[Qemu-devel] [PATCH v6 8/8] [RFH] tests: Add migration compress threads tests

[Juan Quintela <quintela@redhat.com>]

Yeap, it is still not working. trying to learn how to debug threads
for guests running from the testt hardness.

For some reason, compression is not working at the moment, test is
disabled until I found why.

Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 tests/migration-test.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/tests/migration-test.c b/tests/migration-test.c
index eba40812fc..38c6d281c7 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -785,6 +785,55 @@ static void test_multifd_tcp(void)
     test_migrate_end(from, to, true);
 }
 
+static void test_compress(const char *uri)
+{
+    QTestState *from, *to;
+
+    test_migrate_start(&from, &to, uri, 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, "compress-threads", "4");
+    migrate_set_parameter(to, "decompress-threads", "3");
+
+    migrate_set_capability(from, "compress", "true");
+    migrate_set_capability(to, "compress", "true");
+    /* Wait for the first serial output from the source */
+    wait_for_serial("src_serial");
+
+    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);
+}
+
+static void test_compress_unix(void)
+{
+    char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
+
+    test_compress(uri);
+    g_free(uri);
+}
+
 int main(int argc, char **argv)
 {
     char template[] = "/tmp/migration-test-XXXXXX";
@@ -811,6 +860,9 @@ int main(int argc, char **argv)
     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);
+    if (0) {
+        qtest_add_func("/migration/compress/unix", test_compress_unix);
+    }
 
     ret = g_test_run();
 
-- 
2.14.3