diff --git a/interactive_engine/executor/store/groot/src/bin/write_bench.rs b/interactive_engine/executor/store/groot/src/bin/write_bench.rs
index 3779fa359b62..26e306039b60 100644
--- a/interactive_engine/executor/store/groot/src/bin/write_bench.rs
+++ b/interactive_engine/executor/store/groot/src/bin/write_bench.rs
@@ -9,8 +9,7 @@ use std::time::Duration;
 use maxgraph_store::db::api::multi_version_graph::MultiVersionGraph;
 use maxgraph_store::db::api::{GraphConfigBuilder, TypeDefBuilder, Value, ValueType};
 use maxgraph_store::db::graph::store::GraphStore;
-
-use self::db::util::{fs, Timer};
+use maxgraph_store::db::util::{fs, time};
 
 fn main() {
     let args: Vec<String> = env::args().collect();
@@ -61,7 +60,7 @@ fn main() {
         .unwrap();
     println!("schema created");
     let str_len = 100;
-    let timer = Timer::new();
+    let timer = time::Timer::new();
     let mut tmp_time = 0.0;
     let mut tmp_count = 0;
     let val = "c".repeat(str_len);
diff --git a/interactive_engine/executor/store/groot/src/db/mod.rs b/interactive_engine/executor/store/groot/src/db/mod.rs
index 0458e5450b18..f95b7131ca6c 100644
--- a/interactive_engine/executor/store/groot/src/db/mod.rs
+++ b/interactive_engine/executor/store/groot/src/db/mod.rs
@@ -5,5 +5,5 @@ pub mod graph;
 #[allow(bare_trait_objects)]
 pub mod proto;
 pub mod storage;
-mod util;
+pub mod util;
 pub mod wrapper;
diff --git a/interactive_engine/executor/store/groot/src/db/util/mod.rs b/interactive_engine/executor/store/groot/src/db/util/mod.rs
index 8e8c0a2dedab..18518ee24dcc 100644
--- a/interactive_engine/executor/store/groot/src/db/util/mod.rs
+++ b/interactive_engine/executor/store/groot/src/db/util/mod.rs
@@ -1,4 +1,3 @@
-#[cfg(test)]
 pub mod fs;
 pub mod lock;
 pub mod time;