Disable fsync in DB tests with timeouts (#7380)

Summary:
Some tests were encountering 600 second timeout in CI, such as `./db_universal_compaction_test --gtest_filter=NumLevels/DBTestUniversalCompaction.UniversalCompactionTrivialMoveTest2/5`, `./db_properties_test --gtest_filter=DBPropertiesTest.AggregatedTablePropertiesAtLevel`, and `./db_basic_test --gtest_filter=DBBasicTest.MultiGetBatchedSortedMultiFile`.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7380

Test Plan:
- `./db_universal_compaction_test --gtest_filter=NumLevels/DBTestUniversalCompaction.UniversalCompactionTrivialMoveTest2/5`: 40 -> 3 seconds
- `./db_properties_test --gtest_filter=DBPropertiesTest.AggregatedTablePropertiesAtLevel`: 106 -> 1 second
- `./db_basic_test --gtest_filter=DBBasicTest.MultiGetBatchedSortedMultiFile`: 27 -> 1 second

Reviewed By: anand1976

Differential Revision: D23674570

Pulled By: ajkr

fbshipit-source-id: 4d4ca6a4e2d2e76fcf8b6f6cce91e0f98ba5050c

db/db_basic_test.cc

@@ -28,7 +28,7 @@ namespace ROCKSDB_NAMESPACE {
 
 class DBBasicTest : public DBTestBase {
  public:
-  DBBasicTest() : DBTestBase("/db_basic_test", /*env_do_fsync=*/true) {}
+  DBBasicTest() : DBTestBase("/db_basic_test", /*env_do_fsync=*/false) {}
 };
 
 TEST_F(DBBasicTest, OpenWhenOpen) {
@@ -2391,7 +2391,7 @@ class DBBasicTestMultiGet : public DBTestBase {
   DBBasicTestMultiGet(std::string test_dir, int num_cfs, bool compressed_cache,
                       bool uncompressed_cache, bool _compression_enabled,
                       bool _fill_cache, uint32_t compression_parallel_threads)
-      : DBTestBase(test_dir, /*env_do_fsync=*/true) {
+      : DBTestBase(test_dir, /*env_do_fsync=*/false) {
     compression_enabled_ = _compression_enabled;
     fill_cache_ = _fill_cache;
 

db/db_properties_test.cc

@@ -27,7 +27,7 @@ namespace ROCKSDB_NAMESPACE {
 class DBPropertiesTest : public DBTestBase {
  public:
   DBPropertiesTest()
-      : DBTestBase("/db_properties_test", /*env_do_fsync=*/true) {}
+      : DBTestBase("/db_properties_test", /*env_do_fsync=*/false) {}
 };
 
 #ifndef ROCKSDB_LITE

db/db_universal_compaction_test.cc

@@ -27,7 +27,7 @@ class DBTestUniversalCompactionBase
       public ::testing::WithParamInterface<std::tuple<int, bool>> {
  public:
   explicit DBTestUniversalCompactionBase(const std::string& path)
-      : DBTestBase(path, /*env_do_fsync=*/true) {}
+      : DBTestBase(path, /*env_do_fsync=*/false) {}
   void SetUp() override {
     num_levels_ = std::get<0>(GetParam());
     exclusive_manual_compaction_ = std::get<1>(GetParam());
@@ -45,7 +45,7 @@ class DBTestUniversalCompaction : public DBTestUniversalCompactionBase {
 class DBTestUniversalCompaction2 : public DBTestBase {
  public:
   DBTestUniversalCompaction2()
-      : DBTestBase("/db_universal_compaction_test2", /*env_do_fsync=*/true) {}
+      : DBTestBase("/db_universal_compaction_test2", /*env_do_fsync=*/false) {}
 };
 
 namespace {