diff --git a/rocksdb/main.cpp b/rocksdb/main.cpp
index b7f799f..75a0be2 100644
--- a/rocksdb/main.cpp
+++ b/rocksdb/main.cpp
@@ -111,6 +111,10 @@ int main(int argc, char *argv[]) {
     rocksdb::ColumnFamilyOptions cfo{};
     cfo.enable_blob_files = true;
     cfo.min_blob_size = args.blob_size;
+    // rocksdb::BlockBasedTableOptions top{};
+    // top.use_delta_encoding = false;
+    // cfo.table_factory.reset(rocksdb::NewBlockBasedTableFactory(top));
+
     // use 1GB block cache
     auto cache = rocksdb::NewLRUCache(1 << 30);
     rocksdb::BlockBasedTableOptions table_options{};
@@ -250,6 +254,7 @@ int main(int argc, char *argv[]) {
                     delete kv;
                 }
             } else if (args.mode == "scan") {
+                // ropt.pin_data = true;
                 auto *iter = db->NewIterator(ropt);
                 iter->Seek(prefix);
                 size_t n = 0;
diff --git a/scripts/mace.sh b/scripts/mace.sh
index 28f7d91..78b98a0 100755
--- a/scripts/mace.sh
+++ b/scripts/mace.sh
@@ -2,8 +2,8 @@
 
 if [ "$#" -ne 1 ]
 then
-  printf "\033[m$0 path\033[0m\n"
-  exit 1
+    printf "\033[m$0 path\033[0m\n"
+    exit 1
 fi
 
 pushd .
@@ -13,6 +13,7 @@ cargo build --release 1>/dev/null 2> /dev/null
 function samples() {
         export RUST_BACKTRACE=full
         kv_sz=(16 16 100 1024 1024 1024 16 10240)
+        mode=(insert get mixed scan)
         # set -x
         db_root=$1
 
@@ -21,30 +22,15 @@ function samples() {
         do
                 for ((j = 0; j < ${#kv_sz[@]}; j += 2))
                 do
-                        ./target/release/kv_bench --path $db_root --threads $i --iterations $cnt --mode insert --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
-                        if test $? -ne 0
-                        then
-                                echo "insert threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./target/release/kv_bench --path $db_root --threads $i --iterations $cnt --mode get --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
-                        if test $? -ne 0
-                        then
-                                echo "get threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./target/release/kv_bench --path $db_root --threads $i --iterations $cnt --mode mixed --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]} --insert-ratio 30
-                        if test $? -ne 0
-                        then
-                                echo "mixed threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./target/release/kv_bench --path $db_root --threads $i --iterations $cnt --mode scan --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]} --insert-ratio 30
-                        if test $? -ne 0
-                        then
-                                echo "mixed threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
+                      for ((k = 0; k < ${#mode[@]}; k += 1))
+                      do 
+                            ./target/release/kv_bench --path $db_root --threads $i --iterations $cnt --mode ${mode[k]} --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
+                            if test $? -ne 0
+                            then
+                                    echo "${mode[k]} threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
+                                    exit 1
+                            fi
+                      done
                 done
         done
 }
diff --git a/scripts/rocksdb.sh b/scripts/rocksdb.sh
index 7ff6b57..46a3314 100755
--- a/scripts/rocksdb.sh
+++ b/scripts/rocksdb.sh
@@ -13,6 +13,7 @@ cmake --build --preset release 1>/dev/null 2>/dev/null
 
 function samples() {
         kv_sz=(16 16 100 1024 1024 1024 16 10240)
+        mode=(insert get mixed scan)
         # set -x
         db_root=$1
         cnt=100000
@@ -20,30 +21,15 @@ function samples() {
         do
                 for ((j = 0; j < ${#kv_sz[@]}; j += 2))
                 do
-                        ./build/release/rocksdb_bench --path $db_root --threads $i --iterations $cnt --mode insert --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
-                        if test $? -ne 0
-                        then
-                                echo "insert threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./build/release/rocksdb_bench --path $db_root --threads $i --iterations $cnt --mode get --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
-                        if test $? -ne 0
-                        then
-                                echo "get threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./build/release/rocksdb_bench --path $db_root --threads $i --iterations $cnt --mode mixed --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]} --insert-ratio 30
-                        if test $? -ne 0
-                        then
-                                echo "mixed threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
-                        ./build/release/rocksdb_bench --path $db_root --threads $i --iterations $cnt --mode scan --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]} --insert-ratio 30
-                        if test $? -ne 0
-                        then
-                                echo "mixed threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
-                                exit 1
-                        fi
+                        for ((k = 0; k < ${#mode[@]}; k += 1))
+                        do
+                            ./build/release/rocksdb_bench --path $db_root --threads $i --iterations $cnt --mode ${mode[k]} --key-size ${kv_sz[j]} --value-size ${kv_sz[j+1]}
+                            if test $? -ne 0
+                            then
+                                    echo "${mode[k]} threads $i ksz ${kv_sz[j]} vsz ${kv_sz[j+1]} fail"
+                                    exit 1
+                            fi
+                        done
                 done
         done
 }