  74
  75# Compute expected output: bitmap clusters + bitmap tables + bitmaps directory
  76echo
  77val2T=$((2*1024*1024*1024*1024))
  78cluster=$((64*1024))
  79b1clusters=$(( (val2T/512/8 + cluster - 1) / cluster ))
  80b2clusters=$(( (val2T/2/1024/1024/8 + cluster - 1) / cluster ))
  81echo expected bitmap $((b1clusters * cluster +
  82                        (b1clusters * 8 + cluster - 1) / cluster * cluster +
  83                        b2clusters * cluster +
  84                        (b2clusters * 8 + cluster - 1) / cluster * cluster +
  85                        cluster))
  86$QEMU_IMG measure -O qcow2 -o cluster_size=64k -f qcow2 "$TEST_IMG"
  87
  88# Compute expected output: bitmap clusters + bitmap tables + bitmaps directory
  89echo
  90cluster=$((2*1024*1024))
  91b1clusters=$(( (val2T/512/8 + cluster - 1) / cluster ))
  92b2clusters=$(( (val2T/2/1024/1024/8 + cluster - 1) / cluster ))
  93echo expected bitmap $((b1clusters * cluster +
  94                        (b1clusters * 8 + cluster - 1) / cluster * cluster +
  95                        b2clusters * cluster +
  96                        (b2clusters * 8 + cluster - 1) / cluster * cluster +
  97                        cluster))
  98$QEMU_IMG measure --output=json -O qcow2 -o cluster_size=2M -f qcow2 "$TEST_IMG"
  99
 100# success, all done
 101echo "*** done"
 102rm -f $seq.full
 103status=0
 104