On 03.02.2017 11:10, Vladimir Sementsov-Ogievskiy wrote: > 02.02.2017 02:12, Max Reitz wrote: >> On 22.11.2016 18:54, Vladimir Sementsov-Ogievskiy wrote: >>> The test starts two vms (vm_a, vm_b), create dirty bitmap in >>> the first one, do several writes to corresponding device and >>> then migrate vm_a to vm_b with dirty bitmaps. >>> >>> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> >>> --- >>> tests/qemu-iotests/169 | 86 >>> ++++++++++++++++++++++++++++++++++++++++++++++ >>> tests/qemu-iotests/169.out | 5 +++ >>> tests/qemu-iotests/group | 1 + >>> 3 files changed, 92 insertions(+) >>> create mode 100755 tests/qemu-iotests/169 >>> create mode 100644 tests/qemu-iotests/169.out >>> >>> diff --git a/tests/qemu-iotests/169 b/tests/qemu-iotests/169 >>> new file mode 100755 >>> index 0000000..58b1ab1 >>> --- /dev/null >>> +++ b/tests/qemu-iotests/169 >>> @@ -0,0 +1,86 @@ >>> +#!/usr/bin/env python >>> +# >>> +# Tests for dirty bitmaps migration. >>> +# >>> +# Copyright (C) Vladimir Sementsov-Ogievskiy 2015-2016 >>> +# >>> +# 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') >>> +fifo = os.path.join(iotests.test_dir, 'mig_fifo') >>> + >>> +class TestDirtyBitmapMigration(iotests.QMPTestCase): >>> + >>> + def setUp(self): >>> + size = 0x400000000 # 1G >> I can already see someone on macOS complaining that this test eats their >> hard drive when running it for raw images... But we can still amend it >> once somebody complains. O:-) >> >> I think 1 GB is not overly large, but it's reasonable to use such a >> rather large value for this test. >> >>> + os.mkfifo(fifo) >>> + qemu_img('create', '-f', iotests.imgfmt, disk_a, str(size)) >>> + qemu_img('create', '-f', iotests.imgfmt, disk_b, str(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_migration("exec: cat " + fifo) >> I guess this will break if the path contains white space. Is there >> something we can do about that? >> >> (You don't need to protect against quotes or something, just white >> space.) >> >>> + self.vm_a.launch() >>> + self.vm_b.launch() >>> + >>> + def tearDown(self): >>> + self.vm_a.shutdown() >>> + self.vm_b.shutdown() >>> + os.remove(disk_a) >>> + os.remove(disk_b) >>> + os.remove(fifo) >>> + >>> + def test_migration(self): >>> + granularity = 512 >>> + regions = [ >>> + { 'start': 0, 'count': 0x100000 }, >>> + { 'start': 0x100000000, 'count': 0x200000 }, >>> + { 'start': 0x399900000, 'count': 0x100000 } >>> + ] >>> + >>> + result = self.vm_a.qmp('block-dirty-bitmap-add', node='drive0', >>> + name='bitmap', granularity=granularity) >>> + self.assert_qmp(result, 'return', {}); >>> + >>> + for r in regions: >>> + self.vm_a.hmp_qemu_io('drive0', >> This line isn't aligned to four spaces. >> >> With that fixed, and if you deem fixing the white space issue too >> complicated: > > may be, just add quotes, like > > self.vm_b.add_incoming_migration("exec: cat '" + fifo + "'")
Yep, that would be fine with me. Max > > > ? > >> >> Reviewed-by: Max Reitz <mre...@redhat.com> >> >>> + 'write %d %d' % (r['start'], >>> r['count'])) >>> + >>> + result = self.vm_a.qmp('x-debug-block-dirty-bitmap-sha256', >>> + node='drive0', name='bitmap') >>> + sha256 = result['return']['sha256'] >>> + >>> + result = self.vm_a.qmp('migrate-set-capabilities', >>> + capabilities=[{'capability': >>> 'dirty-bitmaps', >>> + 'state': True}]) >>> + self.assert_qmp(result, 'return', {}) >>> + >>> + result = self.vm_a.qmp('migrate', uri='exec:cat>' + fifo) >>> + self.assertNotEqual(self.vm_a.event_wait("STOP"), None) >>> + self.assertNotEqual(self.vm_b.event_wait("RESUME"), None) >>> + time.sleep(2) >>> + >>> + 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() >>> diff --git a/tests/qemu-iotests/169.out b/tests/qemu-iotests/169.out >>> new file mode 100644 >>> index 0000000..ae1213e >>> --- /dev/null >>> +++ b/tests/qemu-iotests/169.out >>> @@ -0,0 +1,5 @@ >>> +. >>> +---------------------------------------------------------------------- >>> +Ran 1 tests >>> + >>> +OK >>> diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group >>> index 866c1a0..5dc75ef 100644 >>> --- a/tests/qemu-iotests/group >>> +++ b/tests/qemu-iotests/group >>> @@ -162,6 +162,7 @@ >>> 159 rw auto quick >>> 160 rw auto quick >>> 162 auto quick >>> +169 rw auto quick >>> 170 rw auto quick >>> 171 rw auto quick >>> 172 auto >>> >> > >
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