9dd003a998
We are going to drop group file. Define group in tests as a preparatory
step.
The patch is generated by
cd tests/qemu-iotests
grep '^[0-9]\{3\} ' group | while read line; do
file=$(awk '{print $1}' <<< "$line");
groups=$(sed -e 's/^... //' <<< "$line");
awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
cat tmp > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
163 lines
6.1 KiB
Python
Executable File
163 lines
6.1 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# group: quick
|
|
#
|
|
# Test bitmap merges.
|
|
#
|
|
# Copyright (c) 2018 John Snow for Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# owner=jsnow@redhat.com
|
|
|
|
import iotests
|
|
from iotests import log
|
|
|
|
iotests.script_initialize(supported_fmts=['generic'])
|
|
size = 64 * 1024 * 1024
|
|
granularity = 64 * 1024
|
|
|
|
patterns = [("0x5d", "0", "64k"),
|
|
("0xd5", "1M", "64k"),
|
|
("0xdc", "32M", "64k"),
|
|
("0xcd", "0x3ff0000", "64k")] # 64M - 64K
|
|
|
|
overwrite = [("0xab", "0", "64k"), # Full overwrite
|
|
("0xad", "0x00f8000", "64k"), # Partial-left (1M-32K)
|
|
("0x1d", "0x2008000", "64k"), # Partial-right (32M+32K)
|
|
("0xea", "0x3fe0000", "64k")] # Adjacent-left (64M - 128K)
|
|
|
|
def query_bitmaps(vm):
|
|
res = vm.qmp("query-block")
|
|
return { "bitmaps": { device['device']: device.get('dirty-bitmaps', []) for
|
|
device in res['return'] } }
|
|
|
|
with iotests.FilePath('img') as img_path, \
|
|
iotests.VM() as vm:
|
|
|
|
log('--- Preparing image & VM ---\n')
|
|
iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size))
|
|
vm.add_drive(img_path)
|
|
vm.launch()
|
|
|
|
log('\n--- Adding preliminary bitmaps A & B ---\n')
|
|
vm.qmp_log("block-dirty-bitmap-add", node="drive0",
|
|
name="bitmapA", granularity=granularity)
|
|
vm.qmp_log("block-dirty-bitmap-add", node="drive0",
|
|
name="bitmapB", granularity=granularity)
|
|
|
|
# Dirties 4 clusters. count=262144
|
|
log('\n--- Emulating writes ---\n')
|
|
for p in patterns:
|
|
cmd = "write -P%s %s %s" % p
|
|
log(cmd)
|
|
log(vm.hmp_qemu_io("drive0", cmd))
|
|
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
log('\n--- Submitting & Aborting Transaction ---\n')
|
|
vm.qmp_log("transaction", indent=2, actions=[
|
|
{ "type": "block-dirty-bitmap-disable",
|
|
"data": { "node": "drive0", "name": "bitmapB" }},
|
|
{ "type": "block-dirty-bitmap-add",
|
|
"data": { "node": "drive0", "name": "bitmapC",
|
|
"granularity": granularity }},
|
|
{ "type": "block-dirty-bitmap-clear",
|
|
"data": { "node": "drive0", "name": "bitmapA" }},
|
|
{ "type": "abort", "data": {}}
|
|
])
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
log('\n--- Disabling B & Adding C ---\n')
|
|
vm.qmp_log("transaction", indent=2, actions=[
|
|
{ "type": "block-dirty-bitmap-disable",
|
|
"data": { "node": "drive0", "name": "bitmapB" }},
|
|
{ "type": "block-dirty-bitmap-add",
|
|
"data": { "node": "drive0", "name": "bitmapC",
|
|
"granularity": granularity }},
|
|
# Purely extraneous, but test that it works:
|
|
{ "type": "block-dirty-bitmap-disable",
|
|
"data": { "node": "drive0", "name": "bitmapC" }},
|
|
{ "type": "block-dirty-bitmap-enable",
|
|
"data": { "node": "drive0", "name": "bitmapC" }},
|
|
])
|
|
|
|
log('\n--- Emulating further writes ---\n')
|
|
# Dirties 6 clusters, 3 of which are new in contrast to "A".
|
|
# A = 64 * 1024 * (4 + 3) = 458752
|
|
# C = 64 * 1024 * 6 = 393216
|
|
for p in overwrite:
|
|
cmd = "write -P%s %s %s" % p
|
|
log(cmd)
|
|
log(vm.hmp_qemu_io("drive0", cmd))
|
|
|
|
log('\n--- Disabling A & C ---\n')
|
|
vm.qmp_log("transaction", indent=2, actions=[
|
|
{ "type": "block-dirty-bitmap-disable",
|
|
"data": { "node": "drive0", "name": "bitmapA" }},
|
|
{ "type": "block-dirty-bitmap-disable",
|
|
"data": { "node": "drive0", "name": "bitmapC" }}
|
|
])
|
|
|
|
# A: 7 clusters
|
|
# B: 4 clusters
|
|
# C: 6 clusters
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
log('\n--- Submitting & Aborting Merge Transaction ---\n')
|
|
vm.qmp_log("transaction", indent=2, actions=[
|
|
{ "type": "block-dirty-bitmap-add",
|
|
"data": { "node": "drive0", "name": "bitmapD",
|
|
"disabled": True, "granularity": granularity }},
|
|
{ "type": "block-dirty-bitmap-merge",
|
|
"data": { "node": "drive0", "target": "bitmapD",
|
|
"bitmaps": ["bitmapB", "bitmapC"] }},
|
|
{ "type": "abort", "data": {}}
|
|
])
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
log('\n--- Creating D as a merge of B & C ---\n')
|
|
# Good hygiene: create a disabled bitmap as a merge target.
|
|
vm.qmp_log("transaction", indent=2, actions=[
|
|
{ "type": "block-dirty-bitmap-add",
|
|
"data": { "node": "drive0", "name": "bitmapD",
|
|
"disabled": True, "granularity": granularity }},
|
|
{ "type": "block-dirty-bitmap-merge",
|
|
"data": { "node": "drive0", "target": "bitmapD",
|
|
"bitmaps": ["bitmapB", "bitmapC"] }}
|
|
])
|
|
|
|
# A and D should now both have 7 clusters apiece.
|
|
# B and C remain unchanged with 4 and 6 respectively.
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
# A and D should be equivalent.
|
|
# Some formats round the size of the disk, so don't print the checksums.
|
|
check_a = vm.qmp('x-debug-block-dirty-bitmap-sha256',
|
|
node="drive0", name="bitmapA")['return']['sha256']
|
|
check_d = vm.qmp('x-debug-block-dirty-bitmap-sha256',
|
|
node="drive0", name="bitmapD")['return']['sha256']
|
|
assert(check_a == check_d)
|
|
|
|
log('\n--- Removing bitmaps A, B, C, and D ---\n')
|
|
vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="bitmapA")
|
|
vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="bitmapB")
|
|
vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="bitmapC")
|
|
vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="bitmapD")
|
|
|
|
log('\n--- Final Query ---\n')
|
|
log(query_bitmaps(vm), indent=2)
|
|
|
|
log('\n--- Done ---\n')
|
|
vm.shutdown()
|