1#!/usr/bin/env bash 2# 3# qemu-img measure sub-command tests on huge qcow2 files 4# 5# Copyright (C) 2017-2020 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 22owner=eblake@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32 _rm_test_img "$TEST_IMG.converted" 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39. ./common.pattern 40 41# See 178 for more extensive tests across more formats 42_supported_fmt qcow2 43_supported_proto file 44# compat=0.10 does not support bitmaps 45_unsupported_imgopts 'compat=0.10' 46 47echo "== Huge file without bitmaps ==" 48echo 49 50_make_test_img -o 'cluster_size=2M' 2T 51 52$QEMU_IMG measure -O raw -f qcow2 "$TEST_IMG" 53$QEMU_IMG measure -O qcow2 -o cluster_size=64k -f qcow2 "$TEST_IMG" 54$QEMU_IMG measure -O qcow2 -o cluster_size=2M -f qcow2 "$TEST_IMG" 55 56echo 57echo "== Huge file with bitmaps ==" 58echo 59 60$QEMU_IMG bitmap --add --granularity 512 -f qcow2 "$TEST_IMG" b1 61$QEMU_IMG bitmap --add -g 2M -f qcow2 "$TEST_IMG" b2 62 63# No bitmap without a source 64$QEMU_IMG measure -O qcow2 --size 10M 65# No bitmap output, since raw does not support it 66$QEMU_IMG measure -O raw -f qcow2 "$TEST_IMG" 67# No bitmap output, since no bitmaps on raw source. Munge required size, as 68# some filesystems store the qcow2 file with less sparseness than others 69$QEMU_IMG measure -O qcow2 -f raw "$TEST_IMG" | 70 sed '/^required size:/ s/[0-9][0-9]*/SIZE/' 71# No bitmap output, since v2 does not support it 72$QEMU_IMG measure -O qcow2 -o compat=0.10 -f qcow2 "$TEST_IMG" 73 74# Compute expected output: bitmap clusters + bitmap tables + bitmaps directory 75echo 76val2T=$((2*1024*1024*1024*1024)) 77cluster=$((64*1024)) 78b1clusters=$(( (val2T/512/8 + cluster - 1) / cluster )) 79b2clusters=$(( (val2T/2/1024/1024/8 + cluster - 1) / cluster )) 80echo expected bitmap $((b1clusters * cluster + 81 (b1clusters * 8 + cluster - 1) / cluster * cluster + 82 b2clusters * cluster + 83 (b2clusters * 8 + cluster - 1) / cluster * cluster + 84 cluster)) 85$QEMU_IMG measure -O qcow2 -o cluster_size=64k -f qcow2 "$TEST_IMG" 86 87# Compute expected output: bitmap clusters + bitmap tables + bitmaps directory 88echo 89cluster=$((2*1024*1024)) 90b1clusters=$(( (val2T/512/8 + cluster - 1) / cluster )) 91b2clusters=$(( (val2T/2/1024/1024/8 + cluster - 1) / cluster )) 92echo expected bitmap $((b1clusters * cluster + 93 (b1clusters * 8 + cluster - 1) / cluster * cluster + 94 b2clusters * cluster + 95 (b2clusters * 8 + cluster - 1) / cluster * cluster + 96 cluster)) 97$QEMU_IMG measure --output=json -O qcow2 -o cluster_size=2M -f qcow2 "$TEST_IMG" 98 99# success, all done 100echo "*** done" 101rm -f $seq.full 102status=0 103