diff --git a/leveldb/leveldb.properties b/leveldb/leveldb.properties
index a110ff34..2e40aacf 100644
--- a/leveldb/leveldb.properties
+++ b/leveldb/leveldb.properties
@@ -1,12 +1,18 @@
+#defalut setting
 leveldb.dbname=/tmp/ycsb-leveldb
 leveldb.format=single
 leveldb.destroy=false
 
-leveldb.write_buffer_size=67108864
-leveldb.max_file_size=67108864
+# 64MB 67108864
+# defalut :4MB 4194304
+leveldb.write_buffer_size=4194304
+
+# 32MB 33554432
+# defalut :2MB 2097152
+leveldb.max_file_size=2097152
 leveldb.max_open_files=1000
 leveldb.compression=snappy
-leveldb.cache_size=134217728
-leveldb.filter_bits=10
+leveldb.cache_size=-1
+leveldb.filter_bits=-1
 leveldb.block_size=4096
 leveldb.block_restart_interval=16