[Qemu-devel] [PATCH v9 3/3] migration: Add multifd test

[Juan Quintela <quintela@redhat.com>]

We set the x-multifd-page-count and x-multifd-channels.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 tests/migration-test.c | 48 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/tests/migration-test.c b/tests/migration-test.c
index 27a7c2dbf0..dab1f1705f 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -777,6 +777,53 @@ static void test_precopy_tcp(void)
     g_free(uri);
 }
 
+static void test_multifd_tcp(void)
+{
+    char *uri;
+    QTestState *from, *to;
+
+    test_migrate_start(&from, &to, "tcp:127.0.0.1:0", false);
+
+    /* 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(from, "downtime-limit", "1");
+    /* 1GB/s */
+    migrate_set_parameter(from, "max-bandwidth", "1000000000");
+
+    migrate_set_parameter(from, "x-multifd-channels", "4");
+    migrate_set_parameter(to, "x-multifd-channels", "4");
+
+    migrate_set_parameter(from, "x-multifd-page-count", "64");
+    migrate_set_parameter(to, "x-multifd-page-count", "64");
+
+    migrate_set_capability(from, "x-multifd", "true");
+    migrate_set_capability(to, "x-multifd", "true");
+    /* Wait for the first serial output from the source */
+    wait_for_serial("src_serial");
+
+    uri = migrate_get_socket_address(to, "socket-address");
+
+    migrate(from, uri);
+
+    wait_for_migration_pass(from);
+
+    /* 300ms it should converge */
+    migrate_set_parameter(from, "downtime-limit", "300");
+
+    if (!got_stop) {
+        qtest_qmp_eventwait(from, "STOP");
+    }
+    qtest_qmp_eventwait(to, "RESUME");
+
+    wait_for_serial("dest_serial");
+    wait_for_migration_complete(from);
+
+    test_migrate_end(from, to, true);
+}
+
 int main(int argc, char **argv)
 {
     char template[] = "/tmp/migration-test-XXXXXX";
@@ -802,6 +849,7 @@ int main(int argc, char **argv)
     qtest_add_func("/migration/precopy/unix", test_precopy_unix);
     qtest_add_func("/migration/precopy/tcp", test_precopy_tcp);
     qtest_add_func("/migration/xbzrle/unix", test_xbzrle_unix);
+    qtest_add_func("/migration/multifd/tcp", test_multifd_tcp);
 
     ret = g_test_run();
 
-- 
2.17.0