diff options
| -rw-r--r-- | tests/qtest/migration-test.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index 95e45b5029..e6a2803e71 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -2791,6 +2791,8 @@ static void test_migrate_auto_converge(void) * so we need to decrease a bandwidth. */ const int64_t init_pct = 5, inc_pct = 25, max_pct = 95; + uint64_t prev_dirty_sync_cnt, dirty_sync_cnt; + int max_try_count, hit = 0; if (test_migrate_start(&from, &to, uri, &args)) { return; @@ -2827,6 +2829,36 @@ static void test_migrate_auto_converge(void) } while (true); /* The first percentage of throttling should be at least init_pct */ g_assert_cmpint(percentage, >=, init_pct); + + /* + * End the loop when the dirty sync count greater than 1. + */ + while ((dirty_sync_cnt = get_migration_pass(from)) < 2) { + usleep(1000 * 1000); + } + + prev_dirty_sync_cnt = dirty_sync_cnt; + + /* + * The RAMBlock dirty sync count must changes in 5 seconds, here we set + * the timeout to 10 seconds to ensure it changes. + * + * Note that migrate_ensure_non_converge set the max-bandwidth to 3MB/s, + * while the qtest mem is >= 100MB, one iteration takes at least 33s (100/3) + * to complete; this ensures that the RAMBlock dirty sync occurs. + */ + max_try_count = 10; + while (--max_try_count) { + dirty_sync_cnt = get_migration_pass(from); + if (dirty_sync_cnt != prev_dirty_sync_cnt) { + hit = 1; + break; + } + prev_dirty_sync_cnt = dirty_sync_cnt; + sleep(1); + } + g_assert_cmpint(hit, ==, 1); + /* Now, when we tested that throttling works, let it converge */ migrate_ensure_converge(from); |