103cbc771e
Most of our Python unittest-style tests only support the file protocol. You can run them with any other protocol, but the test will simply ignore your choice and use file anyway. We should let them signal that they require the file protocol so they are skipped when you want to test some other protocol. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
120 lines
4.1 KiB
Python
Executable file
120 lines
4.1 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Tests for dirty bitmaps postcopy migration.
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#
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# Copyright (c) 2016-2017 Virtuozzo International GmbH. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import iotests
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import time
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from iotests import qemu_img
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disk_a = os.path.join(iotests.test_dir, 'disk_a')
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disk_b = os.path.join(iotests.test_dir, 'disk_b')
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size = '256G'
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fifo = os.path.join(iotests.test_dir, 'mig_fifo')
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class TestDirtyBitmapPostcopyMigration(iotests.QMPTestCase):
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def tearDown(self):
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self.vm_a.shutdown()
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self.vm_b.shutdown()
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os.remove(disk_a)
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os.remove(disk_b)
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os.remove(fifo)
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def setUp(self):
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os.mkfifo(fifo)
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qemu_img('create', '-f', iotests.imgfmt, disk_a, size)
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qemu_img('create', '-f', iotests.imgfmt, disk_b, size)
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self.vm_a = iotests.VM(path_suffix='a').add_drive(disk_a)
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self.vm_b = iotests.VM(path_suffix='b').add_drive(disk_b)
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self.vm_b.add_incoming("exec: cat '" + fifo + "'")
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self.vm_a.launch()
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self.vm_b.launch()
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def test_postcopy(self):
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write_size = 0x40000000
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granularity = 512
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chunk = 4096
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result = self.vm_a.qmp('block-dirty-bitmap-add', node='drive0',
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name='bitmap', granularity=granularity)
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self.assert_qmp(result, 'return', {});
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s = 0
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while s < write_size:
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self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
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s += 0x10000
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s = 0x8000
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while s < write_size:
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self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
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s += 0x10000
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result = self.vm_a.qmp('x-debug-block-dirty-bitmap-sha256',
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node='drive0', name='bitmap')
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sha256 = result['return']['sha256']
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result = self.vm_a.qmp('block-dirty-bitmap-clear', node='drive0',
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name='bitmap')
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self.assert_qmp(result, 'return', {});
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s = 0
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while s < write_size:
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self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
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s += 0x10000
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bitmaps_cap = {'capability': 'dirty-bitmaps', 'state': True}
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events_cap = {'capability': 'events', 'state': True}
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result = self.vm_a.qmp('migrate-set-capabilities',
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capabilities=[bitmaps_cap, events_cap])
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self.assert_qmp(result, 'return', {})
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result = self.vm_b.qmp('migrate-set-capabilities',
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capabilities=[bitmaps_cap])
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self.assert_qmp(result, 'return', {})
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result = self.vm_a.qmp('migrate', uri='exec:cat>' + fifo)
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self.assert_qmp(result, 'return', {})
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result = self.vm_a.qmp('migrate-start-postcopy')
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self.assert_qmp(result, 'return', {})
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while True:
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event = self.vm_a.event_wait('MIGRATION')
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if event['data']['status'] == 'completed':
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break
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s = 0x8000
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while s < write_size:
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self.vm_b.hmp_qemu_io('drive0', 'write %d %d' % (s, chunk))
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s += 0x10000
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result = self.vm_b.qmp('query-block');
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while len(result['return'][0]['dirty-bitmaps']) > 1:
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time.sleep(2)
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result = self.vm_b.qmp('query-block');
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result = self.vm_b.qmp('x-debug-block-dirty-bitmap-sha256',
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node='drive0', name='bitmap')
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self.assert_qmp(result, 'return/sha256', sha256);
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'], supported_cache_modes=['none'],
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supported_protocols=['file'])
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