rocksdb cache adjustments

repertory/librepertory/src/utils/utils.cpp

@@ -19,6 +19,8 @@
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   SOFTWARE.
 */
+#include "rocksdb/table.h"
+
 #include "utils/utils.hpp"
 
 #include "app_config.hpp"
@@ -38,12 +40,9 @@ void calculate_allocation_size(bool directory, std::uint64_t file_size,
     return;
   }
 
-  if (file_size > allocation_size) {
-    allocation_size = file_size;
-  }
-
   allocation_size =
-      utils::divide_with_ceiling(allocation_size, WINFSP_ALLOCATION_UNIT) *
+      utils::divide_with_ceiling(std::max(file_size, allocation_size),
+                                 WINFSP_ALLOCATION_UNIT) *
       WINFSP_ALLOCATION_UNIT;
   allocation_meta_size = std::to_string(allocation_size);
 }
@@ -51,8 +50,8 @@ void calculate_allocation_size(bool directory, std::uint64_t file_size,
 auto create_rocksdb(
     const app_config &cfg, const std::string &name,
     const std::vector<rocksdb::ColumnFamilyDescriptor> &families,
-    std::vector<rocksdb::ColumnFamilyHandle *> &handles,
-    bool clear) -> std::unique_ptr<rocksdb::TransactionDB> {
+    std::vector<rocksdb::ColumnFamilyHandle *> &handles, bool clear)
+    -> std::unique_ptr<rocksdb::TransactionDB> {
   REPERTORY_USES_FUNCTION_NAME();
 
   auto db_dir = utils::path::combine(cfg.get_data_directory(), {"db"});
@@ -67,11 +66,18 @@ auto create_rocksdb(
                               "failed to remove " + name + " db|" + path);
   }
 
+  rocksdb::BlockBasedTableOptions table_options{};
+  table_options.block_cache =
+      rocksdb::NewLRUCache(2ULL * 1024ULL * 1024LL * 1024LL);
+  table_options.cache_index_and_filter_blocks = true;
+
   rocksdb::Options options{};
   options.create_if_missing = true;
   options.create_missing_column_families = true;
   options.db_log_dir = cfg.get_log_directory();
   options.keep_log_file_num = 10;
+  options.table_factory.reset(
+      rocksdb::NewBlockBasedTableFactory(table_options));
 
   rocksdb::TransactionDB *ptr{};
   auto status = rocksdb::TransactionDB::Open(