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[Qemu-devel] [PULL 13/13] iotests: add dirty bitmap postcopy test
From: |
John Snow |
Subject: |
[Qemu-devel] [PULL 13/13] iotests: add dirty bitmap postcopy test |
Date: |
Tue, 13 Mar 2018 17:14:41 -0400 |
From: Vladimir Sementsov-Ogievskiy <address@hidden>
Test
- start two vms (vm_a, vm_b)
- in a
- do writes from set A
- do writes from set B
- fix bitmap sha256
- clear bitmap
- do writes from set A
- start migration
- than, in b
- wait vm start (postcopy should start)
- do writes from set B
- check bitmap sha256
The test should verify postcopy migration and then merging with delta
(changes in target, during postcopy process).
Reduce supported cache modes to only 'none', because with cache on time
from source.STOP to target.RESUME is unpredictable and we can fail with
timout while waiting for target.RESUME.
Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Message-id: address@hidden
---
tests/qemu-iotests/199 | 118 ++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/199.out | 5 ++
tests/qemu-iotests/group | 1 +
tests/qemu-iotests/iotests.py | 7 ++-
4 files changed, 130 insertions(+), 1 deletion(-)
create mode 100755 tests/qemu-iotests/199
create mode 100644 tests/qemu-iotests/199.out
diff --git a/tests/qemu-iotests/199 b/tests/qemu-iotests/199
new file mode 100755
index 0000000000..651e8df5d9
--- /dev/null
+++ b/tests/qemu-iotests/199
@@ -0,0 +1,118 @@
+#!/usr/bin/env python
+#
+# Tests for dirty bitmaps postcopy migration.
+#
+# Copyright (c) 2016-2017 Virtuozzo International GmbH. All rights reserved.
+#
+# 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/>.
+#
+
+import os
+import iotests
+import time
+from iotests import qemu_img
+
+disk_a = os.path.join(iotests.test_dir, 'disk_a')
+disk_b = os.path.join(iotests.test_dir, 'disk_b')
+size = '256G'
+fifo = os.path.join(iotests.test_dir, 'mig_fifo')
+
+class TestDirtyBitmapPostcopyMigration(iotests.QMPTestCase):
+
+ def tearDown(self):
+ self.vm_a.shutdown()
+ self.vm_b.shutdown()
+ os.remove(disk_a)
+ os.remove(disk_b)
+ os.remove(fifo)
+
+ def setUp(self):
+ os.mkfifo(fifo)
+ qemu_img('create', '-f', iotests.imgfmt, disk_a, size)
+ qemu_img('create', '-f', iotests.imgfmt, disk_b, size)
+ self.vm_a = iotests.VM(path_suffix='a').add_drive(disk_a)
+ self.vm_b = iotests.VM(path_suffix='b').add_drive(disk_b)
+ self.vm_b.add_incoming("exec: cat '" + fifo + "'")
+ self.vm_a.launch()
+ self.vm_b.launch()
+
+ def test_postcopy(self):
+ write_size = 0x40000000
+ granularity = 512
+ chunk = 4096
+
+ result = self.vm_a.qmp('block-dirty-bitmap-add', node='drive0',
+ name='bitmap', granularity=granularity)
+ self.assert_qmp(result, 'return', {});
+
+ s = 0
+ while s < write_size:
+ self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
+ s += 0x10000
+ s = 0x8000
+ while s < write_size:
+ self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
+ s += 0x10000
+
+ result = self.vm_a.qmp('x-debug-block-dirty-bitmap-sha256',
+ node='drive0', name='bitmap')
+ sha256 = result['return']['sha256']
+
+ result = self.vm_a.qmp('block-dirty-bitmap-clear', node='drive0',
+ name='bitmap')
+ self.assert_qmp(result, 'return', {});
+ s = 0
+ while s < write_size:
+ self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
+ s += 0x10000
+
+ bitmaps_cap = {'capability': 'dirty-bitmaps', 'state': True}
+ events_cap = {'capability': 'events', 'state': True}
+
+ result = self.vm_a.qmp('migrate-set-capabilities',
+ capabilities=[bitmaps_cap, events_cap])
+ self.assert_qmp(result, 'return', {})
+
+ result = self.vm_b.qmp('migrate-set-capabilities',
+ capabilities=[bitmaps_cap])
+ self.assert_qmp(result, 'return', {})
+
+ result = self.vm_a.qmp('migrate', uri='exec:cat>' + fifo)
+ self.assert_qmp(result, 'return', {})
+
+ result = self.vm_a.qmp('migrate-start-postcopy')
+ self.assert_qmp(result, 'return', {})
+
+ while True:
+ event = self.vm_a.event_wait('MIGRATION')
+ if event['data']['status'] == 'completed':
+ break
+
+ s = 0x8000
+ while s < write_size:
+ self.vm_b.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
+ s += 0x10000
+
+ result = self.vm_b.qmp('query-block');
+ while len(result['return'][0]['dirty-bitmaps']) > 1:
+ time.sleep(2)
+ result = self.vm_b.qmp('query-block');
+
+ result = self.vm_b.qmp('x-debug-block-dirty-bitmap-sha256',
+ node='drive0', name='bitmap')
+
+ self.assert_qmp(result, 'return/sha256', sha256);
+
+if __name__ == '__main__':
+ iotests.main(supported_fmts=['qcow2'], supported_cache_modes=['none'])
diff --git a/tests/qemu-iotests/199.out b/tests/qemu-iotests/199.out
new file mode 100644
index 0000000000..ae1213e6f8
--- /dev/null
+++ b/tests/qemu-iotests/199.out
@@ -0,0 +1,5 @@
+.
+----------------------------------------------------------------------
+Ran 1 tests
+
+OK
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index c7dc59897e..e7747fea3d 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -197,6 +197,7 @@
196 rw auto quick
197 rw auto quick
198 rw auto
+199 rw auto
200 rw auto
201 rw auto migration
202 rw auto quick
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 1bcc9ca57d..68b06c7d97 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -504,6 +504,10 @@ def verify_platform(supported_oses=['linux']):
if True not in [sys.platform.startswith(x) for x in supported_oses]:
notrun('not suitable for this OS: %s' % sys.platform)
+def verify_cache_mode(supported_cache_modes=[]):
+ if supported_cache_modes and (cachemode not in supported_cache_modes):
+ notrun('not suitable for this cache mode: %s' % cachemode)
+
def supports_quorum():
return 'quorum' in qemu_img_pipe('--help')
@@ -512,7 +516,7 @@ def verify_quorum():
if not supports_quorum():
notrun('quorum support missing')
-def main(supported_fmts=[], supported_oses=['linux']):
+def main(supported_fmts=[], supported_oses=['linux'],
supported_cache_modes=[]):
'''Run tests'''
global debug
@@ -529,6 +533,7 @@ def main(supported_fmts=[], supported_oses=['linux']):
verbosity = 1
verify_image_format(supported_fmts)
verify_platform(supported_oses)
+ verify_cache_mode(supported_cache_modes)
# We need to filter out the time taken from the output so that qemu-iotest
# can reliably diff the results against master output.
--
2.14.3
- [Qemu-devel] [PULL 10/13] migration: allow qmp command migrate-start-postcopy for any postcopy, (continued)
- [Qemu-devel] [PULL 10/13] migration: allow qmp command migrate-start-postcopy for any postcopy, John Snow, 2018/03/13
- [Qemu-devel] [PULL 03/13] block/dirty-bitmap: add _locked version of bdrv_reclaim_dirty_bitmap, John Snow, 2018/03/13
- [Qemu-devel] [PULL 08/13] migration/qemu-file: add qemu_put_counted_string(), John Snow, 2018/03/13
- [Qemu-devel] [PULL 09/13] migration: add is_active_iterate handler, John Snow, 2018/03/13
- [Qemu-devel] [PULL 05/13] migration: introduce postcopy-only pending, John Snow, 2018/03/13
- [Qemu-devel] [PULL 02/13] block/dirty-bitmap: fix locking in bdrv_reclaim_dirty_bitmap, John Snow, 2018/03/13
- [Qemu-devel] [PULL 01/13] block/dirty-bitmap: add bdrv_dirty_bitmap_enable_successor(), John Snow, 2018/03/13
- [Qemu-devel] [PULL 06/13] qapi: add dirty-bitmaps migration capability, John Snow, 2018/03/13
- [Qemu-devel] [PULL 07/13] migration: include migrate_dirty_bitmaps in migrate_postcopy, John Snow, 2018/03/13
- [Qemu-devel] [PULL 04/13] dirty-bitmap: add locked state, John Snow, 2018/03/13
- [Qemu-devel] [PULL 13/13] iotests: add dirty bitmap postcopy test,
John Snow <=
- [Qemu-devel] [PULL 12/13] iotests: add dirty bitmap migration test, John Snow, 2018/03/13
- [Qemu-devel] [PULL 11/13] migration: add postcopy migration of dirty bitmaps, John Snow, 2018/03/13
- Re: [Qemu-devel] [PULL 00/13] Bitmaps patches, no-reply, 2018/03/14
- Re: [Qemu-devel] [PULL 00/13] Bitmaps patches, Peter Maydell, 2018/03/16