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