903cb1bf39
Use the program search path to find the Python 3 interpreter.
Patch created mechanically by running:
$ sed -i "s,^#\!/usr/bin/\(env\ \)\?python$,#\!/usr/bin/env python3," \
$(git grep -l 'if __name__.*__main__')
Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200130163232.10446-4-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
120 lines
4.1 KiB
Python
Executable file
120 lines
4.1 KiB
Python
Executable file
#!/usr/bin/env python3
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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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