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Thu, 23 Jan 2020 11:58:42 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Subject: [PATCH v3 04/21] migration-test: Make sure that multifd and cancel works Date: Thu, 23 Jan 2020 12:58:14 +0100 Message-Id: <20200123115831.36842-5-quintela@redhat.com> In-Reply-To: <20200123115831.36842-1-quintela@redhat.com> References: <20200123115831.36842-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: DkoFpFiLPVS2z_mbH79HAw-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eduardo Habkost , Juan Quintela , Markus Armbruster , "Dr. David Alan Gilbert" , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Test that this sequerce works: - launch source - launch target - start migration - cancel migration - relaunch target - do migration again Signed-off-by: Juan Quintela Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Juan Quintela --- - Wait for 1st trhead to move to cancelled before launching second migration - Add 'to2' parameter to diferentiate 1st and second target. - Use g_free() instead of free() --- tests/qtest/migration-test.c | 112 ++++++++++++++++++++++++++++++++++- 1 file changed, 111 insertions(+), 1 deletion(-) diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index b6a74a05ce..cf27ebbc9d 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -424,6 +424,14 @@ static void migrate_recover(QTestState *who, const cha= r *uri) qobject_unref(rsp); } =20 +static void migrate_cancel(QTestState *who) +{ + QDict *rsp; + + rsp =3D wait_command(who, "{ 'execute': 'migrate_cancel' }"); + qobject_unref(rsp); +} + static void migrate_set_capability(QTestState *who, const char *capability= , bool value) { @@ -456,6 +464,8 @@ static void migrate_postcopy_start(QTestState *from, QT= estState *to) typedef struct { bool hide_stderr; bool use_shmem; + /* only launch the target process */ + bool only_target; char *opts_source; char *opts_target; } MigrateStart; @@ -571,7 +581,9 @@ static int test_migrate_start(QTestState **from, QTestS= tate **to, arch_source, shmem_opts, args->opts_sourc= e, ignore_stderr); g_free(arch_source); - *from =3D qtest_init(cmd_source); + if (!args->only_target) { + *from =3D qtest_init(cmd_source); + } g_free(cmd_source); =20 cmd_target =3D g_strdup_printf("-accel kvm -accel tcg%s%s " @@ -1294,6 +1306,103 @@ static void test_multifd_tcp(void) g_free(uri); } =20 +/* + * This test does: + * source target + * migrate_incoming + * migrate + * migrate_cancel + * launch another target + * migrate + * + * And see that it works + */ + +static void test_multifd_tcp_cancel(void) +{ + MigrateStart *args =3D migrate_start_new(); + QTestState *from, *to, *to2; + QDict *rsp; + char *uri; + + args->hide_stderr =3D true; + + if (test_migrate_start(&from, &to, "defer", args)) { + return; + } + + /* + * We want to pick a speed slow enough that the test completes + * quickly, but that it doesn't complete precopy even on a slow + * machine, so also set the downtime. + */ + /* 1 ms should make it not converge*/ + migrate_set_parameter_int(from, "downtime-limit", 1); + /* 300MB/s */ + migrate_set_parameter_int(from, "max-bandwidth", 30000000); + + migrate_set_parameter_int(from, "multifd-channels", 16); + migrate_set_parameter_int(to, "multifd-channels", 16); + + migrate_set_capability(from, "multifd", "true"); + migrate_set_capability(to, "multifd", "true"); + + /* Start incoming migration from the 1st socket */ + rsp =3D wait_command(to, "{ 'execute': 'migrate-incoming'," + " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}")= ; + qobject_unref(rsp); + + /* Wait for the first serial output from the source */ + wait_for_serial("src_serial"); + + uri =3D migrate_get_socket_address(to, "socket-address"); + + migrate_qmp(from, uri, "{}"); + + wait_for_migration_pass(from); + + migrate_cancel(from); + + args =3D migrate_start_new(); + args->only_target =3D true; + + if (test_migrate_start(&from, &to2, "defer", args)) { + return; + } + + migrate_set_parameter_int(to2, "multifd-channels", 16); + + migrate_set_capability(to2, "multifd", "true"); + + /* Start incoming migration from the 1st socket */ + rsp =3D wait_command(to2, "{ 'execute': 'migrate-incoming'," + " 'arguments': { 'uri': 'tcp:127.0.0.1:0' }}"= ); + qobject_unref(rsp); + + uri =3D migrate_get_socket_address(to2, "socket-address"); + + wait_for_migration_status(from, "cancelled", NULL); + + /* 300ms it should converge */ + migrate_set_parameter_int(from, "downtime-limit", 300); + /* 1GB/s */ + migrate_set_parameter_int(from, "max-bandwidth", 1000000000); + + migrate_qmp(from, uri, "{}"); + + wait_for_migration_pass(from); + + if (!got_stop) { + qtest_qmp_eventwait(from, "STOP"); + } + qtest_qmp_eventwait(to2, "RESUME"); + + wait_for_serial("dest_serial"); + wait_for_migration_complete(from); + test_migrate_end(from, to2, true); + g_free(uri); +} + int main(int argc, char **argv) { char template[] =3D "/tmp/migration-test-XXXXXX"; @@ -1359,6 +1468,7 @@ int main(int argc, char **argv) =20 qtest_add_func("/migration/auto_converge", test_migrate_auto_converge)= ; qtest_add_func("/migration/multifd/tcp", test_multifd_tcp); + qtest_add_func("/migration/multifd/tcp/cancel", test_multifd_tcp_cance= l); =20 ret =3D g_test_run(); =20 --=20 2.24.1